Last data update: Sep 30, 2024. (Total: 47785 publications since 2009)
Records 1-27 (of 27 Records) |
Query Trace: Kohn W[original query] |
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Should we be testing for Mycoplasma genitalium on initial presentation? Trends in persistent/recurrent urethritis among men presenting for care in STD clinics, 2015-2019, STD Surveillance Network (SSuN)
Llata E , Tromble E , Schumacher C , Huspeni D , Asbel L , Pathela P , Kohn R , Kerani RP , Barbee L , Bachmann L . Sex Transm Dis 2024 51 (7) 493-498 BACKGROUND: Mycoplasma genitalium is a major contributor to persistent/recurrent urethritis cases. However, there are limited published studies on recent trends of persistent/recurrent urethritis. METHODS: A retrospective analysis was conducted of men presenting with symptomatic urethritis in 16 sexually transmitted disease (STD) clinics from 2015 to 2019. Poisson regression was used to assess trends in the annual proportions of urethritis episodes with follow-up (FU) characterized with persistent/recurrent urethritis symptoms. Results were also stratified by results of chlamydia (CT) and gonorrhea (NG) testing and treatment prescribed. RESULTS: There were 99,897 urethritis episodes, from 67,546 unique men. The proportion of episodes with persistent/recurrent symptomatic FU visits increased 50.8% over a 4-year period (annual percentage change [APC], 11.3%; 95% confidence interval [CI], 6.5-16.3). Similar trends were observed in nonchlamydial nongonococcal urethritis episodes (APC, 12.7%; 95% CI, 6.8-18.9) but increases among those positive for NG (APC, 12.1%; 95% CI, -2.3 to -28.5) or for CT (APC, 7.3%; 95% CI, -6.7 to 23.5) were not statistically significant. Among episodes who received azithromycin as first-line treatment, increases in the proportion of persistent/recurrent FU visits were observed (APC, 12.6%; 95% CI, 8.6-16.7). For episodes where first-line treatment was doxycycline, no significant increases were detected (APC, 4.3%; 95% CI, -0.3 to 9.2). CONCLUSIONS: We found an increase in the proportion of urethritis episodes with persistent or recurrent symptoms over time. Given these observed trends in episodes negative for NG or CT, an etiology not detectable by routine diagnostics was a likely factor in increased persistence, suggesting patients with urethritis may benefit from diagnostic testing for M. genitalium during an initial symptomatic presentation. |
Effectiveness of 2 and 3 mRNA COVID-19 Vaccines Doses against Omicron and Delta-Related Outpatient Illness among Adults, October 2021 - February 2022 (preprint)
Kim SS , Chung JR , Talbot HK , Grijalva CG , Wernli KJ , Martin ET , Monto AS , Belongia EA , McLean HQ , Gaglani M , Mamawala M , Nowalk MP , Geffel KM , Tartof SY , Florea A , Lee JS , Tenforde MW , Patel MM , Flannery B , Bentz ML , Burgin A , Burroughs M , Davis ML , Howard D , Lacek K , Madden JC , Nobles S , Padilla J , Sheth M , Arroliga A , Beeram M , Dunnigan K , Ettlinger J , Graves A , Hoffman E , Jatla M , McKillop A , Murthy K , Mutnal M , Priest E , Raiyani C , Rao A , Requenez L , Settele N , Smith M , Stone K , Thomas J , Volz M , Walker K , Zayed M , Annan E , Daley P , Kniss K , Merced-Morales A , Ayala E , Amundsen B , Aragones M , Calderon R , Hong V , Jimenez G , Kim J , Ku J , Lewin B , McDaniel A , Reyes A , Shaw S , Takhar H , Torres A , Burganowski R , Kiniry E , Moser KA , Nguyen M , Park S , Wellwood S , Wickersham B , Alvarado-Batres J , Benz S , Berger H , Bissonnette A , Blake J , Boese K , Botten E , Boyer J , Braun M , Breu B , Burbey G , Cravillion C , Delgadillo C , Donnerbauer A , Dziedzic T , Eddy J , Edgren H , Ermeling A , Ewert K , Fehrenbach C , Fernandez R , Frome W , Guzinski S , Heeren L , Herda D , Hertel M , Heuer G , Higdon E , Ivacic L , Jepsen L , Kaiser S , Karl J , Keffer B , King J , Koepel TK , Kohl S , Kohn S , Kohnhorst D , Kronholm E , Le T , Lemieux A , Marcis C , Maronde M , McCready I , McGreevey K , Meece J , Mehta N , Miesbauer D , Moon V , Moran J , Nikolai C , Olson B , Olstadt J , Ott L , Pan N , Pike C , Polacek D , Presson M , Price N , Rayburn C , Reardon C , Rotar M , Rottscheit C , Salzwedel J , Saucedo J , Scheffen K , Schug C , Seyfert K , Shrestha R , Slenczka A , Stefanski E , Strupp M , Tichenor M , Watkins L , Zachow A , Zimmerman B , Bauer S , Beney K , Cheng CK , Faraj N , Getz A , Grissom M , Groesbeck M , Harrison S , Henson K , Jermanus K , Johnson E , Kaniclides A , Kimberly A , Lamerato LE , Lauring A , Lehmann-Wandell R , McSpadden EJ , Nabors L , Truscon R , Balasubramani GK , Bear T , Bobeck J , Bowser E , Clarke K , Clarke LG , Dauer K , Deluca C , Dierks B , Haynes L , Hickey R , Johnson M , Jonsson A , Luosang N , McKown L , Peterson A , Phaturos D , Rectenwald A , Sax TM , Stiegler M , Susick M , Suyama J , Taylor L , Walters S , Weissman A , Williams JV , Blair M , Carter J , Chappell J , Copen E , Denney M , Graes K , Halasa N , Lindsell C , Liu Z , Longmire S , McHenry R , Short L , Tan HN , Vargas D , Wrenn J , Wyatt D , Zhu Y . medRxiv 2022 10 Background: We estimated SARS-CoV-2 Delta and Omicron-specific effectiveness of 2 and 3 mRNA COVID-19 vaccine doses in adults against symptomatic illness in US outpatient settings. Method(s): Between October 1, 2021, and February 12, 2022, research staff consented and enrolled eligible participants who had fever, cough, or loss of taste or smell and sought outpatient medical care or clinical SARS-CoV-2 testing within 10 days of illness onset. Using the test-negative design, we compared the odds of receiving 2 or 3 mRNA COVID-19 vaccine doses among SARS-CoV-2 cases versus controls using logistic regression. Regression models were adjusted for study site, age, onset week, and prior SARS-CoV-2 infection. Vaccine effectiveness (VE) was calculated as (1 - adjusted odds ratio) x 100%. Result(s): Among 3847 participants included for analysis, 574 (32%) of 1775 tested positive for SARS-CoV-2 