Faculty Bibliography

Evidence on ethnic enclave-health associations for Asian Americans is limited due to an inconsistent definition of ethnic enclave. The authors aimed to establish a robust criterion for defining Asian enclaves in New York City (NYC) and assessed the association between enclave residence and health outcomes among Asian American adults. Data came from 2009-2012 NYC Community Health Surveys and 2008-2012 American Community Survey. Asian enclave was defined as an area with high dissimilarity and isolation scores as well as high concentration of Asians. Five of 55 NYC community districts were identified as Asian enclaves. After controlling for confounding, enclave residence was associated with positive perception of general health with borderline significance (prevalence ratio = 1.06, 95 % CI 0.98, 1.15), but not with current smoking, hypertension, and diabetes. Ethnic enclave residence in urban areas may not produce a substantial impact on chronic health outcomes for Asian Americans beyond individual-level factors.

INTRODUCTION: Neighborhood factors are increasingly recognized as determinants of health. Neighborhood social cohesion may be associated with physical activity, but previous studies examined data aggregated across racial/ethnic groups. We assessed whether neighborhood social cohesion was associated with physical activity in a nationally representative data set and explored the role of race/ethnicity. METHODS: We combined National Health Interview Survey data from 2013 and 2014 (n = 64,754) and constructed a neighborhood social cohesion score by summing responses to 4 questions. The outcome of meeting aerobic physical activity guidelines was defined as 150 or more minutes per week of moderate activity or 75 or more minutes of vigorous activity. Multivariable models regressing physical activity on neighborhood social cohesion were adjusted for demographic factors; interaction analyses assessed effect modification by race/ethnicity. RESULTS: In adjusted analyses, a 1-unit increase in the neighborhood social cohesion score was associated with higher odds of meeting physical activity guidelines (odds ratio [OR], 1.04; 95% confidence interval [CI], 1.03-1.05). Neighborhood social cohesion and physical activity were associated among non-Hispanic white adults (OR, 1.30; 95% CI, 1.20-1.42) and Hispanic adults (OR, 1.18; 95% CI, 1.03-1.34]) but not among non-Hispanic black or Asian American adults (Chinese, Filipino, and Asian Indians). CONCLUSION: Neighborhood social cohesion was associated with meeting physical activity guidelines in a nationally representative sample; this association may be most meaningful for non-Hispanic white and Hispanic populations. Additional studies are needed to identify neighborhood factors that help non-Hispanic black and Asian Americans to meet physical activity guidelines.

Asian Americans have lower levels of physical activity (PA) compared to other racial/ethnic groups; however, there is little understanding of the social and cultural determinants of PA in this population. Few analyses describe specific PA domains (occupation-, transportation-, recreation-related), focus on one Asian subgroup, or use validated scales. The study objective was to assess the association between acculturation and activity behaviors (meeting 2008 PA guidelines, activity minutes by PA domain, sitting time) in a cross-sectional sample of urban-dwelling, Chinese American immigrants. Data were from the Chinese American Cardiovascular Health Assessment (CHA CHA) 2010-11 among participants with valid reports of PA minutes, assessed by the WHO Global Physical Activity Questionnaire (n = 1772). Acculturation was assessed using the Stephenson Multigroup Acculturation Scale, a 32-item instrument which characterizes two acculturative dimensions: ethnic society (Chinese) immersion and dominant society (American) immersion (maximum possible scores = 4). Multivariable models regressing activity behaviors on acculturation were run, adjusting for age, sex, household income, education, and age at immigration. Ethnic society immersion was high (mean = 3.64) while dominant society immersion was moderate (mean = 2.23). Higher ethnic society immersion was associated with less recreation-related PA (- 40.7 min/week); higher dominant society immersion was associated with a higher odds of meeting PA guidelines (OR: 1.66 (1.25, 2.20), p < 0.001) and more recreation-related PA (+ 36.5 min/week). Given low PA levels in Chinese adults in China, results suggest that PA for leisure may increase and become a more normative behavior among Chinese American immigrants with acculturation. Understanding acculturation level may inform strategies to increase PA in Chinese Americans.

OBJECTIVE: Using 2004 New York City Health and Nutrition Examination Survey (NYC HANES) data, we sought to examine variation in hypertension (HTN) prevalence across eight Asian and Hispanic subgroups. DESIGN: Cross-sectional. SETTING: New York City, 2004. MAIN OUTCOME MEASURES: Logistic regression was performed to identify differences in HTN prevalence between ethnic subgroups controlling for age, sex, education and BMI. RESULTS: Overall HTN prevalence among NYC adults was 25.5% (95% CI: 23.4-27.8), with 21.1% (95% CI: 18.2-24.3) among Whites, 32.8% (95% CI: 28.7-37.2) Black, 26.4% (95% CI: 22.3-31.0) Hispanics, and 24.7% (95% CI: 19.9-30.3) Asians. Among Hispanic subgroups, Dominicans had the highest HTN prevalence (32.2%), followed by Puerto Ricans (27.7%), while Mexicans had the lowest prevalence (8.1%). Among Asian subgroups, HTN prevalence was slightly higher among South Asians (29.9%) than among Chinese (21.3%). Adjusting for age, Dominican adults were nearly twice as likely to have HTN as non-Hispanic (NH) Whites (OR=1.96, 95% CI: 1.24-3.12), but this was attenuated after adjusting for sex and education (OR=1.27, 95% CI: .76 - 2.12). When comparing South Asians with NH Whites, results were also non-significant after adjustment (OR=2.00, 95% CI: .90-4.43). CONCLUSIONS: When analyzing racial/ethnic subgroups, NH Black and Hispanic adults from Dominican Republic had the highest HTN prevalence followed by South Asian and Puerto Rican adults. Mexican adults had the lowest prevalence of all groups. These findings highlight that ethnic subgroup differences go undetected when stratified by broader racial/ethnic categories. To our knowledge, this is the first population-based study using objective measures to highlight these differences.

