Last data update: Sep 16, 2024. (Total: 47680 publications since 2009)
Records 1-30 (of 48 Records) |
Query Trace: Dwyer J [original query] |
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Use of community health workers to help end the epidemic of sexually transmitted infections
Seiler N , Horton K , Organick-Lee P , Heyison C , Osei A , Dwyer G , Karacuschansky A , Washington M , Spott A , Pearson WS . Public Health Rep 2023 333549231199481 The United States is experiencing an epidemic of sexually transmitted infections (STIs); 2.5 million cases of chlamydia, gonorrhea, and syphilis were reported in 2021.1 From 2017 to 2021, the number of reported cases of gonorrhea increased by 28%, and reported syphilis cases increased by 74%.1 If untreated, these bacterial STIs can lead to pain, infertility, increased susceptibility to HIV infection, and, for syphilis, death. Reported cases of prenatally acquired congenital syphilis—which can lead to stillbirth, low birth weight, infant death, and other complications—increased by 203% from 2017 to 2021.1 | These STI numbers are climbing despite the fact that bacterial STIs are detectable and treatable. The challenge for public health and health care systems is connecting individuals and communities with STI screening, diagnostic, and treatment services as well as education about STIs and sexual health. Issues related to stigma, privacy, and medical mistrust can compound barriers to prevention and care and can hamper the kind of engagement needed to address the current epidemic. |
Life expectancy by county, race, and ethnicity in the USA, 2000-19: a systematic analysis of health disparities
GBD US Health Disparities Collaborators , Dwyer-Lindgren Laura , Kendrick Parkes , Kelly Yekaterina O , Sylte Dillon O , Schmidt Chris , Blacker Brigette F , Daoud Farah , Abdi Amal A , Baumann Mathew , Mouhanna Farah , Kahn Ethan , Hay Simon I , Mensah George A , Nápoles Anna M , Pérez-Stable Eliseo J , Shiels Meredith , Freedman Neal , Arias Elizabeth , George Stephanie A , Murray David M , Phillips John Wr , Spittel Michael L , Murray Christopher Jl , Mokdad Ali H . Lancet 2022 400 (10345) 25-38 BACKGROUND: There are large and persistent disparities in life expectancy among racial-ethnic groups in the USA, but the extent to which these patterns vary geographically on a local scale is not well understood. This analysis estimated life expectancy for five racial-ethnic groups, in 3110 US counties over 20 years, to describe spatial-temporal variations in life expectancy and disparities between racial-ethnic groups. METHODS: We applied novel small-area estimation models to death registration data from the US National Vital Statistics System and population data from the US National Center for Health Statistics to estimate annual sex-specific and age-specific mortality rates stratified by county and racial-ethnic group (non-Latino and non-Hispanic White [White], non-Latino and non-Hispanic Black [Black], non-Latino and non-Hispanic American Indian or Alaska Native [AIAN], non-Latino and non-Hispanic Asian or Pacific Islander [API], and Latino or Hispanic [Latino]) from 2000 to 2019. We adjusted these mortality rates to correct for misreporting of race and ethnicity on death certificates and then constructed abridged life tables to estimate life expectancy at birth. FINDINGS: Between 2000 and 2019, trends in life expectancy differed among racial-ethnic groups and among counties. Nationally, there was an increase in life expectancy for people who were Black (change 3·9 years [95% uncertainty interval 3·8 to 4·0]; life expectancy in 2019 75·3 years [75·2 to 75·4]), API (2·9 years [2·7 to 3·0]; 85·7 years [85·3 to 86·0]), Latino (2·7 years [2·6 to 2·8]; 82·2 years [82·0 to 82·5]), and White (1·7 years [1·6 to 1·7]; 78·9 years [78·9 to 79·0]), but remained the same for the AIAN population (0·0 years [-0·3 to 0·4]; 73·1 years [71·5 to 74·8]). At the national level, the negative difference in life expectancy for the Black population compared with the White population decreased during this period, whereas the negative difference for the AIAN population compared with the White population increased; in both cases, these patterns were widespread among counties. The positive difference in life expectancy for the API and Latino populations compared with the White population increased at the national level from 2000 to 2019; however, this difference declined in a sizeable minority of counties (615 [42·0%] of 1465 counties) for the Latino population and in most counties (401 [60·2%] of 666 counties) for the API population. For all racial-ethnic groups, improvements in life expectancy were more widespread across counties and larger from 2000 to 2010 than from 2010 to 2019. INTERPRETATION: Disparities in life expectancy among racial-ethnic groups are widespread and enduring. Local-level data are crucial to address the root causes of poor health and early death among disadvantaged groups in the USA, eliminate health disparities, and increase longevity for all. FUNDING: National Institute on Minority Health and Health Disparities; National Heart, Lung, and Blood Institute; National Cancer Institute; National Institute on Aging; National Institute of Arthritis and Musculoskeletal and Skin Diseases; Office of Disease Prevention; and Office of Behavioral and Social Science Research, US National Institutes of Health. |
Congenital syphilis in the Medicaid program: Assessing challenges and opportunities through the experiences of seven southern states
Seiler N , Pearson WS , Bachmann LH , Heyison C , Organick-Lee P , Karacuschansky A , Dwyer G , Osei A , Stoll H , Horton K . Womens Health Issues 2023 33 (4) 349-358 INTRODUCTION: Rates of congenital syphilis cases are increasing, particularly among lower socioeconomic populations within the southern United States. Medicaid covers a significant portion of these births, which provides an opportunity to improve birth outcomes. This project sought to collect information from key stakeholders to assess facilitators of and barriers to Medicaid funding of prenatal syphilis screening and to provide insight into improving screening and lowering incidence through the Medicaid program. METHODS: Seven southern states (Alabama, Georgia, Kentucky, Louisiana, North Carolina, South Carolina, and Tennessee) were identified for this assessment. Researchers conducted a legal and policy analysis for each state to gather information on factors affecting congenital syphilis prevention, identifying knowledge gaps, and inform the development of interview guides. Seventeen structured interviews with 29 participants were conducted to gather information on facilitators and barriers to receiving timely prenatal syphilis screening through the Medicaid program. Interview transcripts were analyzed and compared to identify key themes. RESULTS: Barriers to timely prenatal syphilis screening include varied laws among the states on the timing of screening, Medicaid reimbursement policies that may not adequately incentivize testing, Medicaid enrollment issues that affect both enrollment and continuity of care, and lack of clear understanding among providers on recommended testing. CONCLUSION: This work provides insight into systemic issues that may be affecting rates of prenatal syphilis screening and incidence among Medicaid enrollees and others in the U.S. South. To address rising congenital syphilis cases, policymakers should consider requiring third trimester syphilis screening, adopting policies to enhance access to prenatal care, adapting Medicaid payment and incentive models, and promoting collaboration between Medicaid and public health agencies. |
Evaluating the sustainability of patient navigation programs in oncology by length of existence, funding, and payment model participation