during the Delta predominant period and 1006 (56%) of 1794 participants tested positive during the Omicron predominant period. When Delta predominated, VE against symptomatic illness in outpatient settings was 63% (95% CI: 51% to 72%) among mRNA 2-dose recipients and 96% (95% CI: 93% to 98%) for 3-dose recipients. When Omicron predominated, VE was 21% (95% CI: -6% to 41%) among 2-dose recipients and 62% (95% CI: 48% to 72%) among 3-dose recipients. Conclusion(s): In this adult population, 3 mRNA COVID-19 vaccine doses provided substantial protection against symptomatic illness in outpatient settings when the Omicron variant became the predominant cause of COVID-19 in the U.S. These findings support the recommendation for a 3rd mRNA COVID-19 vaccine dose. Copyright The copyright holder for this preprint is the author/funder, who has granted medRxiv a license to display the preprint in perpetuity. This article is a US Government work. It is not subject to copyright under 17 USC 105 and is also made available for use under a CC0 license. |
Presumptive and follow up treatment associated with gonorrhea and chlamydia testing episodes in STD clinics: Impact of changing treatment guidelines for gonorrhea, STD Surveillance Network, 2015- 2018
Llata E , Braxton J , Asbel L , Huspeni D , Tourdot L , Kerani RP , Cohen S , Kohn R , Schumacher C , Toevs K , Torrone E , Kreisel K . Sex Transm Dis 2022 50 (1) 5-10 BACKGROUND: CDC recommendation for treatment of uncomplicated gonorrhea (NG) were revised in December 2020 and include ceftriaxone monotherapy when chlamydial infection was excluded. We evaluated the impact of these revised treatment recommendations using data from a network of STD clinics prior to the change in guidelines. METHODS: We performed a cross-sectional analysis from 8 STD clinics participating in the STD Surveillance Network from Jan 2015-June 2018 assessing gonorrhea/chlamydia (CT) testing episodes, NAAT results, CT only and NG/CT treatment records, and timing of treatment. We describe the frequency of NG and CT treatment practices and what proportion of patients treated would not have had to receive an anti-chlamydial agent. RESULTS: Of 190,589 episodes that occurred during the study period, 67,895 (35.6%) episodes were associated with a treatment record consistent with gonorrhea and/or chlamydia (CT only (n = 37,530) or NG/CT (n = 30,365)), most (~86%) were prescribed on the same-day as initial testing. Of the 67,895 episodes with corresponding treatment record(s), 42.1% were positive for either NG or CT compared to 3.7% were positive for NG or CT for those not associated with treatment records (n = 122,694 episodes). Among 30,365 episodes associated with NG/CT treatment records, monotherapy would only have been indicated for 10.1% (3,081/30,365) of the episodes as they were treated on follow-up and were NG positive and CT negative. CONCLUSIONS: Treatment was prescribed in one third of NG/CT testing episodes, with the majority provided same day. Despite changes in NG treatment guidelines to ceftriaxone monotherapy, majority of patients would continue to receive an anti-chlamydia agent when treated for gonorrhea in these settings. |
Antimicrobial susceptibility of urogenital and extragenital neisseria gonorrhoeae isolates among men who have sex with men - SURRG and eGISP, 2018-2019
Quilter LAS , St Cyr SB , Hong J , Asbel L , Bautista I , Carter B , Casimir Y , Denny M , Ervin M , Gomez R , Harvey A , Holderman JL , Johnson K , Kohn RP , Learner ER , Mauk K , Menza T , Mettenbrink C , Nettleton WD , Nicosia KR , Pham CD , Ried C , Schlanger K , Schneider A , Soge OO , Tabidze I , Taylor SN , Tilghman W , Toler C , Weinstock H , Torrone EA . Sex Transm Dis 2021 48 S111-S117 BACKGROUND: We investigated differences in gonococcal antimicrobial susceptibility by anatomic site among cisgender men who have sex with men (MSM) using specimens collected through CDC's enhanced Gonococcal Isolate Surveillance Project (eGISP) and Strengthening the U.S. Response to Resistant Gonorrhea (SURRG). METHODS: During January 1, 2018-December 31, 2019, 12 eGISP and 8 SURRG sites collected urogenital, pharyngeal, and rectal isolates from cisgender MSM in STD clinics. Gonococcal isolates were sent to regional laboratories for antimicrobial susceptibility testing by agar dilution. To account for correlated observations, linear mixed-effects models were used to calculate geometric mean minimum inhibitory concentrations (MICs) and mixed-effects logistic regression models were used to calculate the proportion of isolates with elevated or resistant MICs; comparisons were made across anatomic sites. RESULTS: Participating clinics collected 3,974 urethral, 1,553 rectal, and 1,049 pharyngeal isolates from 5,456 unique cisgender MSM. There were no significant differences in the geometric mean MICs for azithromycin, ciprofloxacin, penicillin, and tetracycline by anatomic site. For cefixime and ceftriaxone, geometric mean MICs for pharyngeal isolates were higher compared to anogenital isolates (p < 0.05). The proportion of isolates with elevated ceftriaxone MICs (≥0.125 μg/ml) at the pharynx (0.67%) was higher than at rectal (0.13%) and urethral (0.18%) sites (p < 0.05). CONCLUSIONS: Based on data collected from multi-jurisdictional sentinel surveillance projects, antimicrobial susceptibility patterns of N. gonorrhoeae isolates may differ among MSM at extragenital sites, particularly at the pharynx. Continued investigation into gonococcal susceptibility patterns by anatomic site may be an important strategy to monitor and detect the emergence of antimicrobial resistant gonorrhea over time. |
Test of cure return rate and test positivity, Strengthening the U.S Response to Resistant Gonorrhea (SURRG), United States, 2018-2019
