Postmenopausal Hispanic Women Research Articles

Energy-Adjusted Dietary Inflammatory Index and Diabetes Risk in Postmenopausal Hispanic Women

BackgroundType 2 diabetes is a major public health concern in the United States and worldwide. The dietary inflammatory index (DII) and the energy-adjusted DII (E-DII) are tools that assess dietary inflammation. Previous evidence suggests that obesity can modify the association between inflammation and disease. ObjectiveThe aim of this study was to evaluate the association between the DII/E-DII and incident diabetes in self-identified Hispanic women from the Women’s Health Initiative (WHI). The secondary aim was to evaluate whether obesity modifies the association between the DII/E-DII scores and incident diabetes. DesignParticipants were from the WHI Observational Study and the Clinical Trial Components (except women from the treatment arm in the Dietary Modification Trial) conducted among postmenopausal women in the United States. DII/E-DII scores were calculated from a self-administered food frequency questionnaire at baseline that included 122 food items, of which 12 are representative of Hispanic eating patterns. Participants/settingsParticipants included 3,849 postmenopausal women who self-identified as Hispanic that were recruited for the WHI from 1993 to 1998 at 40 US clinical centers. Main outcome measuresThe outcome was incident diabetes. Statistical analysis performedCox regression models were used to assess the association between DII/E-DII and incident diabetes. Models were adjusted for age at baseline, lifestyle-related risk factors, known type 2 diabetes mellitus (T2DM) risk factors, and neighborhood socioeconomic status. Interaction was tested between the DII/E-DII scores and obesity. ResultsThe incidence of diabetes was 13.1% after a median follow-up of 13 years. Higher E-DII scores were associated with a higher risk of incident diabetes (hazard ratio [HR], 1.09; 95% confidence interval [CI], 1.04–1.14). There was no interaction between E-DII scores and obesity (P = 0.73). ConclusionsPro-inflammatory diets, as measured by higher E-DII scores, were associated with a higher risk of incident diabetes. Future research is needed for understanding how the inflammatory potential of diets can be decreased.

Dietary inflammatory index and cardiovascular disease risk in Hispanic women from the Women’s Health Initiative

BackgroundTo evaluate the association between the dietary inflammatory index (DII®) and incident cardiovascular disease (CVD) in Hispanic women from the Women’s Health Initiative (WHI), and to determine if body mass index (BMI) interacted with the DII scores.MethodsSecondary analysis of baseline dietary data and long-term CVD outcomes among 3,469 postmenopausal women who self-identified as Hispanic enrolled in WHI. DII scores were calculated from self-administered food frequency questionnaires. The CVD outcomes included coronary heart disease (CHD) and stroke. Stratified Cox regression models were used to assess the relationship between DII scores and CVD in women with and without obesity. Models were adjusted for age, lifestyle risk factors, known risk factors, and neighborhood socioeconomic status.ResultsThe incidence of CHD was 3.4 and 2.8% for stroke after a median follow-up of 12.9 years. None of the DIIs were associated with CVD risk in this sample of Hispanic women. BMI interacted with the DII (p < 0.20) and stratified models showed that the associations between the DII and CVD were only significant in women with overweight (p < 0.05). In this group, higher DII scores were associated with a higher risk of CHD (HR 1.27; 95% CI: 1.08, 1.51) and a higher risk of stroke (HR 1.32; 95% CI: 1.07, 1.64).ConclusionAmong postmenopausal Hispanic women with overweight, greater adherence to pro-inflammatory diets was associated with higher risk of CVD. Additional research is needed to understand how to promote long-term heart-healthy dietary habits to reduce inflammation and prevent CVD in at-risk Hispanic women.

Genetic admixture and cardiovascular disease risk in postmenopausal Hispanic women

BackgroundHispanics are a heterogeneous population with differences in the prevalence of cardiovascular disease (CVD) and its related risk factors among ethnic sub-groups. This study evaluated the association of genetic admixture and CVD in self-identified Hispanic women from the Women's Health Initiative (WHI). MethodsData came from the WHI Observational Study and the Clinical Trial Components conducted among postmenopausal women. The CVD outcomes included coronary heart disease (CHD) and stroke. The proportions of European (EUR), sub-Saharan African (AFR), and Amerindian (AMI) admixture were estimated using 92 ancestry-informative markers. Cox regression models were used to assess the relationship between genetic admixture and CVD adjusting for age, lifestyle risk factors, known risk factors, and neighborhood socioeconomic status. ResultsAmong 5195 participants EUR ancestry was associated with a lower CHD risk after adjusting for age (HR 0.41, p = 0.02), and in the fully adjusted model (HR 0.40, p = 0.03). AFR ancestry was associated with a higher CHD risk after adjusting for age (HR 2.91, p = 0.03), but it only showed a trend in in the fully adjusted model (HR 2.46, p = 0.10). AMI ancestry was not statistically significantly associated with CHD and none of the genetic admixture proportions were statistically significantly associated with stroke (p > 0.05). ConclusionEUR ancestry was associated with a lower risk of CHD in Hispanic women. This highlights the need to account for genetic admixture in future CVD studies to consider different heritage groups to understand the role that genetic, neighborhood socioeconomic status, and environmental factors contribute to CVD health disparities in Hispanic women.