Garfield KM , Franklin EF , Battaglia TA , Dwyer AJ , Freund KM , Wightman PD , Rohan EA . Cancer 2022 128 Suppl 13 2578-2589 BACKGROUND: For this study, the authors examined whether specific programmatic factors were associated with the sustainability of patient navigation programs. METHODS: This cross-sectional survey explored navigation programmatic factors associated with 3 measures of sustainability: 1) length of program existence, 2) reliance on sustainable funding, and 3) participation in alternative payment models. In total, 750 patient navigators or program administrators affiliated with oncology navigation programs in clinical-based and community-based settings completed the survey between April and July 2019. RESULTS: Associations were observed between both accreditation and work setting and measures of program sustainability. Accredited programs and larger, more resourced clinical institutions were particularly likely to exhibit multiple measures of sustainability. The results also identified significant gaps at the programmatic level in data collection and reporting among navigation programs, but no association was observed between programmatic data collection/reporting and sustainability. CONCLUSIONS: Navigation is not currently a reimbursable service and has historically been viewed as value-added in oncology settings. Therefore, factors associated with sustainability are critical to understand how to build a framework for successful navigation programs within the current system and also to develop the case for potential reimbursement in the future. |
Mapping HIV prevalence in Nigeria using small area estimates to develop a targeted HIV intervention strategy
O'Brien-Carelli C , Steuben K , Stafford KA , Aliogo R , Alagi M , Johanns CK , Ibrahim J , Shiraishi R , Ehoche A , Greby S , Dirlikov E , Ibrahim D , Bronson M , Aliyu G , Aliyu S , Dwyer-Lindgren L , Swaminathan M , Duber HC , Charurat M . PLoS One 2022 17 (6) e0268892 OBJECTIVE: Although geographically specific data can help target HIV prevention and treatment strategies, Nigeria relies on national- and state-level estimates for policymaking and intervention planning. We calculated sub-state estimates along the HIV continuum of care in Nigeria. DESIGN: Using data from the Nigeria HIV/AIDS Indicator and Impact Survey (NAIIS) (July-December 2018), we conducted a geospatial analysis estimating three key programmatic indicators: prevalence of HIV infection among adults (aged 15-64 years); antiretroviral therapy (ART) coverage among adults living with HIV; and viral load suppression (VLS) rate among adults living with HIV. METHODS: We used an ensemble modeling method called stacked generalization to analyze available covariates and a geostatistical model to incorporate the output from stacking as well as spatial autocorrelation in the modeled outcomes. Separate models were fitted for each indicator. Finally, we produced raster estimates of each indicator on an approximately 5×5-km grid and estimates at the sub-state/local government area (LGA) and state level. RESULTS: Estimates for all three indicators varied both within and between states. While state-level HIV prevalence ranged from 0.3% (95% uncertainty interval [UI]: 0.3%-0.5%]) to 4.3% (95% UI: 3.7%-4.9%), LGA prevalence ranged from 0.2% (95% UI: 0.1%-0.5%) to 8.5% (95% UI: 5.8%-12.2%). Although the range in ART coverage did not substantially differ at state level (25.6%-76.9%) and LGA level (21.9%-81.9%), the mean absolute difference in ART coverage between LGAs within states was 16.7 percentage points (range, 3.5-38.5 percentage points). States with large differences in ART coverage between LGAs also showed large differences in VLS-regardless of level of effective treatment coverage-indicating that state-level geographic targeting may be insufficient to address coverage gaps. CONCLUSION: Geospatial analysis across the HIV continuum of care can effectively highlight sub-state variation and identify areas that require further attention in order to achieve epidemic control. By generating local estimates, governments, donors, and other implementing partners will be better positioned to conduct targeted interventions and prioritize resource distribution. |
Daily steps and all-cause mortality: a meta-analysis of 15 international cohorts
Paluch AE , Bajpai S , Bassett DR , Carnethon MR , Ekelund U , Evenson KR , Galuska DA , Jefferis BJ , Kraus WE , Lee IM , Matthews CE , Omura JD , Patel AV , Pieper CF , Rees-Punia E , Dallmeier D , Klenk J , Whincup PH , Dooley EE , PetteeGabriel K , Palta P , Pompeii LA , Chernofsky A , Larson MG , Vasan RS , Spartano N , Ballin M , Nordstrm P , Nordstrm A , Anderssen SA , Hansen BH , Cochrane JA , Dwyer T , Wang J , Ferrucci L , Liu F , Schrack J , Urbanek J , Saint-Maurice PF , Yamamoto N , Yoshitake Y , Newton RLJr , Yang S , Shiroma EJ , Fulton JE . Lancet Public Health 2022 7 (3) e219-e228 BACKGROUND: Although 10000 steps per day is widely promoted to have health benefits, there is little evidence to support this recommendation. We aimed to determine the association between number of steps per day and stepping rate with all-cause mortality. METHODS: In this meta-analysis, we identified studies investigating the effect of daily step count on all-cause mortality in adults (aged 18 years), via a previously published systematic review and expert knowledge of the field. We asked participating study investigators to process their participant-level data following a standardised protocol. The primary outcome was all-cause mortality collected from death certificates and country registries. We analysed the dose-response association of steps per day and stepping rate with all-cause mortality. We did Cox proportional hazards regression analyses using study-specific quartiles of steps per day and calculated hazard ratios (HRs) with inverse-variance weighted random effects models. FINDINGS: We identified 15 studies, of which seven were published and eight were unpublished, with study start dates between 1999 and 2018. The total sample included 47471 adults, among whom there were 3013 deaths (101 per 1000 participant-years) over a median follow-up of 71 years ([IQR 43-99]; total sum of follow-up across studies was 297837 person-years). Quartile median steps per day were 3553 for quartile 1, 5801 for quartile 2, 7842 for quartile 3, and 10901 for quartile 4. Compared with the lowest quartile, the adjusted HR for all-cause mortality was 060 (95% CI 051-071) for quartile 2, 055 (049-062) for quartile 3, and 047 (039-057) for quartile 4. Restricted cubic splines showed progressively decreasing risk of mortality among adults aged 60 years and older with increasing number of steps per day until 6000-8000 steps per day and among adults younger than 60 years until 8000-10000 steps per day. Adjusting for number of steps per day, comparing quartile 1 with quartile 4, the association between higher stepping rates and mortality was attenuated but remained significant for a peak of 30 min (HR 067 [95% CI 056-083]) and a peak of 60 min (067 [050-090]), but not significant for time (min per day) spent walking at 40 steps per min or faster (112 [096-132]) and 100 steps per min or faster (086 [058-128]). INTERPRETATION: Taking more steps per day was associated with a progressively lower risk of all-cause mortality, up to a level that varied by age. The findings from this meta-analysis can be used to inform step guidelines for public health promotion of physical activity. FUNDING: US Centers for Disease Control and Prevention. |
Chronic Disease Management Service Opportunities for Community Pharmacists During the COVID-19 Pandemic.
Dwyer G , Popoola A , Seiler N , Therrien N , Karacuschansky A , Fulmer E , Horton K . Prev Chronic Dis 2022 19 E10 Health system disruption caused by the COVID-19 pandemic prompted public health professionals to reevaluate potential barriers and opportunities to community pharmacist provision of chronic disease management services and to identify opportunities for maximizing community pharmacists' impact. Researchers conducted semistructured interviews with representatives from chronic disease prevention and pharmacy practice and policy organizations to identify key themes across multiple interviews and novel responses of interest. Interviewees described a lack of payment models to support pharmacist-provided chronic disease management services but noted opportunities for community pharmacists to demonstrate their value in offering services they are uniquely positioned to provide and to implement better workflow solutions. Successfully demonstrating pharmacists' value and making the case for reimbursement from payors, as well as optimizing pharmacy workflow, are critical to maximizing pharmacists' impact in chronic disease prevention and management. |
Naomi: a new modelling tool for estimating HIV epidemic indicators at the district level in sub-Saharan Africa.