Schlanger K , Mauk K , Learner ER , Schillinger JA , Nishiyama M , Kohn R , Thibault C , Hermus H , Dewater J , Pabon V , Black J , St Cyr S , Pham CR , Kirkcaldy RD . Sex Transm Dis 2021 48 S167-S173 BACKGROUND: Reduced antibiotic susceptibility (RS) in Neisseria gonorrhoeae (GC) may increase treatment failure. Conducting tests-of-cure (TOC) for patients with RS-GC may facilitate identification of treatment failures. METHODS: We examined 2018-2019 data from eight jurisdictions participating in CDC's Strengthening U.S. Response to Resistant Gonorrhea project. Jurisdictions collected GC isolates and epidemiological data from patients and performed antimicrobial susceptibility testing. Minimum inhibitory concentrations of ceftriaxone ≥0.125 μg/mL, cefixime ≥0.250 μg/mL, or azithromycin ≥2.0 μg/mL were defined as RS. Patients with RS-infections were asked to return for a TOC 8-10 days post-treatment. We calculated a weighted TOC return rate and described time to TOC and suspected reasons for any positive TOC results. RESULTS: Overall, 1,165 patients were diagnosed with RS-infections. Over half returned for TOC (weighted TOC: 61% [95% confidence interval: 50.1%-72.6%], range by jurisdiction: 32%-80%). TOC rates were higher among asymptomatic (68%) than symptomatic patients (53%, p = 0.001), and MSM (62%) compared to MSW (50%; p < 0.001). Median time between treatment and TOC was 12 days (interquartile range: 9-16). Of the 31 (4.5%) TOC patients with positive results, 13 (42%) were suspected due to reinfection and 11 (36%) due to false positive results. There were no treatment failures suspected to be due to RS-GC. CONCLUSIONS: Most patients with a RS-infection returned for a TOC, though return rates varied by jurisdiction and patient characteristics. TOC can identify and facilitate treatment of reinfections, but false positive TOC results may complicate interpretation and clinical management. |
TIPICO X: report of the 10th interactive infectious disease workshop on infectious diseases and vaccines
Rivero-Calle I , Gómez-Rial J , Bont L , Gessner BD , Kohn M , Dagan R , Payne DC , Bruni L , Pollard AJ , García-Sastre A , Faustman DL , Osterhaus A , Butler R , Giménez Sánchez F , Álvarez F , Kaforou M , Bello X , Martinón-Torres F . Hum Vaccin Immunother 2021 17 (3) 759-772 TIPICO is an expert meeting and workshop that aims to provide the most recent evidence in the field of infectious diseases and vaccination. The 10th Interactive Infectious Disease TIPICO workshop took place in Santiago de Compostela, Spain, on November 21-22, 2019. Cutting-edge advances in vaccination against respiratory syncytial virus, Streptococcus pneumoniae, rotavirus, human papillomavirus, Neisseria meningitidis, influenza virus, and Salmonella Typhi were discussed. Furthermore, heterologous vaccine effects were updated, including the use of Bacillus Calmette-Guérin (BCG) vaccine as potential treatment for type 1 diabetes. Finally, the workshop also included presentations and discussion on emergent virus and zoonoses, vaccine resilience, building and sustaining confidence in vaccination, approaches to vaccine decision-making, pros and cons of compulsory vaccination, the latest advances in decoding infectious diseases by RNA gene signatures, and the application of big data approaches. |
Adoption and implementation of evidence-based colorectal cancer screening interventions among cancer control program grantees, 2009-2015
Hannon PA , Maxwell AE , Escoffery C , Vu T , Kohn MJ , Gressard L , Dillon-Sumner L , Mason C , DeGroff A . Prev Chronic Dis 2019 16 E139 PURPOSE AND OBJECTIVES: Colorectal cancer (CRC) is the second-leading cause of cancer death in the United States. Although effective CRC screening tests exist, CRC screening is underused. Use of evidence-based interventions (EBIs) to increase CRC screening could save many lives. The Colorectal Cancer Control Program (CRCCP) of the Centers for Disease Control and Prevention (CDC) provides a unique opportunity to study EBI adoption, implementation, and maintenance. We assessed 1) the number of grantees implementing 5 EBIs during 2011 through 2015, 2) grantees' perceived ease of implementing each EBI, and 3) grantees' reasons for stopping EBI implementation. INTERVENTION APPROACH: CDC funded 25 states and 4 tribal entities to participate in the CRCCP. Grantees used CRCCP funds to 1) provide CRC screening to individuals who were uninsured and low-income, and 2) promote CRC screening at the population level. One component of the CRC screening promotion effort was implementing 1 or more of 5 EBIs to increase CRC screening rates. EVALUATION METHODS: We surveyed CRCCP grantees about EBI implementation with an online survey in 2011, 2012, 2013, and 2015. We conducted descriptive analyses of closed-ended items and coded open-text responses for themes related to barriers and facilitators to EBI implementation. RESULTS: Most grantees implemented small media (>/=25) or client reminders (>/=21) or both all program years. Although few grantees reported implementation of EBIs such as reducing structural barriers (n = 14) and provider reminders (n = 9) in 2011, implementation of these EBIs increased over time. Implementation of provider assessment and feedback increased over time, but was reported by the fewest grantees (n = 17) in 2015. Reasons for discontinuing EBIs included funding ending, competing priorities, or limited staff capacity. IMPLICATIONS FOR PUBLIC HEALTH: CRCCP grantees implemented EBIs across all years studied, yet implementation varied by EBI and did not get easier with time. Our findings can inform long-term planning for EBIs with state and tribal public health institutions and their partners. |
Trends in the prevalence of anogenital warts among patients at sexually transmitted disease clinics - Sexually Transmitted Disease Surveillance Network, United States, 2010-2016
