Last data update: May 06, 2024. (Total: 46732 publications since 2009)
Records 1-9 (of 9 Records) |
Query Trace: Wingo PA[original query] |
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The effect of body mass index and weight change on epithelial ovarian cancer survival in younger women: a long-term follow-up study
Tyler CP , Whiteman MK , Zapata LB , Hillis SD , Curtis KM , McDonald J , Wingo PA , Kulkarni A , Marchbanks PA . J Womens Health (Larchmt) 2012 21 (8) 865-71 OBJECTIVE: The objective of this study was to assess the relationship between body mass index (BMI) and epithelial ovarian cancer survival among young women. METHODS: We conducted a cohort analysis of 425 women aged 20-54 years with incident epithelial ovarian cancer enrolled during 1980-1982 in Cancer and Steroid Hormone (CASH), a population-based, case-control study. Participants' vital status was ascertained though linkage with the Surveillance, Epidemiology and End Results (SEER) program. Using Cox proportional hazards models, we estimated adjusted hazard ratios (HR) and 95% confidence intervals (CI) for the association between survival and usual adult BMI, BMI at age 18, and weight change from age 18 to adult. RESULTS: During a follow-up of up to 17 years, 215 women died. Compared to women with an adult BMI in the lowest quartile (<20.7), women in the second (20.8-22.5), third (22.6-24.9), and fourth (≥25.0) quartiles were not at increased risk for death (HR 1.2, 95% CI 0.8-1.8; HR 1.1, 95% CI 0.7-1.6; and HR 0.9, 95% CI 0.6-1.4, respectively) (p trend=0.6). Similarly, neither age 18 BMI nor weight change were associated with ovarian cancer survival. CONCLUSIONS: Although elevated BMI is associated with increased ovarian cancer risk among young women, we found no evidence of its association with ovarian cancer survival in this population. |
Ovarian cancer and body size: individual participant meta-analysis including 25,157 women with ovarian cancer from 47 epidemiological studies
Collaborative Group on Epidemiological Studies of Ovarian Cancer , Lee N , Marchbanks P , Ory HW , Peterson HB , Wingo PA . PLoS Med 2012 9 (4) e1001200 BACKGROUND: Only about half the studies that have collected information on the relevance of women's height and body mass index to their risk of developing ovarian cancer have published their results, and findings are inconsistent. Here, we bring together the worldwide evidence, published and unpublished, and describe these relationships. METHODS AND FINDINGS: Individual data on 25,157 women with ovarian cancer and 81,311 women without ovarian cancer from 47 epidemiological studies were collected, checked, and analysed centrally. Adjusted relative risks of ovarian cancer were calculated, by height and by body mass index. Ovarian cancer risk increased significantly with height and with body mass index, except in studies using hospital controls. For other study designs, the relative risk of ovarian cancer per 5 cm increase in height was 1.07 (95% confidence interval [CI], 1.05-1.09; p<0.001); this relationship did not vary significantly by women's age, year of birth, education, age at menarche, parity, menopausal status, smoking, alcohol consumption, having had a hysterectomy, having first degree relatives with ovarian or breast cancer, use of oral contraceptives, or use of menopausal hormone therapy. For body mass index, there was significant heterogeneity (p<0.001) in the findings between ever-users and never-users of menopausal hormone therapy, but not by the 11 other factors listed above. The relative risk for ovarian cancer per 5 kg/m2 increase in body mass index was 1.10 (95% CI, 1.07-1.13; p<0.001) in never-users and 0.95 (95% CI, 0.92-0.99; p = 0.02) in ever-users of hormone therapy. CONCLUSIONS: Ovarian cancer is associated with height and, among never-users of hormone therapy, with body mass index. In high-income countries, both height and body mass index have been increasing in birth cohorts now developing the disease. If all other relevant factors had remained constant, then these increases in height and weight would be associated with a 3% increase in ovarian cancer incidence per decade. (2012 Collaborative Group on Epidemiological Studies of Ovarian Cancer.) |