Eaton JW , Dwyer-Lindgren L , Gutreuter S , O'Driscoll M , Stevens O , Bajaj S , Ashton R , Hill A , Russell E , Esra R , Dolan N , Anifowoshe YO , Woodbridge M , Fellows I , Glaubius R , Haeuser E , Okonek T , Stover J , Thomas ML , Wakefield J , Wolock TM , Berry J , Sabala T , Heard N , Delgado S , Jahn A , Kalua T , Chimpandule T , Auld A , Kim E , Payne D , Johnson LF , FitzJohn RG , Wanyeki I , Mahy MI , Shiraishi RW . J Int AIDS Soc 2021 24 Suppl 5 e25788 INTRODUCTION: HIV planning requires granular estimates for the number of people living with HIV (PLHIV), antiretroviral treatment (ART) coverage and unmet need, and new HIV infections by district, or equivalent subnational administrative level. We developed a Bayesian small-area estimation model, called Naomi, to estimate these quantities stratified by subnational administrative units, sex, and five-year age groups. METHODS: Small-area regressions for HIV prevalence, ART coverage and HIV incidence were jointly calibrated using subnational household survey data on all three indicators, routine antenatal service delivery data on HIV prevalence and ART coverage among pregnant women, and service delivery data on the number of PLHIV receiving ART. Incidence was modelled by district-level HIV prevalence and ART coverage. Model outputs of counts and rates for each indicator were aggregated to multiple geographic and demographic stratifications of interest. The model was estimated in an empirical Bayes framework, furnishing probabilistic uncertainty ranges for all output indicators. Example results were presented using data from Malawi during 2016-2018. RESULTS: Adult HIV prevalence in September 2018 ranged from 3.2% to 17.1% across Malawi's districts and was higher in southern districts and in metropolitan areas. ART coverage was more homogenous, ranging from 75% to 82%. The largest number of PLHIV was among ages 35 to 39 for both women and men, while the most untreated PLHIV were among ages 25 to 29 for women and 30 to 34 for men. Relative uncertainty was larger for the untreated PLHIV than the number on ART or total PLHIV. Among clients receiving ART at facilities in Lilongwe city, an estimated 71% (95% CI, 61% to 79%) resided in Lilongwe city, 20% (14% to 27%) in Lilongwe district outside the metropolis, and 9% (6% to 12%) in neighbouring Dowa district. Thirty-eight percent (26% to 50%) of Lilongwe rural residents and 39% (27% to 50%) of Dowa residents received treatment at facilities in Lilongwe city. CONCLUSIONS: The Naomi model synthesizes multiple subnational data sources to furnish estimates of key indicators for HIV programme planning, resource allocation, and target setting. Further model development to meet evolving HIV policy priorities and programme need should be accompanied by continued strengthening and understanding of routine health system data. |
Dietary supplement use among infants and toddlers aged <24 months in the United States, NHANES 2007-2014
Gahche JJ , Herrick KA , Potischman N , Bailey RL , Ahluwalia N , Dwyer JT . J Nutr 2019 149 (2) 314-322 Background: Limited nationally representative data are available on dietary supplement (DS) use and resulting nutrient exposures among infants and toddlers. Objective: This study evaluated DS use among US infants and toddlers to characterize DS use, estimate nutrient intake from DSs, and assess trends in DS use over time. Methods: Using nationally representative data from NHANES (2007-2014) and trends over time (1999-2014), we estimated prevalence of DS use and types of products used for US infants and toddlers aged <2 y (n = 2823). We estimated median daily intakes of vitamins and minerals consumed via DSs for all participants aged <2 y, by age groups (0-11.9 mo and 12.0-23.9 mo), and by feeding practices for infants 0-5.9 mo. Results: Overall, 18.2% (95% CI: 16.2%, 20.3%) of infants and toddlers used >/=1 DS in the past 30 d. Use was lower among infants (0-5.9 mo: 14.6%; 95% CI: 11.5%, 18.1%; 6-11.9 mo: 11.6%; 95% CI: 8.8%, 15.0%) than among toddlers (12-23.9 mo: 23.3%; 95% CI: 20.4%, 26.3%). The most commonly reported DSs were vitamin D and multivitamin infant drops for those <12 mo, and chewable multivitamin products for toddlers (12-23.9 mo). The nutrients most frequently consumed from DSs were vitamins D, A, C, and E for those <2 y; for infants <6 mo, a higher percentage of those fed breast milk than those fed formula consumed these nutrients via DSs. DS use remained steady for infants (6-11.9 mo) and toddlers from 1999-2002 to 2011-2014, but increased from 7% to 20% for infants aged 0-5.9 mo. Conclusions: One in 5 infants and toddlers aged <2 y use >/=1 DS. Future studies should examine total nutrient intake from foods, beverages, and DSs to evaluate nutrient adequacy overall and by nutrient source. |
The dietary supplement label database: Recent developments and applications
Dwyer JT , Bailen RA , Saldanha LG , Gahche JJ , Costello RB , Betz JM , Davis CD , Bailey RL , Potischman N , Ershow AG , Sorkin BC , Kuszak AJ , Rios-Avila L , Chang F , Goshorn J , Andrews KW , Pehrsson PR , Gusev PA , Harnly JM , Hardy CJ , Emenaker NJ , Herrick KA . J Nutr 2018 148 1428S-1435S Although many Americans use dietary supplements, databases of dietary supplements sold in the United States have not been widely available. The Dietary Supplement Label Database (DSLD), an easily accessible public-use database, was created in 2008 to provide information on dietary supplement composition for use by researchers and consumers. We describe in this article the history, key features, recent enhancements, and common applications of the DSLD. Accessing current information easily and quickly is crucial for documenting exposures to dietary supplements because they contain nutrients and other bioactive ingredients that may have beneficial or adverse effects on human health. This article details recent developments with the DSLD to achieve this goal, and provides examples of how the DSLD has been used. With periodic updates to track changes in product composition and capture new products entering the market, the DSLD currently contains >71,000 dietary supplement labels. Following usability testing with consumer and researcher user groups completed in 2016, improvements to the DSLD interface were made. As of 2018, both a desktop and mobile device version are available. Since its inception in 2008, the DSLD has been used for research, exposure monitoring, and for other purposes by users in the public and private sectors. Further refinement of the user interface and search features is planned to facilitate ease of use for stakeholders. The DSLD can be used to track changes in product composition and capture new products entering the market. With >71,000 dietary supplement labels, it is a unique resource that policymakers, researchers, clinicians, and consumers may find valuable for multiple applications. |
Federal monitoring of dietary supplement use in the resident, civilian, noninstitutionalized US Population: National Health and Nutrition Examination Survey
Gahche JJ , Bailey RL , Potischman N , Ershow AG , Herrick KA , Ahluwalia N , Dwyer JT . J Nutr 2018 148 (8) 1436S-1444S This review summarizes the current and previous data on dietary supplement (DS) use collected from participants in the NHANES, describes the NHANES DS database used to compute nutrient intakes from DSs, discusses recent developments and future directions, and describes many examples to show the utility of these data in informing nutrition research and policy. Since 1971, NHANES has been collecting information on the use of DSs from participants. These data are critical to national nutrition surveillance and have been used to characterize usage patterns, examine trends over time, assess the percentage of the population meeting or exceeding nutrient recommendations, and help to elucidate the sources contributing nutrients to the diet of the US population. More than half of adults and approximately one-third of children in the United States currently use ≥1 DS in the course of 30 d. DSs contribute to the dietary intake of nutrients and bioactive compounds in the United States and therefore need to be assessed when monitoring nutritional status of the population and when studying diet-health associations. With the recent development and availability of the Dietary Supplement Label Database, a comprehensive DS database that will eventually contain labels for all products marketed in the United States, NHANES DS data will be more easily linked to product information to estimate nutrient intake from DSs. NHANES provides a rich source of nationally representative data on the usage of dietary supplements in the United States. Over time, NHANES has both expanded and improved collection methods. The continued understanding of sources of error in collection methods will continue to be explored and is critical to improved accuracy. |