Mann LM , Llata E , Flagg EW , Hong J , Asbel L , Carlos-Henderson J , Kerani RP , Kohn R , Pathela P , Schumacher C , Torrone EA . J Infect Dis 2019 219 (9) 1389-1397 BACKGROUND: Approximately 90% of genital warts are caused by human papillomavirus (HPV) types 6 and 11. In the United States, HPV vaccination has been recommended for girls and women aged </=26 years, and since 2011, for boys and men aged </=21 years and for gay, bisexual, and other men who have sex with men (MSM) aged </=26 years. METHODS: Data were obtained from 27 clinics participating in the STD Surveillance Network. Trends in the annual prevalence of anogenital warts (AGW) from 2010-2016 were described by sex and by the sex of sex partners. RESULTS: During 2010-2016, significant declines in the prevalence of AGW were observed in women aged <40 years, men who have sex with women only (MSW) aged <40 years, and MSM of all age categories. An inflection in trend in 2012 was noted for MSW aged 20-24 or 25-29 years and for MSM aged 20-24 years. CONCLUSIONS: The observed declines in the prevalence of AGW suggest that HPV morbidity is declining among populations attending STD clinics, including MSW, MSM, and women. Declines in younger age groups are consistent with what would be expected following the implementation of HPV vaccination. However, declines were also observed in older age groups and are not likely to be the result of vaccination. |
Chlamydia, gonorrhea, and HIV infection among transgender women and transgender men attending clinics that provide STD services in six US cities: Results from the STD Surveillance Network
Pitasi MA , Kerani RP , Kohn R , Murphy RD , Pathela P , Schumacher CM , Tabidze I , Llata E . Sex Transm Dis 2018 46 (2) 112-117 BACKGROUND: Transgender women and transgender men are disproportionately affected by HIV infection and may be vulnerable to other STDs, but the lack of surveillance data inclusive of gender identity hinders prevention and intervention strategies. METHODS: We analyzed data from 506 transgender women (1,045 total visits) and 120 transgender men (209 total visits) who attended 26 publicly funded clinics that provide STD services in six US cities during a 3.5-year observation period. We used clinical and laboratory data to examine the proportion of transgender women and transgender men who tested positive for urogenital and extragenital chlamydial or gonococcal infections and who self-reported or tested positive for HIV infection during the observation period. RESULTS: Of the transgender women tested, 13.1% tested positive for chlamydia and 12.6% tested positive for gonorrhea at one or more anatomic sites, and 14.2% were HIV-infected. Of transgender men tested, 7.7% and 10.5% tested positive for chlamydia and gonorrhea at one or more anatomic sites, and 8.3% were HIV-infected., Most transgender women (86.0% and 80.9%, respectively) and more than a quarter of transgender men (28.6% and 28.6%, respectively) with an extragenital chlamydial or gonococcal infection had a negative urogenital test at the same visit. CONCLUSIONS: Publicly funded clinics providing STD services are likely an important source of STD care for transgender persons. More data are needed to understand the most effective screening approaches for urogenital, rectal, and pharyngeal CT and GC infections in transgender populations. |
Historical and current trends in the epidemiology of early syphilis in San Francisco, 1955-2016
Nguyen TQ , Kohn RP , Chew Ng R , Philip SS , Cohen SE . Sex Transm Dis 2018 45 S55-S62 BACKGROUND: Seventeen years into a sustained epidemic, early syphilis (ES) rates in San Francisco (SF) are continuing to increase and the demographics of the affected population are changing. We provide a historical overview of ES in SF among men who have sex with men (MSM) and describe trends in the epidemiology and disease investigation outcomes. METHODS: We examined data from the SF Department of Public Health's patient-based registry of integrated STD surveillance, clinical, and field investigation data to describe demographic and behavioral characteristics of ES cases, as well as outcomes of syphilis partner services. Chi-square tests were performed to examine categorical differences across time periods. Analysis of variance was used to examine differences in continuous variables. RESULTS: In 2016, 1095 ES cases were reported among males in SF, a 219% increase from the 343 cases identified 10 years ago. Between 1996-99 and 2010-16, an increasing proportion of ES cases were among MSM younger than 25 years, non-white, and HIV-negative (P<.05). A decreasing proportion of ES cases were assigned for Partner Services (PS), among whom a smaller proportion of reported sex partners were identified by name, resulting in an overall decline in the proportion of cases who had at least one named partner treated as a result of PS (Disease Investigation Rate) from 30.5 in 2000-2004 to 14.8 in 2010-2016. CONCLUSIONS: Syphilis case rates continue to increase in SF and the epidemic is expanding beyond a core population. Additional resources and innovative prevention approaches are needed to reduce the burden of syphilis among MSM. |
Network-centric interventions to contain the syphilis epidemic in San Francisco
Juher D , Saldana J , Kohn R , Bernstein K , Scoglio C . Sci Rep 2017 7 (1) 6464 The number of reported early syphilis cases in San Francisco has increased steadily since 2005. It is not yet clear what factors are responsible for such an increase. A recent analysis of the sexual contact network of men who have sex with men with syphilis in San Francisco has discovered a large connected component, members of which have a significantly higher chance of syphilis and HIV compared to non-member individuals. This study investigates whether it is possible to exploit the existence of the largest connected component to design new notification strategies that can potentially contribute to reducing the number of cases. We develop a model capable of incorporating multiple types of notification strategies and compare the corresponding incidence of syphilis. Through extensive simulations, we show that notifying the community of the infection state of few central nodes appears to be the most effective approach, balancing the cost of notification and the reduction of syphilis incidence. Additionally, among the different measures of centrality, the eigenvector centrality reveals to be the best to reduce the incidence in the long term as long as the number of missing links (non-disclosed contacts) is not very large. |