Geographic variation in trends and characteristics of teen childbearing among American Indians and Alaska Natives, 1990-2007
Wingo PA , Lesesne CA , Smith RA , de Ravello L , Espey DK , Arambula Solomon TG , Tucker M , Thierry J . Matern Child Health J 2011 16 (9) 1779-90 To study teen birth rates, trends, and socio-demographic and pregnancy characteristics of AI/AN across geographic regions in the US. The birth rate for US teenagers 15-19 years reached a historic low in 2009 (39.1 per 1,000) and yet remains one of the highest teen birth rates among industrialized nations. In the US, teen birth rates among Hispanic, non-Hispanic black, and American Indian/Alaska Native (AI/AN) youth are consistently two to three times the rate among non-Hispanic white teens. Birth certificate data for females younger than age 20 were used to calculate birth rates (live births per 1,000 women) and joinpoint regression to describe trends in teen birth rates by age (<15, 15-17, 18-19) and region (Aberdeen, Alaska, Bemidji, Billings, California, Nashville, Oklahoma, Portland, Southwest). Birth rates for AI/AN teens varied across geographic regions. Among 15-19-year-old AI/AN, rates ranged from 24.35 (California) to 123.24 (Aberdeen). AI/AN teen birth rates declined from the early 1990s into the 2000s for all three age groups. Among 15-17-year-olds, trends were approximately level during the early 2000s-2007 in six regions and declined in the others. Among 18-19-year-olds, trends were significantly increasing during the early 2000s-2007 in three regions, significantly decreasing in one, and were level in the remaining regions. Among AI/AN, cesarean section rates were lower in Alaska (4.1%) than in other regions (16.4-26.6%). This is the first national study to describe regional variation in AI/AN teen birth rates. These data may be used to target limited resources for teen pregnancy intervention programs and guide research. |
Recent trends in cutaneous melanoma incidence and death rates in the United States, 1992-2006
Jemal A , Saraiya M , Patel P , Cherala SS , Barnholtz-Sloan J , Kim J , Wiggins CL , Wingo PA . J Am Acad Dermatol 2011 65 S17-S25 e3 BACKGROUND: Increasing cutaneous melanoma incidence rates in the United States have been attributed to heightened detection of thin (≤1-mm) lesions. OBJECTIVE: We sought to describe melanoma incidence and mortality trends in the 12 cancer registries covered by the Surveillance, Epidemiology, and End Results program and to estimate the contribution of thin lesions to melanoma mortality. METHODS: We used joinpoint analysis of Surveillance, Epidemiology, and End Results incidence and mortality data from 1992 to 2006. RESULTS: During 1992 through 2006, melanoma incidence rates among non-Hispanic whites increased for all ages and tumor thicknesses. Death rates increased for older (>65 years) but not younger persons. Between 1998 to 1999 and 2004 to 2005, melanoma death rates associated with thin lesions increased and accounted for about 30% of the total melanoma deaths. LIMITATIONS: Availability of long-term incidence data for 14% of the US population was a limitation. CONCLUSIONS: The continued increases in melanoma death rates for older persons and for thin lesions suggest that the increases may partly reflect increased ultraviolet radiation exposure. The substantial contribution of thin lesions to melanoma mortality underscores the importance of standard wide excision techniques and the need for molecular characterization of the lesions for aggressive forms. |
Oral contraceptive formulation and risk of breast cancer
Marchbanks PA , Curtis KM , Mandel MG , Wilson HG , Jeng G , Folger SG , McDonald JA , Daling JR , Bernstein L , Malone KE , Wingo PA , Simon MS , Norman SA , Strom BL , Ursin G , Weiss LK , Burkman RT , Spirtas R . Contraception 2011 85 (4) 342-50 BACKGROUND: While evidence on the association between oral contraceptive (OC) use and breast cancer generally suggests little or no increased risk, the question of whether breast cancer risk varies by OC formulation remains controversial. Few studies have examined this issue because large samples and extensive OC histories are required. STUDY DESIGN: We used data from a multicenter, population-based, case-control investigation. Women aged 35-64 years