Characterization of Potassium-Induced Natriuresis in Hypertensive Postmenopausal Women During Both Low and High Sodium Intake.

Potassium-induced natriuresis may contribute to the beneficial effects of potassium on blood pressure but has not been well-characterized in human postmenopausal hypertension. We determined the time course and magnitude of potassium-induced natriuresis and kaliuresis compared with hydrochlorothiazide in 19 hypertensive Hispanic postmenopausal women. We also determined the modulating effects of sodium intake, sodium-sensitivity, and activity of the thiazide-sensitive NCC (sodium-chloride cotransporter). Sixteen-day inpatient confinement: 8 days low sodium followed by 8 days high sodium intake. During both periods, we determined sodium and potassium excretion following 35 mmol oral KCl versus 50 mg hydrochlorothiazide. We determined sodium-sensitivity as change in 24-hour systolic pressure from low to high sodium. We determined NCC activity by standard thiazide-sensitivity test. Steady-state sodium intake was the key determinant of potassium-induced natriuresis. During low sodium intake, sodium excretion was low and did not increase following 35 mmol KCl indicating continued sodium conservation. Conversely, during high sodium intake, sodium excretion increased sharply following 35 mmol KCl to ≈37% of that produced by hydrochlorothiazide. Under both low and high sodium intake, 35 mmol potassium was mostly excreted within 5 hours, accompanied by a sodium load reflecting the steady-state sodium intake, consistent with independent regulation of sodium/potassium excretion in the human distal nephron. Potassium-induced natriuresis was not greater in sodium-sensitive versus sodium-resistant hypertensives or hypertensives with higher versus lower basal NCC activity. We studied an acute KCl challenge. It remains to further characterize potassium-induced natriuresis during chronic potassium increase and when potassium is administered a complex potassium-containing meal.

When the At-Risk Do Not Develop Heart Failure: Understanding Positive Deviance Among Postmenopausal African American and Hispanic Women

African American and Hispanic postmenopausal women have the highest risk for heart failure compared with other races, but heart failure prevalence is lower than expected in some national cohorts. It is unknown whether psychosocial factors are associated with lower risk of incident heart failure hospitalization among high-risk postmenopausal minority women. Using the Women's Health Initiative Study, African American and US Hispanic women were classified as high-risk for incident heart failure hospitalization with 1 or more traditional heart failure risk factors and the highest tertile heart failure genetic risk scores. Positive psychosocial factors (optimism, social support, religion) and negative psychosocial factors (living alone, social strain, depressive symptoms) were measured using validated survey instruments at baseline. Adjusted subdistribution hazard ratios of developing heart failure hospitalization were determined with death as a competing risk. Positive deviance indicated not developing incident heart failure hospitalization with 1 or more risk factors and the highest tertile for genetic risk. Among 7986 African American women (mean follow-up of 16 years), 27.0% demonstrated positive deviance. Among high-risk African American women, optimism was associated with modestly reduced risk of heart failure hospitalization (subdistribution hazard ratio 0.94, 95% confidence interval 0.91-0.99), and social strain was associated with modestly increased risk of heart failure hospitalization (subdistribution hazard ratio 1.07, 95% confidence interval 1.02-1.12) in the initial models; however, no psychosocial factors were associated with heart failure hospitalization in fully adjusted analyses. Among 3341 Hispanic women, 25.1% demonstrated positive deviance. Among high-risk Hispanic women, living alone was associated with increased risk of heart failure hospitalization (subdistribution hazard ratio 1.97, 95% confidence interval 1.06-3.63) in unadjusted analyses; however, no psychosocial factors were associated with heart failure hospitalization in fully adjusted analyses. Among postmenopausal African American and Hispanic women, a significant proportion remained free from heart failure hospitalization despite having the highest genetic risk profile and 1 or more traditional risk factors. No observed psychosocial factors were associated with incident heart failure hospitalization in high-risk African Americans and Hispanics. Additional investigation is needed to understand protective factors among high-risk African American and Hispanic women.

Role of dietary patterns and acculturation in cancer risk and mortality among postmenopausal Hispanic women: results from the Women's Health Initiative (WHI).