Increases in the rate of Neisseria gonorrhoeae among gay, bisexual and other men who have sex with men-findings from the Sexually Transmitted Disease Surveillance Network 2010-2015
Stenger MR , Pathela P , Anschuetz G , Bauer H , Simon J , Kohn R , Schumacher C , Torrone E . Sex Transm Dis 2017 44 (7) 393-397 BACKGROUND: Inequalities in Neisseria gonorrhoeae (gonorrhea) burden by sexual minority status in the United States are difficult to quantify. Sex of sex partner is not routinely collected for reported cases. Population estimates of men who have sex with men (MSM) necessary to calculate case rates have not been available until recently. For these reasons, trends in reported gonorrhea rates among MSM have not been described across multiple jurisdictions. METHODS: We estimated of the number of MSM cases reported in 6 jurisdictions continuously participating in the STD Surveillance Network 2010-2015 based on interviews with a random sample of cases. Data were obtained for Baltimore, Philadelphia, New York City, San Francisco, California (excluding San Francisco), and Washington State. Estimates of the MSM, heterosexual male (MSW) and female populations were obtained from recently published estimates and census data. Case rates and rate-ratios were calculated comparing trends in reported cases among MSM, heterosexual males and women. RESULTS: The proportion of male gonorrhea cases among MSM varied by jurisdiction (range: 20% to 98%). Estimated MSM rate increased from 1369 cases per 100,000 in 2010 to 3435 cases per 100,000 in 2015. Between 2010 and 2015, the MSM-to-Women gonorrhea rate ratio increased from 13:1 to 24:1, and the MSM-to-MSW gonorrhea rate ratio increased from 16:1 to 31:1. CONCLUSIONS: Estimated gonorrhea rate among MSM increased in a network of 6 geographically diverse US jurisdictions. Estimating the size of this population, determining MSM among reported cases and estimating rates are essential first steps for better understanding the changing epidemiology of gonorrhea. |
Employers' views on influenza and tetanus-diphtheria-pertussis vaccination in the workplace
Graves MC , Harris JR , Kohn M , Hannon PA , Lichiello PA , Martin DP , Ahmed F . J Occup Environ Med 2016 58 (4) e157-8 Readers are invited to submit letters for publication in this department. Submit letters online at http://joem.edmgr.com. Choose “Submit New Manuscript.” A signed copyright assignment and financial disclosure form must be submitted with the letter. Form available at www.joem.org under Author and Reviewer information. | The Centers for Disease Control and Prevention (CDC) recommends influenza vaccination for all those over 6 months of age, but recent adult vaccination rates are only about 40%.1,2 Likewise, although the CDC recommends vaccination with the tetanus, diphtheria, and pertussis (Tdap) vaccine for all adults,3–5 about 8.0% had ever received it 2010,6 with only modest increases reported through 2013.6 | Low adult vaccination rates for influenza and Tdap are missed opportunities to prevent disease, contain health care costs, and maintain employee productivity. For those 18 to 64 years of age, annual influenza-related health care costs are estimated at $4.6 billion7 and an estimated 16.8 million days of productivity are lost annually.7 Pertussis incidence is on the rise, with 10.4 cases per 100,000 in 2014.8 Between 65% and 78% of adults with pertussis miss work,5 missing 9.8 days on average.9 |
Screening yield of HIV antigen/antibody combination and pooled HIV RNA testing for acute HIV infection in a high-prevalence population
Peters PJ , Westheimer E , Cohen S , Hightow-Weidman LB , Moss N , Tsoi B , Hall L , Fann C , Daskalakis DC , Beagle S , Patel P , Radix A , Foust E , Kohn RP , Marmorino J , Pandori M , Fu J , Samandari T , Gay CL . JAMA 2016 315 (7) 682-90 IMPORTANCE: Although acute HIV infection contributes disproportionately to onward HIV transmission, HIV testing has not routinely included screening for acute HIV infection. OBJECTIVE: To evaluate the performance of an HIV antigen/antibody (Ag/Ab) combination assay to detect acute HIV infection compared with pooled HIV RNA testing. DESIGN, SETTING, AND PARTICIPANTS: Multisite, prospective, within-individual comparison study conducted between September 2011 and October 2013 in 7 sexually transmitted infection clinics and 5 community-based programs in New York, California, and North Carolina. Participants were 12 years or older and seeking HIV testing, without known HIV infection. EXPOSURES: All participants with a negative rapid HIV test result were screened for acute HIV infection with an HIV Ag/Ab combination assay (index test) and pooled human immunodeficiency virus 1 (HIV-1) RNA testing. HIV RNA testing was the reference standard, with positive reference standard result defined as detectable HIV-1 RNA on an individual RNA test. MAIN OUTCOMES AND MEASURES: Number and proportion with acute HIV infections detected. RESULTS: Among 86,836 participants with complete test results (median age, 29 years; 75.0% men; 51.8% men who have sex with men), established HIV infection was diagnosed in 1158 participants (1.33%) and acute HIV infection was diagnosed in 168 participants (0.19%). Acute HIV infection was detected in 134 participants with HIV Ag/Ab combination testing (0.15% [95% CI, 0.13%-0.18%]; sensitivity, 79.8% [95% CI, 72.9%-85.6%]; specificity, 99.9% [95% CI, 99.9%-99.9%]; positive predictive value, 59.0% [95% CI, 52.3%-65.5%]) and in 164 participants with pooled HIV RNA testing (0.19% [95% CI, 0.16%-0.22%]; sensitivity, 97.6% [95% CI, 94.0%-99.4%]; specificity, 100% [95% CI, 