were interviewed. To explore the association between OC formulation and breast cancer risk, we used conditional logistic regression to derive adjusted odds ratios, and we used likelihood ratio tests for heterogeneity to assess whether breast cancer risk varied by OC formulation. Key OC exposure variables were ever use, current or former use, duration of use and time since last use. To strengthen inferences about specific formulations, we restricted most analyses to the 2282 women with breast cancer and the 2424 women without breast cancer who reported no OC use or exclusive use of one OC. RESULTS: Thirty-eight formulations were reported by the 2674 women who used one OC; most OC formulations were used by only a few women. We conducted multivariable analyses on the 10 formulations that were each used by at least 50 women and conducted supplemental analyses on selected formulations of interest based on recent research. Breast cancer risk did not vary significantly by OC formulation, and no formulation was associated with a significantly increased breast cancer risk. CONCLUSIONS: These results add to the small body of literature on the relationship between OC formulation and breast cancer. Our data are reassuring in that, among women 35-64 years of age, we found no evidence that specific OC formulations increase breast cancer risk. |
Recent changes in the trends of teen birth rates, 1981-2006
Wingo PA , Smith RA , Tevendale HD , Ferre C . J Adolesc Health 2011 48 (3) 281-8 PURPOSE: To explore trends in teen birth rates by selected demographics. METHODS: We used birth certificate data and joinpoint regression to examine trends in teen birth rates by age (10-14, 15-17, and 18-19 years) and race during 1981-2006 and by age and Hispanic origin during 1990-2006. Joinpoint analysis describes changing trends over successive segments of time and uses annual percentage change (APC) to express the amount of increase or decrease within each segment. RESULTS: For teens younger than 18 years, the decline in birth rates began in 1994 and ended in 2003 (APC: -8.03% per year for ages 10-14 years; APC: -5.63% per year for ages 15-17 years). The downward trend for 18- and 19-year-old teens began earlier (1991) and ended 1 year later (2004) (APC: -2.37% per year). For each study population, the trend was approximately level during the most recent time segment, except for continuing declines for 18- and 19-year-old white and Asian/Pacific Islander teens. The only increasing trend in the most recent time segment was for 18- and 19-year-old Hispanic teens. During these declines, the age distribution of teens who gave birth shifted to slightly older ages, and the percentage whose current birth was at least their second birth decreased. CONCLUSIONS: Teen birth rates were generally level during 2003/2004-2006 after the long-term declines. Rates increased among older Hispanic teens. These results indicate a need for renewed attention to effective teen pregnancy prevention programs in specific populations. |
Endometrial cancer risk among younger, overweight women
Thomas CC , Wingo PA , Dolan MS , Lee NC , Richardson LC . Obstet Gynecol 2009 114 (1) 22-7 OBJECTIVE: To examine the risk for endometrial cancer among overweight women using the World Health Organization's clinical definitions of obesity based on body mass index (BMI). METHODS: Conducted in the early 1980s, the Cancer and Steroid Hormone study was a multicenter, population-based, case-control study of breast, ovarian, and endometrial cancers among women aged 20-54 years. Participants for the case group (n=421) were identified through cancer registries and had histologically confirmed endometrial cancer. Participants for the control group (n=3,159) were chosen by random-digit dialing methods in the same regions as those in the case group. Those in the case and control groups responded to the same questions during in-person interviews. Unconditional logistic regression was used to estimate adjusted odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS: The relationship between endometrial cancer and BMI (calculated as weight [kg]/[height (m)]) was modified by age at last menstrual period (LMP). Of women who were younger than 45 years at LMP, those with BMIs of at least 35.0 