To investigate the association between dietary patterns and total and obesity-related cancers risk. Additionally, to examine if acculturation modifies this relationship. Dietary intake of postmenopausal Hispanic women (N=5,482) enrolled in the Women's Health Initiative was estimated from a Food Frequency Questionnaire and used to calculate dietary pattern scores; Healthy Eating Index-2015 (HEI-2015), Mexican Diet (MexD) score, alternate Mediterranean Diet Score (aMED), and the energy adjusted-Dietary Inflammatory Index (E-DII™). Associations were evaluated using Cox proportional hazards regression models. 631 cancers and 396 obesity-related cancers were diagnosed over a mean-follow up of 12 years. Across dietary scores, there were no significant associations with cancer risk or mortality. Trend analysis suggest a potentially lower risk for total cancer related to the highest MexD score (HR 0.68, 95% CI 0.45-1.04, P-trend=0.03), and lower risk for obesity-related cancer mortality related to the highest score category for MexD (HR 0.65, 95% CI 0.37-1.16, P-trend=0.02), and aMED (HR 0.87, 95% CI 0.45-1.67, P-trend=0.04). Further analysis suggests less acculturated women with higher MexD scores had 56% lower risk for any cancer (HR 0.44, 95% CI 0.22-0.88, P-trend=0.03) and 83% lower risk for cancer mortality (HR 0.17, 95% CI 0.04-0.76, P-trend=0.01) compared to more acculturated Hispanic women. Dietary patterns were not associated with cancer risk and mortality in postmenopausal Hispanic women. Less-acculturated, Spanish-preferred speakers, who reported consuming a more traditional Mexican diet may experience a lower risk for cancer and cancer mortality.

A Randomized Placebo-Controlled Trial of Low- Versus Moderate-Dose Vitamin D3 Supplementation on Bone Mineral Density in Postmenopausal Women With HIV.

Prevalence of osteoporosis and fracture is increased among older people with HIV. We compared the effects of low (1000 IU) vs moderate (3000 IU) vitamin D3 (VitD) supplementation on areal bone mineral density (aBMD) and volumetric bone mineral density (vBMD) in African American and Hispanic postmenopausal women with HIV on antiretroviral therapy. We performed a 12-month prospective, randomized, double-blind, placebo-controlled study with primary outcomes of change in aBMD by dual-energy X-ray absorptiometry (DXA) and secondary outcomes of change in vBMD by quantitative computed tomography and bone turnover markers. An intent-to-treat analysis was performed on 85 randomized subjects (43 low and 42 moderate) for primary DXA outcomes, and complete case analysis was performed for secondary outcomes. Mean age was 56 ± 5 years, median CD4 count was 722 cells/mm, and 74% had HIV RNA ≤ 50 copies/mL. Serum 25-OHD was higher in the moderate than low VitD group at 6 months (33.1 ± 10.3 vs 27.8 ± 8.1 ng/mL, P = 0.03) and 12 months, but parathyroid hormone levels remained similar. Percent change in aBMD, vBMD, and bone turnover markers did not differ between low and moderate VitD groups before or after adjustment for baseline aBMD. VitD supplementation at 3000 IU daily increased mean total 25-OHD levels in postmenopausal women with HIV, but we did not find evidence of an effect on BMD beyond those observed with 1000 IU daily. Future studies are necessary to determine whether VitD supplementation is beneficial in this patient population, and if so, what dose is optimal for skeletal health.

Abstract P106: Association of Race and SES with the Treatment of STEMI and NSTEMI and the Rate of Coronary Revascularization among Post-Menopausal Women: The Women Health Initiative

Background: Racial disparities in coronary revascularization have been documented. However, it is unclear whether these disparities are consistent on a national basis among post-menopausal women hospitalized with STEMI and NSTEMI or for chronic stable angina. Our objective was to assess racial and potential SES disparities in emergent treatment of STEMI, revascularization of STEMI, NSTEMI and for any indication among white, blacks and Hispanic post-menopausal women. Methods: We used data from the 133,760 post-menopausal women, 11,843 were African-American, 4,875 Hispanic, and 117,042 Caucasian. We compared rates of emergent therapy and of coronary revascularization by race and SES. Emergent therapy is defined as thrombolysis, PCI or CABG within 12 hours of chest pain. PCI and CABG any time during a hospitalization were determined by trained physician adjudicators of hospitalized medical records triggered by participant annual self-report. Low SES was defined as less than a high school education or a household income of less than $20,000. Age-adjusted proportional hazards models were performed to evaluate potential disparities in outcomes. No additional covariate adjustment was performed as established CHD risk factors, insurance status, geography are potential causal mediators of the disparities evaluated. Results: Overall, Black women (HR=0.75, 95% CI 0.68-0.82) and Hispanic women (HR=0.69, 95% CI 0.60-0.80) received less revascularization regardless of indication. Black women received less revascularization during a MI hospitalization (HR=0.74, 95% CI 0.62-0.89). For STEMI, Black women received less emergent therapy (HR=0.61, 95% CI 0.48-0.79), less non-emergent revascularization (HR=0.53, 95% CI 0.33-0.86) and overall less revascularization regardless of timing (HR=0.54, 95% CI 0.39-0.75). The number of events in Hispanics precluded analysis. For NSTEMI, no difference by race was found (HR= 0.88, 95%CI 0.70-1.10). Overall, women with low SES received more revascularization (HR=1.40, 95% CI 1.32-1.48) regardless of indication. For STEMI, low SES women compared to high SES received more emergent therapy (HR=1.19, 95% CI 1.03-1.39), and a trend towards more non-emergent revascularization (HR=1.11, 95% CI 0.86-1.44) and revascularization regardless of timing (HR=1.14, 95% CI 0.96-1.37). For NSTEMI, low SES women received more revascularization (HR=1.21, 95% CI 1.04-1.41) than high SES women. Conclusions: There appear to be health disparities with regards to race in emergent therapy for STEMI and revascularization for STEMI, MI and any indication in post-menopausal women. We observed an inverse association between revascularization rates and SES suggesting that other factors may need to be considered to explain this relationship. Mediation analyses to better understand the causal factors associated with our findings need to be explored.