100%-100%]; positive predictive value, 96.5% [95% CI, 92.5%-98.7%]; sensitivity comparison, P < .001). Overall HIV Ag/Ab combination testing detected 82% of acute HIV infections detectable by pooled HIV RNA testing. Compared with rapid HIV testing alone, HIV Ag/Ab combination testing increased the relative HIV diagnostic yield (both established and acute HIV infections) by 10.4% (95% CI, 8.8%-12.2%) and pooled HIV RNA testing increased the relative HIV diagnostic yield by 12.4% (95% CI, 10.7%-14.3%). CONCLUSIONS AND RELEVANCE: In a high-prevalence population, HIV screening using an HIV Ag/Ab combination assay following a negative rapid test detected 82% of acute HIV infections detectable by pooled HIV RNA testing, with a positive predictive value of 59%. Further research is needed to evaluate this strategy in lower-prevalence populations and in persons using preexposure prophylaxis for HIV prevention. |
IUD services among primary care practices in New York City
Jacobson L , Garbers S , Helmy H , Roobol H , Kohn JE , Kavanaugh ML . Contraception 2015 93 (3) 257-62 OBJECTIVE: Intrauterine devices (IUDs) are one of the most effective forms of reversible contraception and can reduce unintended pregnancy rates. We explored practice characteristics associated with IUD services across a network of primary care practices in New York City during 2010-2013. STUDY DESIGN: Data were extracted from electronic health records (EHRs) for 253 primary care practices participating in an EHR quality improvement program in New York City. We used diagnostic and procedure codes to count IUD insertions and removals among females aged 10-49 years during 2010-2013. Logistic regression models predicted the likelihood of IUD insertion, removal, or no activity for 2013, based on practice characteristics. We stratified trends in IUD services over time by practice type and specialty. RESULTS: From 2010-2013, the proportion of practices that inserted IUDs increased slightly from 4.7% to 6.3% (p=0.17) and the proportion removing IUDs increased from 8.3% to 12.3% (p<0.01). More than 60% of OB/GYNs and midwives performed insertions or removals each year; fewer than 10% of internal medicine and pediatric providers did so. Community health centers had higher odds of performing removals than independent practices (AOR=10.24, 95% CI: 3.37-31.17). Practices seeing >66% female patients had higher odds of performing both insertions and removals. CONCLUSIONS: From 2010-2013, IUD services increased but remained low among primary care practices in this network. Provider training and system readiness programs should include independent primary care practices, which rarely provide IUDs, to ensure women can receive IUDs or IUD service referrals in the primary care setting. IMPLICATIONS: Much of primary care in the United States takes place in independent practices with one or two providers. Our study of a major urban area found that these types of practices are much less likely to offer IUD services than CHCs. Ensuring that small practices know where to refer women for IUD insertion and removal services is warranted to ensure women's access to IUDs. |
Promotion and provision of colorectal cancer screening: a comparison of Colorectal Cancer Control Program grantees and nongrantees, 2011-2012
Maxwell AE , Hannon PA , Escoffery C , Vu T , Kohn M , Vernon SW , DeGroff A . Prev Chronic Dis 2014 11 E170 INTRODUCTION: Since 2009, the Centers for Disease Control and Prevention (CDC) has awarded nearly $95 million to 29 states and tribes through the Colorectal Cancer Control Program (CRCCP) to fund 2 program components: 1) providing colorectal cancer (CRC) screening to uninsured and underinsured low-income adults and 2) promoting population-wide CRC screening through evidence-based interventions identified in the Guide to Community Preventive Services (Community Guide). CRCCP is a new model for disseminating and promoting use of evidence-based interventions. If the program proves successful, CDC may adopt the model for future cancer control programs. The objective of our study was to compare the colorectal cancer screening practices of recipients of CRCCP funding (grantees) with those of nonrecipients (nongrantees). METHODS: We conducted parallel Web-based surveys in 2012 with CRCCP grantees (N = 29) and nongrantees (N = 24) to assess promotion and provision of CRC screening, including the use of evidence-based interventions. RESULTS: CRCCP grantees were significantly more likely than nongrantees to use Community Guide-recommended evidence-based interventions (mean, 3.14 interventions vs 1.25 interventions, P < .001) and to use patient navigation services (eg, transportion or language translation services) (72% vs 17%, P < .001) for promoting CRC screening. Both groups were equally likely to use other strategies. CRCCP grantees were significantly more likely to provide CRC screening than were nongrantees (100% versus 50%, P < .001). CONCLUSION: Results suggest that CRCCP funding and support increases use of evidence-based interventions to promote CRC screening, indicating the program's potential to increase population-wide CRC screening rates. |
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. |
CDC Grand Rounds: evidence-based injury prevention
Degutis LC , Sleet DA , Kohn M , Benjamin G , Cohen N , Iskander J . MMWR Morb Mortal Wkly Rep 2014 62 1048-50 Approximately 5.8 million persons die from injuries each year, accounting for 10% of all deaths worldwide. In the United States, 180,000 persons die each year from injuries, making the category the country's leading cause of death for those aged 1-44 years and the leading cause of years of potential life lost before age 65 years. Injuries also result in 2.8 million hospitalizations and 29 million emergency department visits each year in the United States. Motor vehicle crashes, falls, homicides, suicides, domestic violence, child maltreatment, and other forms of intentional and unintentional injury affect all strata of society, with widespread physical, mental, and reproductive health consequences. Injuries and violence affect not only individuals, but also families and communities, producing substantial economic and societal burdens related to health-care costs, work loss, and disruption of education. The estimated annual U.S. cost in medical expenses and lost productivity resulting from injuries is $355 billion. |