Comparison of the outcomes of individuals with medically attended influenza A and B virus infections enrolled in 2 international cohort studies over a 6-year period: 2009-2015
Dwyer DE , Lynfield R , Losso MH , Davey RT , Cozzi-Lepri A , Wentworth D , Uyeki TM , Gordin F , Angus B , Qvist T , Emery S , Lundgren J , Neaton JD . Open Forum Infect Dis 2017 4 (4) ofx212 Background: Outcome data from prospective follow-up studies comparing infections with different influenza virus types/subtypes are limited. Methods: Demographic, clinical characteristics and follow-up outcomes for adults with laboratory-confirmed influenza A(H1N1)pdm09, A(H3N2), or B virus infections were compared in 2 prospective cohorts enrolled globally from 2009 through 2015. Logistic regression was used to compare outcomes among influenza virus type/subtypes. Results: Of 3952 outpatients, 1290 (32.6%) had A(H1N1)pdm09 virus infection, 1857 (47.0%) had A(H3N2), and 805 (20.4%) had influenza B. Of 1398 inpatients, 641 (45.8%) had A(H1N1)pdm09, 532 (38.1%) had A(H3N2), and 225 (16.1%) had influenza B. Outpatients with A(H1N1)pdm09 were younger with fewer comorbidities and were more likely to be hospitalized during the 14-day follow-up (3.3%) than influenza B (2.2%) or A(H3N2) (0.7%; P < .0001). Hospitalized patients with A(H1N1)pdm09 (20.3%) were more likely to be enrolled from intensive care units (ICUs) than those with A(H3N2) (11.3%) or B (9.8%; P < .0001). However, 60-day follow-up of discharged inpatients showed no difference in disease progression (P = .32) or all-cause mortality (P = .30) among influenza types/subtypes. These findings were consistent after covariate adjustment, in sensitivity analyses, and for subgroups defined by age, enrollment location, and comorbidities. Conclusions: Outpatients infected with influenza A(H1N1)pdm09 or influenza B were more likely to be hospitalized than those with A(H3N2). Hospitalized patients infected with A(H1N1)pdm09 were younger and more likely to have severe disease at study entry (measured by ICU enrollment), but did not have worse 60-day outcomes. |
The FLASHE Study: Survey development, dyadic perspectives, and participant characteristics
Nebeling LC , Hennessy E , Oh AY , Dwyer LA , Patrick H , Blanck HM , Perna FM , Ferrer RA , Yaroch AL . Am J Prev Med 2017 52 (6) 839-848 The National Cancer Institute developed the Family Life, Activity, Sun, Health, and Eating (FLASHE) Study to examine multiple cancer preventive behaviors within parent-adolescent dyads. The purpose of creating FLASHE was to enable the examination of physical activity, diet, and other cancer preventive behaviors and potential correlates among parent-adolescent dyads. FLASHE surveys were developed from a process involving literature reviews, scientific input from experts in the field, cognitive testing, and usability testing. This cross-sectional, web-based study of parents and their adolescent children (aged 12-17 years) was administered between April and October 2014. The nationwide sample consisted of 1,573 parent-adolescent dyads (1,699 parents and 1,581 adolescents) who returned all FLASHE surveys. FLASHE assessed parent and adolescent reports of several intrapersonal and interpersonal domains (including psychosocial variables, parenting, and the community and home environments). On a subset of example FLASHE items across these domains, responses of parents and adolescents within the same dyads were positively and significantly correlated (r =0.32-0.63). Analyses were run in 2015-2016. FLASHE data present multiple opportunities for studying research questions among individuals or dyads, including the ability to examine similarity between parents and adolescents on many constructs relevant to cancer preventive behaviors. FLASHE data are publicly available for researchers and practitioners to help advance research on cancer preventive health behaviors. |
Concomitant opioid and laxative use in older adults in hospice care in the United States: 2007
Lau DT , Dwyer LL , Shega JW . J Am Geriatr Soc 2016 64 (11) e160-e165 OBJECTIVES: To examine laxative use by individuals in hospice who were taking opioids during the last week of life. DESIGN: Retrospective cross-sectional. SETTING: 2007 National Home and Hospice Care Survey. PARTICIPANTS: Individuals in hospice aged 65 and older who were taking opioids during the last week of life (N = 2,825). MEASUREMENTS: Hospice staff were asked the names of all medications and drugs that participants were taking 7 days before and on the day of death while in hospice, including any standing, routine, or as-needed medications." Medications "used" included medications taken and as-needed medications provided in case a symptom developed. Opioids included all opioid-combination drugs. Laxatives included fibers, lubricants, stimulants, and suppositories. RESULTS: Forty-one percent of participants had cancer as the primary hospice diagnosis, 13% heart disease, 12% debility, 11% dementia, 8% lung disease, and 15% other. Overall, 52% of opioid users used a laxative in the last week of life; the proportions of opioid and laxative users did not differ according to diagnosis. Racial minorities taking opioids had lower odds than white participants (odds ratio (OR) = 0.57, 95% confidence interval (CI) = 0.33-0.99) of using laxatives. Participants taking opioids enrolled in hospice for 7 days or less had lower odds of using laxatives than those enrolled for more than 7 days (OR = 0.65, 95% CI = 0.37-0.95), as did those in hospice inpatient, hospital, or other settings (OR = 0.45, 95% CI = 0.43-0.93) than those in long-term care settings. Participants using five or fewer medications had lower odds of using laxatives than those using six to 10 (OR = 6.01, 95% CI = 3.88-9.32) or 11 to 25 medications (OR = 13.80, 95% CI = 8.74-21.80). CONCLUSION: In 2007, slightly more than half of older adults in hospice who were taking opioids used laxatives during the last week of life. Recent quality indicators from the Centers for Medicare and Medicaid Services recommend laxative treatment when opioid therapy is initiated to prevent opioid-induced constipation and are intended to improve laxative use in individuals in hospice treated with opioids. |
A longitudinal hepatitis B vaccine cohort demonstrates long-lasting hepatitis B virus (HBV) cellular immunity despite loss of antibody against HBV surface antigen
Simons BC , Spradling PR , Bruden DJ , Zanis C , Case S , Choromanski TL , Apodaca M , Brogdon HD , Dwyer G , Snowball M , Negus S , Bruce MG , Morishima C , Knall C , McMahon BJ . J Infect Dis 2016 214 (2) 273-80 BACKGROUND: Long-lasting protection resulting from hepatitis B vaccine, despite loss of antibody against hepatitis B virus (HBV) surface antigen (anti-HBs), is undetermined. METHODS: We recruited persons from a cohort vaccinated with plasma-derived hepatitis B vaccine in 1981 who have been followed periodically since. We performed serological testing for anti-HBs and microRNA-155 and assessed HBV-specific T-cell responses by enzyme-linked immunospot and cytometric bead array. Study subgroups were defined 32 years after vaccination as having an anti-HBs level of either ≥10 mIU/mL (group 1; n = 13) or <10 mIU/mL (group 2; n = 31). RESULTS: All 44 participants, regardless of anti-HBs level, tested positive for tumor necrosis factor alpha, interleukin 10, or interleukin 6 production by HBV surface antigen-specific T cells. The frequency of natural killer T cells correlated with the level of anti-HBs (P = .008). The proportion of participants who demonstrated T-cell responses to HBV core antigen varied among the cytokines measured, suggesting some natural exposure to HBV in the study group. No participant had evidence of breakthrough HBV infection. CONCLUSIONS: Evidence of long-lasting cellular immunity, regardless of anti-HBs level, suggests that protection afforded by primary immunization with plasma-derived hepatitis B vaccine during childhood and adulthood lasts at least 32 years. |