Whole-Body Vibration Training Improves Heart Rate Variability and Body Fat Percentage in Obese Hispanic Postmenopausal Women.

The present study examined the effects of a 6-week whole-body vibration training (WBVT) regimen on heart rate variability (HRV) and body composition in obese Hispanic postmenopausal women. Participants were randomly assigned to either WBVT (n = 13) or a nonexercising control group (n = 14). HRV and body composition were measured before and after 6 weeks. There was a significant group bytime interaction (P < .05) for heart rate, sympathovagal balance, and body fat percentage (BF%) such that all significantly decreased (P < .05); and R-R intervals significantly increased (P < .05) following WBVT compared to no changes after control. The changes in sympathovagal balance were correlated with changes in BF% (r = .63, P < .05). Our findings indicate that WBVT improves HRV and BF% in obese Hispanic postmenopausal women. The improvement in BF% partially explained the decrease in sympathovagal balance. Since obese and older individuals are at increased risk of developing cardiovascular diseases, they could potentially benefit from WBVT.

Abstract B70: Exploring the role of acculturation in breast, colorectal and cervical cancer screening among Hispanic women

Abstract Racial and ethnic disparities exist in cancer screening and management among Hispanics. Although cancer poses a burden among Hispanic women compared to non-Hispanic white women (nHw), screening rates for breast, colorectal and cervical cancer in Hispanic women lag behind nHw. The Hispanic population is heterogeneous and comprises individuals with diverse heritages. Furthermore, considerable variations in health outcomes and practices have been observed across Hispanic subgroups, supporting the relevance of studying each subgroup separately. Since early detection can reduce the burden of cancer, it is important to identify factors that can predict cancer screening within subgroups of Hispanic women. We sought to assess the role of acculturation in adherence to recommended cancer screening practices among Hispanic postmenopausal women, and to assess whether this association varies by Hispanic subgroup using data from the Women's Health Initiative. We included women who identified themselves as Hispanic in the baseline questionnaire (N=3, 263). All women who reported a personal history of cancer other than non-melanoma skin cancer were excluded from the study. Only women without a hysterectomy were included in the cervical cancer screening analysis (N=1,754). Acculturation was measured using self-reported country of birth, language preference and length of residency in the United States (US). Cancer screening adherence was assessed based on the American Cancer Society guidelines in place at the beginning of the study in 1993. The study outcomes were self-reported breast cancer screening (mammography use) and cervical cancer screening (Pap smear use) during the past year and colorectal cancer screening (sigmoidoscopy or colonoscopy use) within five years prior to the interview. Logistic regression was used to estimate the prevalence odds ratio for three types of cancer screening (breast, cervical and colorectal) according to the acculturation level among Hispanic women and within subgroups (Cuban (N=137), Mexican (N=1,151), Puerto Rican (N=289) and Other Hispanic (N=693)), with adjustment for age, alcohol use, family history of cancer, body mass index, physical activity level, and smoking status. Prevalence of breast, colorectal and cervical cancer screening was 68.7%, 55.9% and 47.1%, respectively. Highly acculturated women (US-born, English language preference and living in the US longer than in their country of origin) were more likely to be screened for breast (OR=2.12; 95% CI: 1.57-2.86), cervical (OR=1.46; 95% CI: 0.98-2.18) and colorectal cancer (OR=4.61; 95% CI: 3.27-6.50) within guidelines compared to Hispanic women with low acculturation level. Adjusting for socioeconomic factors attenuated the strength of these associations. For receipt of mammogram, subgroup analysis showed that acculturation mattered in the receipt of a mammogram only for Mexican/Mexican American women (OR=1.35; 95% CI: 1.01-1.82) for high vs. moderate/low acculturation. High acculturation was associated with greater adjusted odds of colorectal cancer screening among Mexican/Mexican American (OR=1.46; 95% CI: 1.10-1.95), Cuban women (OR=18.17; 95% CI: 2.17-152.37), and women from other Hispanic origins (OR=1.50; 95% CI: 1.07-2.11) when compared to women from their same national origin with a moderate/low acculturation level. No significant association between acculturation and cervical cancer screening were observed within the subgroups. These data show important differences in the impact of acculturation on cancer screening uptake among subgroups of Hispanic women. These findings will be useful to develop educational programs, and culturally tailored strategies for each Hispanic subgroup with the end goal of reducing the observed racial and ethnic disparities existent in cancer and promoting colorectal and breast cancer screening. Citation Format: Mary Vanellys Diaz-Santana, Susan Hankinson, Susan Sturgeon, Carol Bigelow, Milagros Rosal, Judith Ockene, Katherine W. Reeves. Exploring the role of acculturation in breast, colorectal and cervical cancer screening among Hispanic women. [abstract]. In: Proceedings of the Ninth AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2016 Sep 25-28; Fort Lauderdale, FL. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2017;26(2 Suppl):Abstract nr B70.