Topical fluoride for caries prevention: executive summary of the updated clinical recommendations and supporting systematic review
Weyant RJ , Tracy SL , Anselmo TT , Beltran-Aguilar ED , Donly KJ , Frese WA , Hujoel PP , Iafolla T , Kohn W , Kumar J , Levy SM , Tinanoff N , Wright JT , Zero D , Aravamudhan K , Frantsve-Hawley J , Meyer DM . J Am Dent Assoc 2013 144 (11) 1279-91 BACKGROUND: A panel of experts convened by the American Dental Association (ADA) Council on Scientific Affairs presents evidence-based clinical recommendations regarding professionally applied and prescription-strength, home-use topical fluoride agents for caries prevention. These recommendations are an update of the 2006 ADA recommendations regarding professionally applied topical fluoride and were developed by using a new process that includes conducting a systematic review of primary studies. TYPES OF STUDIES REVIEWED: The authors conducted a search of MEDLINE and the Cochrane Library for clinical trials of professionally applied and prescription-strength topical fluoride agents-including mouthrinses, varnishes, gels, foams and pastes-with caries increment outcomes published in English through October 2012. RESULTS: The panel included 71 trials from 82 articles in its review and assessed the efficacy of various topical fluoride caries-preventive agents. The panel makes recommendations for further research. PRACTICAL IMPLICATIONS: The panel recommends the following for people at risk of developing dental caries: 2.26 percent fluoride varnish or 1.23 percent fluoride (acidulated phosphate fluoride) gel, or a prescription-strength, home-use 0.05 percent fluoride gel or paste or 0.09 percent fluoride mouthrinse for patients 6 years or older. Only 2.26 percent fluoride varnish is recommended for children younger than 6 years. The strengths of the recommendations for the recommended products varied from "in favor" to "expert opinion for." As part of the evidence-based approach to care, these clinical recommendations should be integrated with the practitioner's professional judgment and the patient's needs and preferences. |
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. |
Epidemiologic characteristics of an ongoing syphilis epidemic among men who have sex with men, San Francisco
Bernstein KT , Stephens SC , Strona FV , Kohn RP , Philip SS . Sex Transm Dis 2013 40 (1) 11-7 BACKGROUND: Since 2001, San Francisco has experienced a sustained syphilis epidemic that has been nearly exclusively limited to men who have sex with men. We examined the characteristics associated with changes in the syphilis epidemic in San Francisco. METHODS: All primary and secondary (P&S) syphilis cases reported to the San Francisco Department of Public Health between 2001 and 2011 were examined using joinpoint analysis to identify periods within the broader epidemic. Characteristics of the index cases were compared across the periods using chi statistics and t tests. RESULTS: Three distinct periods were identified, an acute increase, decline, and then period of resurgence. In the most recent period of resurgence, compared with earlier periods, patients with P&S syphilis were more likely to have a prior syphilis infection, were older, were more likely to meet partners online, and were more likely to have a partner from outside San Francisco. CONCLUSIONS: In an analysis of 11 years of P&S syphilis data, several factors were associated with declines or resurgences. Innovative prevention measures are needed to reduce syphilis morbidity among men who have sex with men. |
The status of legal authority for injury prevention practice in state health departments
Stier DD , Thombley ML , Kohn MA , Jesada RA . Am J Public Health 2012 102 (6) 1067-78 Despite the potential for public health strategies to decrease the substantial burden of injuries, injury prevention infrastructure in state health departments is underdeveloped. We sought to describe the legal support for injury prevention activities at state health departments. We searched the Lexis database for state laws providing authority for those activities, and categorized the scope of those laws. Only 10 states have authority that covers the full scope of injury prevention practice; in the others, legal authority is piecemeal, nonspecific, or nonexistent. More comprehensive legal authority could help health departments access data for surveillance, work with partners, address sensitive issues, and garner funding. Efforts should be undertaken to enhance legal support for injury prevention activities across the country. |
Moving toward elimination of healthcare-associated infections: a call to action