Update on NHANES dietary data: Focus on collection, release, analytical considerations, and uses to inform public policy
Ahluwalia N , Dwyer J , Terry A , Moshfegh A , Johnson C . Adv Nutr 2016 7 (1) 121-34 NHANES is the cornerstone for national nutrition monitoring to inform nutrition and health policy. Nutritional assessment in NHANES is described with a focus on dietary data collection, analysis, and uses in nutrition monitoring. NHANES has been collecting thorough data on diet, nutritional status, and chronic disease in cross-sectional surveys with nationally representative samples since the early 1970s. Continuous data collection began in 1999 with public data release in 2-y cycles on approximately 10,000 participants. In 2002, the Continuing Survey of Food Intakes by Individuals and the NHANES dietary component were merged, forming a consolidated dietary data collection known as What We Eat in America; since then, 24-h recalls have been collected on 2 d using the USDA's Automated Multiple-Pass Method. Detailed and targeted food-frequency questionnaires have been collected in some NHANES cycles. Dietary supplement use data have been collected (in detail since 2007) so that total nutrient intakes can be described for the population. The continuous NHANES can adapt its content to address emerging public health needs and reflect federal priorities. Changes in data collection methods are made after expert input and validation/crossover studies. NHANES dietary data are used to describe intake of foods, nutrients, food groups, and dietary patterns by the US population and large sociodemographic groups to plan and evaluate nutrition programs and policies. Usual dietary intake distributions can be estimated after adjusting for day-to-day variation. NHANES remains open and flexible to incorporate improvements while maintaining data quality and providing timely data to track the nation's nutrition and health status. In summary, NHANES collects dietary data in the context of its broad, multipurpose goals; the strengths and limitations of these data are also discussed in this review. |
Medications that older adults in hospice care in the United States take, 2007
Dwyer LL , Lau DT , Shega JW . J Am Geriatr Soc 2015 63 (11) 2282-9 OBJECTIVES: To describe medications that older adults in hospice with cancer, dementia, debility, heart disease, and lung disease take during the last week of life. DESIGN: Retrospective cross-sectional study. SETTING: Nationally representative sample of 695 U.S. hospices in the 2007 National Home and Hospice Care Survey. PARTICIPANTS: Individuals aged 65 and older with a primary diagnosis of cancer (49%), dementia (12%), debility (14%), heart disease (16%), or lung disease (10%) who received end-of-life care during their last week of life (N = 2,623). MEASUREMENTS: Medication data were obtained from hospice staff, who were asked, "What are the names of all the medications and drugs the patient was taking 7 days prior to and on the day of his or her death while in hospice? Please include any standing, routine, or PRN medications." RESULTS: The unweighted survey response rate was 71%. The average number of medications taken was 10.2. The most common therapeutic classes were analgesics (98%); antiemetic and antivertigo medications (78%); anxiolytics, sedatives, and hypnotics (76%); anticonvulsants (71%); and laxatives (53%). Approximately one-quarter of the individuals took proton pump inhibitors, anticoagulants, and antidepressants, and fewer than 20% took antacids and antibiotics. A smaller percentage of individuals with dementia and debility than of those with cancer took opioid analgesics. Individuals with heart disease were more likely than individuals in the other clinical cohorts to take diuretics, and those with lung disease were more likely than those in the other clinical cohorts to take bronchodilators. A higher percentage of individuals with dementia and with debility than with cancer and lung disease took antidepressants. CONCLUSION: People continue to receive disease-focused therapies at the end of life rather than therapies exclusively for palliation of symptoms, suggesting that treatments may vary according to the person's primary diagnosis. |
Assessment of training and technical assistance needs of Colorectal Cancer Control Program grantees in the U.S
Escoffery C , Hannon P , Maxwell AE , Vu T , Leeman J , Dwyer A , Mason C , Sowles S , Rice K , Gressard L . BMC Public Health 2015 15 (1) 49 BACKGROUND: Practitioners often require training and technical assistance to build their capacity to select, adapt, and implement evidence-based interventions (EBIs). The CDC Colorectal Cancer Control Program (CRCCP) aims to promote CRC screening to increase population-level screening. This study identified the training and technical assistance (TA) needs and preferences for training related to the implementation of EBIs among CRCCP grantees. METHODS: Twenty-nine CRCCP grantees completed an online survey about their screening activities, training and technical assistance in 2012. They rated desire for training on various evidence-based strategies to increase cancer screening, evidence-based competencies, and program management topics. They also reported preferences for training formats and facilitators and barriers to trainings. RESULTS: Many CRCCP grantees expressed the need for training with regards to specific EBIs, especially system-level and provider-directed EBIs to promote CRC screening. Grantees rated these EBIs as more difficult to implement than client-oriented EBIs. Grantees also reported a moderate need for training regarding finding EBIs, assessing organizational capacity, implementing selected EBIs, and conducting process and outcome evaluations. Other desired training topics reported with higher frequency were partnership development and data collection/evaluation. Grantees preferred training formats that were interactive such as on-site trainings, webinars or expert consultants. CONCLUSIONS: Public health organizations need greater supports for adopting evidence-based interventions, working with organizational-level change, partnership development and data management. Future capacity building efforts for the adoption of EBIs should focus on systems or provider level interventions and key processes for health promotion and should be delivered in a variety of ways to assist local organizations in cancer prevention and control. |
Multivitamin-mineral use is associated with reduced risk of cardiovascular disease mortality among women in the United States