Cardiovascular Risk in HIV-Infected and Uninfected Postmenopausal Minority Women: Use of the Framingham Risk Score.

To characterize and compare cardiovascular disease (CVD) risk in HIV-infected and uninfected postmenopausal minority women using the Framingham Risk Score (FRS) as an assessment measure. A cross-sectional analysis was performed in 152 (109 HIV+, 43 HIV-) subjects from an existing study cohort of postmenopausal Hispanic and African American women. Data necessary to calculate FRS and menopause features were retrieved by retrospective chart review. Bivariate statistics was used to compare CVD risk factors. Multivariable linear regression was used to determine factors associated with FRS in HIV-infected women. The HIV-infected group was younger, less obese, and with lower rates of diabetes versus controls. In a subset of age-matched participants, median FRS did not differ between groups (14.6 [IQR = 9.1, 21.6] vs. 15.5 [IQR = 12.3, 22.1]; p = 0.73). Fourteen percent of HIV-infected women meeting criteria for the low-risk FRS category (<10%) had a history of CVD, a similar rate as controls. HIV-infected women at intermediate/high CVD risk had higher rates of surgical menopause. According to 2013 clinical guidelines, more than half of HIV-infected women not prescribed statin therapy (52%) were eligible for treatment; however, statin therapy was similarly under-prescribed in uninfected women. In this study, CVD risk as assessed by the FRS was not significantly different by HIV status. Performance of the FRS may be compromised in postmenopausal HIV-infected minority women. HIV-infected and uninfected women may be undertreated with statin therapy. Large longitudinal cohorts and inclusion of subclinical measures of CVD are necessary to better characterize risk.

Association of Baseline Depressive Symptoms with Prevalent and Incident Pre-Hypertension and Hypertension in Postmenopausal Hispanic Women: Results from the Women's Health Initiative.

BackgroundDepression and depressive symptoms are risk factors for hypertension (HTN) and cardiovascular disease (CVD). Hispanic women have higher rates of depressive symptoms compared to other racial/ethnic groups yet few studies have investigated its association with incident prehypertension and hypertension among postmenopausal Hispanic women. This study aims to assess if an association exists between baseline depression and incident hypertension at 3 years follow-up among postmenopausal Hispanic women.MethodsProspective cohort study, Women’s Health Initiative (WHI), included 4,680 Hispanic women who participated in the observational and clinical trial studies at baseline and at third-year follow-up. Baseline current depressive symptoms and past depression history were measured as well as important correlates of depression—social support, optimism, life events and caregiving. Multinomial logistic regression was used to estimate prevalent and incident prehypertension and hypertension in relation to depressive symptoms.ResultsPrevalence of current baseline depression ranged from 26% to 28% by hypertension category and education moderated these rates. In age-adjusted models, women with depression were more likely to be hypertensive (OR = 1.25; 95% CI 1.04–1.51), although results were attenuated when adjusting for covariates. Depression at baseline in normotensive Hispanic women was associated with incident hypertension at year 3 follow-up (OR = 1.74; 95% CI 1.10–2.74) after adjustment for insurance and behavioral factors. However, further adjustment for clinical covariates attenuated the association. Analyses of psychosocial variables correlated with depression but did not alter findings. Low rates of antidepressant medication usage were also reported.ConclusionsIn the largest longitudinal study to date of older Hispanic women which included physiologic, behavioral and psychosocial moderators of depression, there was no association between baseline depressive symptoms and prevalent nor incident pre-hypertension and hypertension. We found low rates of antidepressant medication usage among Hispanic women suggesting a possible point for clinical intervention.Trial RegistrationClinicaltrials.gov NCT00000611

Abstract 31: A Multi-ethnic Mendelian Randomization Study of Moderate Alcohol Use and the Risk of Atherosclerotic Cardiovascular Disease in the Women’s Health Initiative