had a greater risk of endometrial cancer (56%, 30/54) than did those with normal BMIs (4%, 59/1,492, adjusted OR 21.7, 95% CI 11.3-41.7). Of women age 45 or older at LMP, those with BMIs of at least 35.0 also had a greater risk (40%, 24/60) than did those with normal BMIs (14%, 168/1,235, adjusted OR 3.7, 95% CI 2.0-6.6). Women younger than 45 years at LMP and those with BMIs of at least 25.0 at 18 years and as adults (25%, 31/123) had an approximately sixfold increased risk (adjusted OR 5.8, 95% CI 3.4-9.8) compared with those with normal BMIs at 18 and as adults (4%, 58/1,460). CONCLUSION: Very obese women aged 20-54 years have an elevated endometrial cancer risk, which appears heightened by early menopause. LEVEL OF EVIDENCE: II. |
Influence of reproductive factors on mortality after epithelial ovarian cancer diagnosis
Robbins CL , Whiteman MK , Hillis SD , Curtis KM , McDonald JA , Wingo PA , Kulkarni A , Marchbanks PA . Cancer Epidemiol Biomarkers Prev 2009 18 (7) 2035-41 INTRODUCTION: Although many studies have examined the influence of reproductive factors on ovarian cancer risk, few have investigated their effect on ovarian cancer survival. We examined the prognostic influence of reproductive factors on survival after ovarian cancer diagnosis. METHODS: We conducted a longitudinal analysis of 410 women, ages 20 to 54 years, who participated in the 1980 to 1982 Cancer and Steroid Hormone study as incident ovarian cancer cases. We obtained their vital status by linking Cancer and Steroid Hormone records with Surveillance, Epidemiology, and End Results data. We used the Kaplan-Meier approach to estimate survival probabilities and Cox proportional hazards models to estimate hazard ratios (HR) and 95% confidence intervals (95% CI). RESULTS: During a median follow-up of 9.2 years, 212 women died. Of the reproductive factors examined, only age at menarche and number of lifetime ovulatory cycles (LOC) relative to age significantly predicted ovarian cancer survival. Risk for death was higher among women with highest number of LOC compared with those having fewest LOC (HR, 1.67; 95% CI, 1.20-2.33). Women with fewest LOC had the highest 15-year survival (56.7%; 95% CI, 47.8-64.6%), and women with the highest LOC had the poorest (33.3%; 95% CI, 25.3-41.5%). Women whose age at menarche was <12 years had a higher risk of death compared with women whose menses began at > or =14 years (HR, 1.51; 95% CI, 1.02-2.24). CONCLUSIONS: We found that high LOC and early age at menarche were associated with decreased survival after ovarian cancer. |
Health disparities among Mexican American women aged 15-44 years: National Health and Nutrition Examination Survey, 1999-2004
Wingo PA , Kulkarni A , Borrud LG , McDonald JA , Villalobos SA , Green DC . Am J Public Health 2009 99 (7) 1300-7 OBJECTIVES: We analyzed the health of Mexican American women aged 15 to 44 years, by generation and language preference, to guide planning for reproductive health services in this growing population. METHODS: We used personal interview and medical examination data from the 1999 to 2004 National Health and Nutrition Examination Surveys. We used SUDAAN for calculating age-adjusted prevalence estimates of demographic and health characteristics. The Satterthwaite adjusted F test and Student t test were used for subgroup comparisons. RESULTS: The women had different health profiles (P < .05) by generation and language preference. Second- and later-generation women and women who used more English were more likely to be sexually active, to have been younger at first intercourse, and to have had more male sexual partners than were first-generation women and women who used more Spanish. Compared with their first-generation counterparts, second- and later-generation women drank more alcohol, were better educated, had higher incomes, and were more likely to have health insurance. Third-generation women were more likely to have delivered a low-birthweight baby than were first-generation women. CONCLUSIONS: Differences by generation and language preference suggest that acculturation should be considered when planning interventions to promote healthy reproductive behaviors among Mexican American women. |
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