Bailey RL , Fakhouri TH , Park Y , Dwyer JT , Thomas PR , Gahche JJ , Miller PE , Dodd KW , Sempos CT , Murray DM . J Nutr 2015 145 (3) 572-8 BACKGROUND: Multivitamin-mineral (MVM) products are the most commonly used supplements in the United States, followed by multivitamin (MV) products. Two randomized clinical trials (RCTs) did not show an effect of MVMs or MVs on cardiovascular disease (CVD) mortality; however, no clinical trial data are available for women with MVM supplement use and CVD mortality. OBJECTIVE: The objective of this research was to examine the association between MVM and MV use and CVD-specific mortality among US adults without CVD. METHODS: A nationally representative sample of adults from the restricted data NHANES III (1988-1994; n = 8678; age ≥40 y) were matched with mortality data reported by the National Death Index through 2011 to examine associations between MVM and MV use and CVD mortality by using Cox proportional hazards models, adjusting for multiple potential confounders. RESULTS: We observed no significant association between CVD mortality and users of MVMs or MVs compared with nonusers; however, when users were classified by the reported length of time products were used, a significant association was found with MVM use of >3 y compared with nonusers (HR: 0.65; 95% CI: 0.49, 0.85). This finding was largely driven by the significant association among women (HR: 0.56; 95% CI: 0.37, 0.85) but not men (HR: 0.79; 95% CI: 0.44, 1.42). No significant association was observed for MV products and CVD mortality in fully adjusted models. CONCLUSIONS: In this nationally representative data set with detailed information on supplement use and CVD mortality data approximately 20 y later, we found an association between MVM use of >3 y and reduced CVD mortality risk for women when models controlled for age, race, education, body mass index, alcohol, aspirin use, serum lipids, blood pressure, and blood glucose/glycated hemoglobin. Our results are consistent with the 1 available RCT in men, indicating no relation with MVM use and CVD mortality. |
Patient navigation in a colorectal cancer screening program
Escoffery C , Fernandez ME , Vernon SW , Liang S , Maxwell AE , Allen JD , Dwyer A , Hannon PA , Kohn M , DeGroff A . J Public Health Manag Pract 2014 21 (5) 433-40 CONTEXT: Colorectal cancer (CRC) is the second leading cause of cancer death among cancers affecting both men and women in the United States. The Centers for Disease Control and Prevention's Colorectal Cancer Control Program (CRCCP) supports both direct clinical screening services (screening provision) and activities to promote screening at the population level (screening promotion). OBJECTIVE: The purpose of this study was to characterize patient navigation (PN) programs for screening provision and promotion for the first 1 to 2 years of program funding. PARTICIPANTS: We conducted a cross-sectional survey of the 29 CRCCP grantees (25 states and 4 tribal organizations) and 14 in-depth interviews to assess program implementation. MAIN OUTCOME MEASURES: The survey and interview guide collected information on CRC screening provision and promotion activities and PN, including the structure of the PN program, characteristics of the navigators, funding mechanism, and navigators' activities. RESULTS: Twenty-four of 28 CRCCP grantees of the survey used PN for screening provision whereas 18 grantees used navigation for screening promotion. Navigators were often trained in nursing or public health. Navigation activities were similar for both screening provision and promotion, and common tasks included assessing and responding to patient barriers to screening, providing patient education, and scheduling appointments. For screening provision, activities centered on making reminder calls, educating patients on bowel preparation for colonoscopies, and tracking patients for completion of the tests. Navigation may influence screening quality by improving patients' bowel preparation for colonoscopies. CONCLUSIONS: Our study provides insights into PN across a federally funded CRC program. Results suggest that PN activities may be instrumental in recruiting people into cancer screening and ensuring completed screening and follow-up. |
Outcomes of influenza A(H1N1)pdm09 virus infection: results from two international cohort studies
Lynfield R , Davey R , Dwyer DE , Losso MH , Wentworth D , Cozzi-Lepri A , Herman-Lamin K , Cholewinska G , David D , Kuetter S , Ternesgen Z , Uyeki TM , Lane HC , Lundgren J , Neaton JD . PLoS One 2014 9 (7) e101785 BACKGROUND: Data from prospectively planned cohort studies on risk of major clinical outcomes and prognostic factors for patients with influenza A(H1N1)pdm09 virus are limited. In 2009, in order to assess outcomes and evaluate risk factors for progression of illness, two cohort studies were initiated: FLU 002 in outpatients and FLU 003 in hospitalized patients. METHODS AND FINDINGS: Between October 2009 and December 2012, adults with influenza-like illness (ILI) were enrolled; outpatients were followed for 14 days and inpatients for 60 days. Disease progression was defined as hospitalization and/or death for outpatients, and hospitalization for >28 days, transfer to intensive care unit (ICU) if enrolled from general ward, and/or death for inpatients. Infection was confirmed by RT-PCR. 590 FLU 002 and 392 FLU 003 patients with influenza A (H1N1)pdm09 were enrolled from 81 sites in 17 countries at 2 days (IQR 1-3) and 6 days (IQR 4-10) following ILI onset, respectively. Disease progression was experienced by 29 (1 death) outpatients (5.1%; 95% CI: 3.4-7.2%) and 80 inpatients [death (32), hospitalization >28 days (43) or ICU transfer (20)] (21.6%; 95% CI: 17.5-26.2%). Disease progression (death) for hospitalized patients was 53.1% (26.6%) and 12.8% (3.8%), respectively, for those enrolled in the ICU and general ward. In pooled analyses for both studies, predictors of disease progression were age, longer duration of symptoms at enrollment and immunosuppression. Patients hospitalized during the pandemic period had a poorer prognosis than in subsequent seasons. CONCLUSIONS: Patients with influenza A(H1N1)pdm09, particularly when requiring hospital admission, are at high risk for disease progression, especially if they are older, immunodeficient, or admitted late in infection. These data reinforce the need for international trials of novel treatment strategies for influenza infection and serve as a reminder of the need to monitor the severity of seasonal and pandemic influenza epidemics globally. TRIAL REGISTRATION: ClinicalTrials.gov Identifiers: FLU 002- NCT01056354, FLU 003- NCT01056185. |
Why U.S. children use dietary supplements
Bailey RL , Gahche JJ , Thomas PR , Dwyer JT . Pediatr Res 2013 74 (6) 737-41 BACKGROUND: Dietary supplements are used by one-third of children. We examined motivations for supplement use in children, the types of products used by motivations, and the role of physicians and health care practitioners in guiding choices about supplements. METHODS: We examined motivations for dietary supplement use reported for children (from birth to 19 y of age; n = 8,245) using the National Health and Nutrition Examination Survey 2007-2010. RESULTS: Dietary supplements were used by 31% of children; many different reasons were given as follows: to "improve overall health" (41%), to "maintain health" (37%), for "supplementing the diet" (23%), to "prevent health problems" (20%), and to "boost immunity" (14%). Most children (~90%) who use dietary supplements use a multivitamin-mineral or multivitamin product. Supplement users tend to be non-Hispanic white, have higher family incomes, report more physical activity, and have health insurance. Only a small group of supplements used by children (15%) were based on the recommendation of a physician or other health care provider. CONCLUSION: Most supplements used by children are not under the recommendation of a health care provider. The most common reasons for use of supplements in children are for health promotion, yet little scientific data support this notion in nutrient-replete children. |
Colorectal cancer control program grantees' use of evidence-based interventions