Introduction: Many cohort studies have reported a protective effect of moderate alcohol use (EtOH) on the risk of adverse cardiovascular health outcomes. The exact nature of this association remains unclear in the absence of data from a randomized controlled trial. Hypothesis: We hypothesized that the protective effect of moderate EtOH on the risk of atherosclerotic cardiovascular disease (ASCVD) is not causal in nature and tested our hypothesis by conducting a Mendelian randomization study among European, African American, and Hispanic participants in the Women’s Health Initiative (WHI) study. Methods: A total of 154,643 European, African American, and Hispanic post-menopausal women participated in the WHI study. We first used logistic regression to examine the association between EtOH and ASCVD in 8,105 incident ASCVD cases and 63,094 non-cases reporting moderate use at baseline (&gt;0 to 15 drinks / week). ASCVD outcomes included in the case group were adjudicated fatal and non-fatal myocardial infarction, coronary revascularization, angina, ischemic stroke, peripheral arterial disease, and carotid artery disease. We adjusted our analysis for baseline covariates including age, self-reported race, BMI, hypertension status, systolic blood pressure, diabetes status, smoking status, physical activity, education, and family income. We then performed an instrumental variable analysis in a subset of 1,888 cases and 9,746 non-cases with GWAS and imputed data available for rs1229984, a polymorphism in ADH1B known to be strongly associated with the degree of lifetime alcohol consumption. Lastly, we assessed whether the instrumental variable assumptions are likely to be satisfied by testing for association between rs1229984 and ASCVD as well as all risk factors for ASCVD in 3,434 WHI participants who reported never using alcohol. Results: Observational analysis confirmed a strong inverse linear association between the degree of moderate alcohol use and the risk of ASCVD even after adjusting for all established risk factors of ASCVD (2.2% reduction in risk per doubling of the no. of drinks/week among moderate EtOH users, p = 3.8 x 10-3). In contrast, our instrumental variable analyses among the subset of subjects with genetic data revealed that moderate alcohol use was associated with a markedly higher risk of ASCVD (47% increase in risk per doubling of EtOH use, p = 4.9 x 10-3). We found rs1229984 to be valid instrument as it was well imputed (mean r2 = 0.74), strongly associated with the degree of moderate alcohol use (F statistic = 44.4), and not associated with ASCVD or any ASCVD risk factor among never drinkers. Conclusions: The observational association between alcohol use and improved cardiovascular health is not causal. Our instrumental variable analysis suggests that alcohol use even among moderate users markedly increases risk of ASCVD in a multi-ethic population of post-menopausal women.

Parity and diabetes risk among hispanic women from Colombia: cross-sectional evidence.

ObjectiveThe association between parity and type 2 diabetes has been studied in developed countries and in Singapore and Chinese women but not in Hispanics. Herein we evaluated the association between parity (number of live births) with diabetes in a group of Hispanic postmenopausal women from Colombia.Research design and methodsHerein we evaluated the association between parity and diabetes in a population of 1,795 women from Colombia. Women were divided in birth categories (0 [referent], 1 or 2, 3–5, 6 or > births). Medical history of diabetes and anthropometric characteristics were recorded. Logistic regressions were performed in order to find the association between parity and diabetes in bivariable and multivariable models after controlling for age, body mass index (BMI), waist hip ratio (WHR) and diabetes family history, among other variables.ResultsIn our study, there was an association between parity and diabetes after adjusting for age, BMI and diabetes family history in the multiparous women groups when compared to the women with no births (Referent group) [1–2 births vs. referent OR 5.2 (95 CI 1.2–22.9), 3–5 births vs. referent OR 5.5 (1.3–23.0) and ≥6 births vs. referent OR 7.5 (1.8–31.8), respectively]. The association was maintained in two of the groups in the multivariable analysis [OR 5.0 (1.1–22.9) and 5.3 (1.2–23.5)], for 1 or 2 births and 6 or > births versus 0 births, respectively. Positive diabetes family history and WHR were also associated with an increased risk of diabetes [OR 4.6 (3.0–7.0) and 4.1 (2.0–8.1), respectively].ConclusionsIn postmenopausal Hispanic women, multiparity, as well as a positive family history of diabetes and a high waist-hip ratio were associated with higher diabetes risk.

Body size throughout adult life influences postmenopausal breast cancer risk among hispanic women: the breast cancer health disparities study.

Few studies have assessed the association of body size with postmenopausal breast cancer risk in Hispanic women. Findings are inconsistent and appear to contradict those reported for non-Hispanic white (NHW) women. We pooled interview and anthropometric data for 2,023 Hispanic and 2,384 NHW women from two U.S. population-based case-control studies. Using logistic regression analysis, we examined associations of overall and abdominal adiposity with risk of postmenopausal breast cancer defined by estrogen receptor (ER) and progesterone receptor (PR) status. Weight gain was associated with increased risk of ER(+)PR(+) breast cancer in Hispanics not currently using menopausal hormone therapy (HT), but only among those with a low young-adult body mass index (BMI). In the subset of Hispanics with data on genetic ancestry, the association with weight gain was limited to women with lower Indigenous American ancestry. Young-adult BMI was inversely associated with both ER(+)PR(+) and ER(-)PR(-) breast cancers for both ethnicities combined, with similar, although nonsignificant, inverse trends in Hispanics and NHWs. Among all Hispanics, regardless of HT use, height was associated with risk of ER(-)PR(-) breast cancer and hip circumference with risk of breast cancer overall. Body size throughout adult life is associated with breast cancer risk among postmenopausal Hispanic women, as has been reported for NHW women. Associations were specific for breast cancer subtypes defined by hormone receptor status. Avoiding weight gain and maintaining a healthy weight are important strategies to reduce the risk of postmenopausal ER(+)PR(+) breast cancer, the most common breast cancer subtype.