Cardo D , Dennehy PH , Halverson P , Fishman N , Kohn M , Murphy CL , Whitley RJ , Brennan PJ , Bright J , Curry C , Graham D , Haerum B , Kainer M , Kaye K , Lundstrom T , Richards C , Tomlinson L , Skillen EL , Streed S , Young M , Septimus E . Infect Control Hosp Epidemiol 2010 31 (11) 1101-5 Jointly, the Association for Professionals in Infection Control and Epidemiology (APIC), the Society for Healthcare Epidemiology of America (SHEA), the Infectious Diseases Society of America (IDSA), the Association of State and Territorial Health Officials (ASTHO), the Council of State and Territorial Epidemiologists (CSTE), Pediatric Infectious Diseases Society (PIDS), and the Centers for Disease Control and Prevention (CDC) propose a call to action to move toward the elimination of healthcare-associated infections (HAIs) by adapting the concept and plans used for the elimination of other diseases, including infections. Elimination, as defined for other infectious diseases, is the maximal reduction of “the incidence of infection caused by a specific agent in a defined geographical area as a result of deliberate efforts; continued measures to prevent reestablishment of transmission are required.” (p24) This definition has been useful for elimination efforts directed toward polio, tuberculosis, and syphilis and can be readily adapted to HAIs. Sustained elimination of HAIs can be based on this public health model of constant action and vigilance. Elimination will require the implementation of evidence-based practices, the alignment of financial incentives, the closing of knowledge gaps, and the acquisition of information to assess progress and to enable response to emerging threats. These efforts must be under-pinned by substantial research investments, the development of novel prevention tools, improved organizational and personal accountabilities, strong collaboration among a broad coalition of public and private stakeholders, and a clear national will to succeed in this arena. |
Molecular epidemiology of syphilis-San Francisco, 2004-2007
Katz KA , Pillay A , Ahrens K , Kohn RP , Hermanstyne K , Bernstein KT , Ballard RC , Klausner JD . Sex Transm Dis 2010 37 (10) 660-3 We describe the molecular epidemiology of syphilis in San Francisco (SF) using Treponema pallidum specimens obtained from patients examined at the SF municipal sexually transmitted diseases clinic during 2004-2007. Of 69 specimens, 52 (75%) were subtype 14d9. Single subtype predominance might reflect a closely linked sexual network in SF. |
Prevalence and correlates of Trichomonas vaginalis among incarcerated persons assessed using a highly sensitive molecular assay
Freeman AH , Katz KA , Pandori MW , Rauch LM , Kohn RP , Liska S , Bernstein KT , Klausner JD . Sex Transm Dis 2010 37 (3) 165-8 We describe the epidemiology of Trichomonas vaginalis (TV) among San Francisco County Jail inmates using APTIMA TV analyte-specific reagents on remnant urine. We detected TV in 15/713 (2.1%) men and 95/297 (32.0%) women. Among women, increased age was significantly associated with TV. The benefits of TV screening should be determined. |
Preventing dental caries through school-based sealant programs: updated recommendations and reviews of evidence
Gooch BF , Griffin SO , Gray SK , Kohn WG , Rozier RG , Siegal M , Fontana M , Brunson D , Carter N , Curtis DK , Donly KJ , Haering H , Hill LF , Hinson HP , Kumar J , Lampiris L , Mallatt M , Meyer DM , Miller WR , Sanzi-Schaedel SM , Simonsen R , Truman BI , Zero DT . J Am Dent Assoc 2009 140 (11) 1356-65 BACKGROUND: School-based sealant programs (SBSPs) increase sealant use and reduce caries. Programs target schools that serve children from low-income families and focus on sealing newly erupted permanent molars. In 2004 and 2005, the Centers for Disease Control and Prevention (CDC), Atlanta, sponsored meetings of an expert work group to update recommendations for sealant use in SBSPs on the basis of available evidence regarding the effectiveness of sealants on sound and carious pit and fissure surfaces, caries assessment and selected sealant placement techniques, and the risk of caries' developing in sealed teeth among children who might be lost to follow-up. The work group also identified topics for which additional evidence review was needed. TYPES OF STUDIES REVIEWED: The work group used systematic reviews when available. Since 2005, staff members at CDC and subject-matter experts conducted several independent analyses of topics for which no reviews existed. These reviews include a systematic review of the effectiveness of sealants in managing caries. RESULTS: The evidence supports recommendations to seal sound surfaces and noncavitated lesions, to use visual assessment to detect surface cavitation, to use a toothbrush or handpiece prophylaxis to clean tooth surfaces, and to provide sealants to children even if follow-up cannot be ensured. CLINICAL IMPLICATIONS: These recommendations are consistent with the current state of the science and provide appropriate guidance for sealant use in SBSPs. This report also may increase practitioners' awareness of the SBSP as an important and effective public health approach that complements clinical care. |
Oral health needs among adults in the United States with chronic diseases
Griffin SO , Barker LK , Griffin PM , Cleveland JL , Kohn W . J Am Dent Assoc 2009 140 (10) 1266-74 BACKGROUND: Oral and dental diseases may be associated with other chronic diseases. METHODS: Using data from the National Health and Nutrition Examination Survey 1999-2004, the authors calculated the prevalence of untreated dental diseases, self-reported poor oral health and the number of missing teeth for adults in the United States who had certain chronic diseases. The authors used multivariate analysis to determine whether these diseases were associated with indicators of dental disease after controlling for common risk factors. RESULTS: Participants with rheumatoid arthritis, diabetes or a liver condition were twice as likely to have an urgent need for dental treatment as were participants who did not have these diseases. After controlling for common risk factors, the authors found that arthritis, cardiovascular disease, diabetes, emphysema, hepatitis C virus, obesity and stroke still were associated with dental disease. CONCLUSIONS: The authors found a high burden of unmet dental care needs among participants with chronic diseases. This association held in the multivariate analysis, suggesting that some chronic diseases may increase the risk of developing dental disease, decrease utilization of dental care or both. CLINICAL IMPLICATIONS: Dental and medical care providers should work together to ensure that adults with chronic diseases receive regular dental care. |
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