Hannon PA , Maxwell AE , Escoffery C , Vu T , Kohn M , Leeman J , Carvalho ML , Pfeiffer DJ , Dwyer A , Fernandez ME , Vernon SW , Liang L , Degroff A . Am J Prev Med 2013 45 (5) 644-8 BACKGROUND: Colorectal cancer (CRC) screening is recommended for adults aged 50-75 years, yet screening rates are low, especially among the uninsured. The CDC initiated the Colorectal Cancer Control Program (CRCCP) in 2009 with the goal of increasing CRC screening rates to 80% by 2014. A total of 29 grantees (states and tribal organizations) receive CRCCP funding to (1) screen uninsured adults and (2) promote CRC screening at the population level. PURPOSE: CRCCP encourages grantees to use one or more of five evidence-based interventions (EBIs) recommended by the Guide to Community Preventive Services. The purpose of the study was to evaluate grantees' EBI use. METHODS: A web-based survey was conducted in 2011 measuring grantees' use of CRC screening EBIs and identifying their implementation partners. Data were analyzed in 2012. RESULTS: Twenty-eight grantees (97%) completed the survey. Most respondents (96%) used small media. Fewer used client reminders (75%); reduction of structural barriers (50%); provider reminders (32%); or provider assessment and feedback (50%). Provider-oriented EBIs were rated as harder to implement than client-oriented EBIs. Grantees partnered with several types of organizations to implement EBIs, many with county- or state-wide reach. CONCLUSIONS: Almost all grantees implement EBIs to promote CRC screening, but the EBIs that may have the greatest impact with CRC screening are implemented by fewer grantees in the first 2 years of the CRCCP. |
Is there a reverse J-shaped association between 25-hydroxyvitamin D and all-cause mortality? Results from the U.S. Nationally Representative NHANES
Sempos CT , Durazo-Arvizu RA , Dawson-Hughes B , Yetley EA , Looker AC , Schleicher RL , Cao G , Burt V , Kramer H , Bailey RL , Dwyer JT , Zhang X , Gahche J , Coates PM , Picciano MF . J Clin Endocrinol Metab 2013 98 (7) 3001-9 CONTEXT: A reverse J-shaped association between serum 25-hydroxyvitamin D (25[OH]D) concentration and all-cause mortality was suggested in a 9-year follow-up (1991-2000) analysis of the Third National Health and Nutrition Examination Survey (NHANES III, 1988-1994). OBJECTIVE: Our objective was to repeat the analyses with 6 years additional follow-up to evaluate whether the association persists through 15 years of follow-up. PARTICIPANTS: The study included 15 099 participants aged ≥20 years with 3784 deaths. MAIN OUTCOME MEASURE: Relative risk (RR) of death from all causes was adjusted for age, sex, race/ethnicity, and season using 2 Poisson regression approaches: traditional categorical and cubic splines. Results were given for 9 25(OH)D levels: <20, 20 to 29, 30 to 39, 40 to 49, 50 to 59, 60 to 74, 75 to 99 (reference), 100 to 119, and ≥120 nmol/L. RESULTS: The reverse J-shaped association became stronger with longer follow-up and was not affected by excluding deaths within the first 3 years of follow-up. Similar results were found from both statistical approaches for levels <20 through 119 nmol/L. Adjusted RR (95% confidence interval [CI]) estimates for all levels <60 nmol/L were significantly >1 compared with the reference group. The nadir of risk was 81 nmol/L (95% CI, 73-90 nmol/L). For 25(OH)D ≥120 nmol/L, results (RR, 95% CI) were slightly different using traditional categorical (1.5, 1.02-2.3) and cubic splines approaches (1.2, 0.9-1.4). The association appeared in men, women, adults ages 20 to 64 years, and non-Hispanic whites but was weaker in older adults. The study was too small to evaluate the association in non-Hispanic black and Mexican-American adults. CONCLUSIONS: A reverse J-shaped association between serum 25(OH)D and all-cause mortality appears to be real. It is uncertain whether the association is causal. |
Assessing screening quality in the CDC's Colorectal Cancer Screening Demonstration Program
Nadel MR , Royalty J , Shapiro JA , Joseph D , Seeff LC , Lane DS , Dwyer DM . Cancer 2013 119 Suppl 15 2834-41 BACKGROUND: Gaps in screening quality in community practice have been well documented. The authors examined recommended indicators of screening quality in the Centers for Disease Control and Prevention's Colorectal Cancer Screening Demonstration Program (CRCSDP), which provided colorectal cancer screening and diagnostic services between 2005 and 2009 for asymptomatic, low-income, underinsured, or uninsured individuals at 5 sites around the United States. METHODS: For each client screened in the CRCSDP, a standardized set of colorectal cancer clinical data elements was collected. Data regarding client age, screening history, risk level, screening test indication, results, and recommendation for the next test were analyzed. For colonoscopies, data were analyzed regarding whether the cecum was reached, bowel preparation was adequate, and identified lesions were completely removed. RESULTS: Overall, 53% of the fecal occult blood tests (FOBTs) (2295 tests) distributed were completed and returned. At the 2 sites with adequate numbers of FOBTs, 77% and 97%, respectively, of clients with positive results received follow-up colonoscopies. Site-specific cecal intubation rates ranged from 90% to 98%. Adenoma detection rates were 32% for men and 21% for women. For approximately one-third of colonoscopies, the recommended interval to the next test was shorter than recommended by national guidelines. At some sites, endoscopists failed to report on the adequacy of bowel preparation and completeness of polyp removal. CONCLUSIONS: Cecal intubation rates and adenoma detection rates met recommended levels. The authors identified the need for improvements in the follow-up of positive FOBTs, documentation of important elements in colonoscopy reports, and recommendations for rescreening or surveillance intervals after colonoscopy. Monitoring quality indicators is important to improve screening quality. |
Clinical outcomes from the CDC's Colorectal Cancer Screening Demonstration Program
Seeff LC , Royalty J , Helsel WE , Kammerer WG , Boehm JE , Dwyer DM , Howe WR Jr , Joseph D , Lane DS , Laughlin M , Leypoldt M , Marroulis SC , Mattingly CA , Nadel MR , Phillips-Angeles E , Rockwell TJ , Ryerson AB , Tangka FK . Cancer 2013 119 Suppl 15 2820-33 BACKGROUND: Colorectal cancer remains the second leading cause of cancer-related deaths among US men and women. Screening rates have been slow to increase, and disparities in screening remain. METHODS: To address the disparity in screening for this high burden but largely preventable disease, the Centers for Disease Control and Prevention (CDC) designed and established a 4-year Colorectal Cancer Screening Demonstration Program (CRCSDP) in 2005 for low-income, under-insured or uninsured men and women aged 50 to 64 years in 5 participating US program sites. In this report, the authors describe the design of the CRCSDP and the overall clinical findings and screening test performance characteristics, including the positive fecal occult blood testing (FOBT) rate; the rates of polyp, adenoma, and cancer detection with FOBTs and colonoscopies; and the positive predicative value for polyps, adenomas, and cancers. RESULTS: In total, 5233 individuals at average risk and increased risk were screened for colorectal cancer across all 5 sites, including 44% who underwent screening FOBT and 56% who underwent screening colonoscopy. Overall, 77% of all individuals screened were women. The FOBT positivity rate was 10%. Results from all screening or diagnostic colonoscopies indicated that 75% had negative results and required a repeat screening colonoscopy in 10 years, 16% had low-risk adenomas and required surveillance colonoscopy in 5 to 10 years, 8% had high-risk adenomas and required surveillance colonoscopy in 3 years, and 0.6% had invasive cancers. CONCLUSIONS: This report documents the successes and challenges in implementing the CDC's CRCSDP and describes the clinical outcomes of this 4-year initiative, the patterns in program uptake and test choice, and the comparative test performance characteristics of FOBT versus colonoscopy. Patterns in final outcomes from the follow-up of positive screening tests were consistent with national registry data. |
Prevalence and predictors of children's dietary supplement use: the 2007 National Health Interview Survey