Effects of nebivolol versus metoprolol on sodium sensitivity and renal sodium handling in hypertensive Hispanic postmenopausal women.

Several consistent lines of evidence indicate an association between sodium sensitivity and impaired nitric oxide bioactivity. Nevertheless, whether restoring nitric oxide in humans by pharmacological means can ameliorate sodium sensitivity has not been investigated. Because nebivolol has been demonstrated to increase nitric oxide bioactivity in both laboratory and clinical investigations, we hypothesized that nebivolol might ameliorate sodium sensitivity and improve renal sodium handling in comparison to metoprolol. We therefore conducted a randomized, 2-treatment-period crossover trial in 19 Hispanic postmenopausal women with hypertension to determine the comparative effects of nebivolol versus metoprolol on (1) 24-hour ambulatory blood pressure response to an increase in dietary sodium from 5 days of low sodium to 5 days of high sodium, (2) renal natriuretic response to a 1-L saline challenge, and (3) asymmetrical dimethylarginine. Clinic blood pressure and heart rate were significantly reduced after 4 weeks of treatment with both nebivolol and metoprolol. Twenty-four–hour mean systolic blood pressure increased sharply from low sodium to high sodium for both nebivolol and metoprolol. Nevertheless, the increases in blood pressure did not differ between the 2 drugs: 7.7 (3.1, 12.3) mm Hg with metoprolol and 9.3 (4.6, 13.9) mm Hg with nebivolol (P=0.63). Furthermore, we observed no differences between the drugs in natriuretic response to saline challenge or asymmetrical dimethylarginine. In a sodium-sensitive population, at doses sufficient to produce reductions in blood pressure and heart rate, nebivolol did not demonstrate a significant effect on sodium sensitivity or sodium handling compared with metoprolol.

Abstract 51: Baseline Depressive Symptoms are Associated with Incident Hypertension in Postmenopausal Hispanic Women: Results from the Women’s Health Initiative

Background: Hispanic women have higher rates of depressive symptoms compared to other racial/ethnic groups. Depression has been associated with incident hypertension in multiple prior studies with mixed results. However, prior studies were limited by small numbers of Hispanic women, short followup and limited information on possible confounders. Methods: We evaluated baseline depression and incident hypertension at three years follow-up among 4,680 postmenopausal Hispanic women enrolled in the Women’s Health Initiative observational study and clinical trial. Depression was measured at baseline using the Burnam 8-item scale (combines 6 items from the Center for Epidemiological Studies Depression Scale and 2 items from the Diagnostic Interview Schedule). This scale assesses both current depressive symptoms and past depression history. Women with a calculated Burnam score ≥ 0.06 were considered to have symptoms of depression. Multinomial logistic regression was used to estimate odds of hypertension at baseline in relation to depression. We used logistic regression to estimate odds ratios and 95% confidence intervals for the association between depression and incident hypertension at three years of follow-up. All models were adjusted for multiple demographic, clinical, and behavioral covariates. Results: Of 4, 680 Hispanic women, 32% met current depression criteria at baseline. In an age-adjusted model, women with depression were more likely to be hypertensive (OR=1.25; 95% CI 1.04-1.51), although results were attenuated when adjusting for multiple covariates. Further adjustment for antidepressant use at baseline made no important differences to the estimates. Depression at baseline in normotensive Hispanic women was associated with incident hypertension at year 3 follow-up (OR=1.29; 95% CI 1.02-1.63) after adjustment for age, education, insurance, body mass index, diabetes status, hypercholesterolemia, family history of diabetes and cardiovascular disease, and participant history of CVD. Further adjustment for behavior covariates (smoking, physical activity and alcohol intake) did not attenuate the association significantly. Conclusion: In the largest study to date of older Hispanic women, baseline depression is associated with incident hypertension at three years of followup. Early detection and management of depression in older Hispanic women is essential to preventing cardiovascular sequelae.