Dwyer J , Nahin RL , Rogers GT , Barnes PM , Jacques PM , Sempos CT , Bailey R . Am J Clin Nutr 2013 97 (6) 1331-7 BACKGROUND: Little is known about the characteristics of US children who are dietary supplement users. OBJECTIVE: We described the prevalence and predictors of and reasons for giving children dietary supplements. DESIGN: The study included children <18 y of age who participated in the Complementary and Alternative Medicine supplement of the National Health Interview Survey of 2007 whose proxies provided complete information on child dietary supplement use. RESULTS: A total of 37% of subjects used dietary supplements, 31% of subjects used multivitamin mineral (MVM) products exclusively, 4% of subjects used single vitamins or minerals solely or in combination with MVMs, and 2% of subjects used nonvitamin, nonmineral products either solely or in combination with other supplements. Users were more likely than nonusers to be Asian, white, or non-Hispanic; belong to families with higher parental education and income levels; reside in areas other than the South; be in good, very good, or excellent health; have private health insurance; and have a usual place at which they received conventional medical care. Children (3%) with the most disease burden and health care were more likely to use supplements than were healthier children. Supplements were given for the prevention or treatment of many illnesses and conditions. Neither the caregiver's reasons nor specific supplements used were consistently associated with particular conditions. CONCLUSIONS: The 37% of US children who used any type of dietary supplements differed from nonusers in family socioeconomic status and many other health-related characteristics. Users were given supplements to prevent or treat many illnesses and conditions for which there is only limited evidence of their efficacy. |
The prevalence of using iodine-containing supplements is low among reproductive-age women, National Health and Nutrition Examination Survey 1999-2006
Gahche JJ , Bailey RL , Mirel LB , Dwyer JT . J Nutr 2013 143 (6) 872-7 During pregnancy, the iodine requirement rises to meet demands for neurological development and fetal growth. If these requirements are not met, irreversible pathological cognitive and behavioral changes to the fetus may ensue. This study estimated the prevalence of iodine-containing dietary supplement (DS) use and intakes of iodine from DSs among pregnant women and nonpregnant women of reproductive age (15-39 y) who were interviewed and examined in NHANES 1999-2006 (n = 6404). Although 77.5% of pregnant women reported taking one or more DSs in the past 30 d, only 22.3% consumed an iodine-containing supplement. Most pregnant women reported using one DS and reported taking this product daily. The vast majority of iodine-containing DSs reported by pregnant women claimed an iodine content of 150 mcg iodine/serving on the label. Pregnant women using at least one DS containing iodine had a mean daily iodine intake of 122 mcg/d from supplements; the median value was 144 mcg/d. Median urinary iodine concentrations (UICs) were similar for pregnant and nonpregnant women in the population aged 15-39 y. The median UIC was 148 mcg/L for pregnant women and 133 mcg/L for nonpregnant women. The WHO has established a cutoff for insufficient iodine intake at <150 mcg/L for pregnant women and <100 mg/L for those who are not pregnant. This suggests that as a population, we may not be meeting adequate intakes of iodine for pregnant women. More research is needed on the iodine intakes of pregnant women and women of reproductive age on their total iodine intake from all sources, not just DSs. |
Why US adults use dietary supplements
Bailey RL , Gahche JJ , Miller PE , Thomas PR , Dwyer JT . JAMA Intern Med 2013 173 (5) 355-61 BACKGROUND: Dietary supplements are used by more than half of adults, although to our knowledge, the reasons motivating use have not been previously examined in US adults using nationally representative data. The purpose of this analysis was to examine motivations for dietary supplement use, characterize the types of products used for the most commonly reported motivations, and to examine the role of physicians and health care practitioners in guiding choices about dietary supplements. METHODS: Data from adults (≥20 years; n = 11 956) were examined in the 2007-2010 National Health and Nutrition Examination Survey, a nationally representative, cross-sectional, population-based survey. RESULTS: The most commonly reported reasons for using supplements were to "improve" (45%) or "maintain" (33%) overall health. Women used calcium products for "bone health" (36%), whereas men were more likely to report supplement use for "heart health or to lower cholesterol" (18%). Older adults (≥60 years) were more likely than younger individuals to report motivations related to site-specific reasons like heart, bone and joint, and eye health. Only 23% of products were used based on recommendations of a health care provider. Multivitamin-mineral products were the most frequently reported type of supplement taken, followed by calcium and omega-3 or fish oil supplements. Supplement users are more likely to report very good or excellent health, have health insurance, use alcohol moderately, eschew cigarette smoking, and exercise more frequently than nonusers. CONCLUSIONS: Supplement users reported motivations related to overall health more commonly than for supplementing nutrients from food intakes. Use of supplements was related to more favorable health and lifestyle choices. Less than a quarter of supplements used by adults were recommended by a physician or health care provider. |
The association between serum biomarkers and disease outcome in influenza A(H1N1)pdm09 virus infection: results of two international observational cohort studies
Davey RT Jr , Lynfield R , Dwyer DE , Losso MH , Cozzi-Lepri A , Wentworth D , Lane HC , Dewar R , Rupert A , Metcalf JA , Pett SL , Uyeki TM , Bruguera JM , Angus B , Cummins N , Lundgren J , Neaton JD . PLoS One 2013 8 (2) e57121 BACKGROUND: Prospective studies establishing the temporal relationship between the degree of inflammation and human influenza disease progression are scarce. To assess predictors of disease progression among patients with influenza A(H1N1)pdm09 infection, 25 inflammatory biomarkers measured at enrollment were analyzed in two international observational cohort studies. METHODS: Among patients with RT-PCR-confirmed influenza A(H1N1)pdm09 virus infection, odds ratios (ORs) estimated by logistic regression were used to summarize the associations of biomarkers measured at enrollment with worsened disease outcome or death after 14 days of follow-up for those seeking outpatient care (FLU 002) or after 60 days for those hospitalized with influenza complications (FLU 003). Biomarkers that were significantly associated with progression in both studies (p<0.05) or only in one (p<0.002 after Bonferroni correction) were identified. RESULTS: In FLU 002 28/528 (5.3%) outpatients had influenza A(H1N1)pdm09 virus infection that progressed to a study endpoint of complications, hospitalization or death, whereas in FLU 003 28/170 (16.5%) inpatients enrolled from the general ward and 21/39 (53.8%) inpatients enrolled directly from the ICU experienced disease progression. Higher levels of 12 of the 25 markers were significantly associated with subsequent disease progression. Of these, 7 markers (IL-6, CD163, IL-10, LBP, IL-2, MCP-1, and IP-10), all with ORs for the 3 versus 1 tertile of 2.5 or greater, were significant (p<0.05) in both outpatients and inpatients. In contrast, five markers (sICAM-1, IL-8, TNF-alpha, D-dimer, and sVCAM-1), all with ORs for the 3 versus 1 tertile greater than 3.2, were significantly (p≤.002) associated with disease progression among hospitalized patients only. CONCLUSIONS: In patients presenting with varying severities of influenza A(H1N1)pdm09 virus infection, a baseline elevation in several biomarkers associated with inflammation, coagulation, or immune function strongly predicted a higher risk of disease progression. It is conceivable that interventions designed to abrogate these baseline elevations might affect disease outcome. |
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