Severe obesity, heart disease, and death among white, african american, and hispanic postmenopausal women

To compare mortality, nonfatal coronary heart disease (CHD), and congestive heart failure (CHF) risk across BMI categories in white, African American, and Hispanic women, with a focus on severe obesity (BMI ≥ 40), and examine heterogeneity in weight-related CHD risk. Among 156,775 Women's Health Initiative observational study and clinical trial participants (September 1993-12 September 2005), multivariable Cox models estimated relative risk for mortality, CHD, and CHF. CHD incidence was calculated by anthropometry, race, and cardiovascular risk factors (CVRF). Mortality, nonfatal CHD, and CHF incidence generally rose with BMI category. For severe obesity versus normal BMI, hazard ratios (HRs, 95% confidence interval) for mortality were 1.97 (1.77-2.20) in white, 1.55 (1.20-2.00) in African American, and 2.59 (1.55-4.31) in Hispanic women; for CHD, HRs were 2.05 (1.80-2.35), 2.24 (1.57-3.19), and 2.95 (1.60-5.41) respectively; for CHF, HRs were 5.01 (4.33-5.80), 3.60 (2.30-5.62), and 6.05 (2.49-14.69). CVRF variation resulted in substantial variation in CHD rates across BMI categories, even in severe obesity. CHD incidence was similar by race/ethnicity when differences in BMI or CVRF were accounted for. Severe obesity increases mortality, nonfatal CHD, and CHF risk in women of diverse race/ethnicity. CVRF heterogeneity contributes to variation in CHD incidence even in severe obesity.

Prevalence and incident prehypertension and hypertension in postmenopausal Hispanic women: results from the Women's Health Initiative.

There is a paucity of research on prehypertension and incident hypertension among postmenopausal Hispanic women. The overall objective is to determine the multiple risk factors associated with the prevalence of hypertension status at baseline and incident hypertension at year 3 in postmenopausal Hispanic women. For the analyses in this paper, we included a total of 4,680 Hispanic women who participated in the Women's Health Initiative (WHI), a randomized clinical trial and observational study, at baseline (1994-1998) and at third-year follow-up and for whom blood pressure was measured at year 3 (n = 3,848). Multivariable logistic regression models were used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) of hypertension status, defined as systolic blood pressure ≥140 mm Hg and/or diastolic blood pressure ≥90 mm Hg, to assess the odds of incident hypertension at year 3 of follow-up in association with the factors included in the baseline models. At year 3 of follow-up, 27.3% of Hispanic women who were normotensive at baseline had progressed to prehypertension, and 9.0% had become hypertensive. Among the prehypertensive participants at baseline, 30.4% had progressed to hypertension. Compared with normotensive Hispanic women, hypertensive participants had a higher number of cardiovascular risk factors: body mass index ≥30 kg/m(2) (OR = 3.76; 95% CI = 3.01-4.71), a family history of diabetes, stroke, and/or myocardial infarction (OR = 1.12; 95% CI 1.03-1.23), treated hypercholesterolemia (OR = 1.57; 95% CI = 1.23-1.99), treated diabetes (OR = 2.04; 95% CI = 1.40-2.97), and a history of cardiovascular disease (OR = 2.04; 95% CI = 1.58-2.64). Hispanic women seem to experience an increased risk of incident hypertension in later adulthood. On a practical level, recommendations for preventive care and population-wide adoption of health behaviors, such as community-focused campaigns to engage in physical activity, may contribute to reductions in hypertension risk factors. Trial Number NCT00000611.

Racial/ethnic disparities in association between dietary quality and incident diabetes in postmenopausal women in the United States: the Women's Health Initiative 1993–2005

Objective. To examine the association of dietary quality and risk of incident diabetes overall and by race/ethnicity among postmenopausal women enrolled in the Women's Health Initiative (WHI).Research methods and procedures. The WHI recruited 161,808 postmenopausal women between 1993 and 1998, and followed them until 2005. Incident diabetes was determined annually over an average of 7.6 years from enrollment. At baseline, all participants completed a Food Frequency Questionnaire (FFQ). Dietary quality was assessed by the Alternate Healthy Eating Index (AHEI), calculated from the baseline FFQ responses.Results. There were 10,307 incident cases of self-reported treated diabetes over 1,172,761 person-years of follow-up. Most participants did not meet the AHEI dietary goals; that is, only 0.1% of women met or exceeded the recommended consumption of vegetables, and few (17.3%) met or exceeded the recommended level for total fiber. After adjusting for potential confounders, women in the highest quintile of the AHEI score were 24% less likely to develop diabetes relative to women in the lowest quintile of AHEI [hazard ratio (HR) = 0.76 (95% CI: 0.70–0.82)]. This association was observed in Whites [HR = 0.74 (95% CI: 0.68–0.82)] and Hispanics [HR = 0.68 (95% CI: 0.46–0.99)], but not in Blacks [HR = 0.85 (95% CI: 0.69–1.05)] or Asians [HR = 0.88 (95% CI: 0.57–1.38)].Conclusion. These findings support a protective role of healthful eating choices in reducing the risk of developing diabetes, after adjusting for other lifestyle factors, in White and Hispanic postmenopausal women. Future studies are needed to investigate the relationship between dietary quality and risk of diabetes among Blacks and Asians in relationship to other lifestyle factors.