INTRODUCTION: South Asians experience high rates of cardiovascular disease and type 2 diabetes, coupled with low rates of reported physical activity. We report findings from a qualitative sub-study that was conducted in 2013 among Bangladeshi immigrants in New York City to understand factors that affect physical activity practices and weight management in this community. METHODS: Qualitative study participants were recruited from community-based settings. Sex-specific focus groups were conducted by trained community health workers. Proceedings were audio-recorded for translation and transcription and coded using a constant comparative approach. Data were coded using Atlas.ti software. RESULTS: Six focus groups were completed with a final sample of 67 participants (63% male, 37% female). Mean participant age was 42 years; mean years of residence in the United States was 12. Key themes that emerged were beliefs about modesty and sex-separated facilities that may prevent women from engaging in physical activity. Distinctions were made between men and women about what constitutes exercise versus physical activity; religious prayer was considered to be health-promoting because of the movement involved. Other important themes that emerged were cultural dietary practices and evolving conceptions of healthy weight. CONCLUSION: Tailored interventions that take into account the cultural context of this growing community are needed. Findings may also provide insight into barriers to health promotion experienced by other US Muslim communities, which are growing rapidly.

BACKGROUND: Asian Americans are the fastest growing racial/ethnic group in the United States. Chinese Americans and their counterparts in Chinese countries have been shown to have an elevated risk of stroke compared to non-Hispanic Whites, while South Asian Americans and their counterparts in South Asian countries have an elevated risk of heart disease. Exactly how cardiovascular disease morbidity varies by Asian subgroup, however, is not well understood. The purpose of this analysis was to identify differences in clinical presentation and lifestyle behaviors between Chinese and South Asian American immigrants vs. non-Hispanic Whites in a representative sample of adults with self-report of physician-diagnosed hypertension. METHODS: Data on adults with self-reported hypertension were obtained from the New York City Community Health Survey 2009-2013 (Chinese: n = 555; South Asian: n = 144; non-Hispanic White: n = 5,987). RESULTS: Compared to non-Hispanic Whites with hypertension, foreign-born Chinese adults with hypertension were of a much lower socioeconomic profile and less likely to have private health insurance, and foreign-born Chinese and South Asian adults with hypertension had lower body mass index (BMI) values (25.3, 26.0 vs. 28.7kg/m2; P < 0.001). South Asians were younger than non-Hispanic Whites (mean age: 49.5 vs. 62.1 years; P < 0.001) and had poorer diet quality. BMI and diet quality results persisted in multivariable regression models. CONCLUSIONS: Findings from this study highlight important clinical distinctions in hypertensive Chinese and South Asian immigrant communities with respect to age and body size. Whether targeted and culturally appropriate approaches would reduce cardiovascular disease-related mortality in these groups needs further study.

Fifty years ago, the term model minority was coined to describe the extraordinary ability of Asian Americans to overcome hardship to succeed in American society. Less well-known is how the model minority stereotype was cultivated within the context of Black-White race relations during the second half of the 20th century, and how this stereotype, in turn, has contributed to the understanding and prioritization of health disparities experienced by Asian Americans. The objectives of this article are to define the model minority stereotype, present its controversies, and provide examples of its social and health-related consequences (ie, implications for obesity and tobacco) across multiple levels of society and institutions. A salient theme throughout the examples provided is the limitation of data presented at the aggregate level across all Asian subgroups which masks meaningful disparities. The intent is to increase the visibility of Asian Americans as a racial/ethnic minority group experiencing chronic disease health disparities and deserving of health-related resources and consideration.

OBJECTIVE: Obstructive sleep apnea (OSA) is a leading sleep disorder that is disproportionately more prevalent in minority populations and is a major risk factor for cardiovascular disease (CVD) morbidity and mortality. OSA is associated with many chronic conditions including hypertension, diabetes, and obesity, all of which are disproportionately more prevalent among blacks (ie, peoples of African American, Caribbean, or African descent). METHODS: This article reviews studies conducted in the United States (US) that investigated sleep screenings and adherence to treatment for OSA among blacks. In addition, guidelines are provided for implementing a practical framework to increase OSA screening and management among blacks. RESULTS: Several studies have documented racial/ethnic disparities in adherence to treatment for OSA. However, despite its public health significance, there is a paucity of studies addressing these disparities. Further, there is a lack of health programs and policies to increase screening and treatment of OSA among blacks and other minority populations. A practical framework to increase the number of blacks who are screened for OSA and treated appropriately is warranted. Such a framework is timely and major importance, as early identification of OSA in this high-risk population could potentially lead to early treatment and prevention of CVD, thereby reducing racial and ethnic disparities in sleep-related CVD morbidity and mortality.

PURPOSE: To explore correlates of meeting recommended physical activity (PA) goals among middle-aged and older Korean Americans at risk for diabetes mellitus (DM). DESIGN AND METHODS: PA patterns and their correlates were assessed among 292 middle-aged and older Korean Americans at risk for DM living in New York City using cross-sectional design of baseline information from a diabetes prevention intervention. PA was assessed by self-report of moderate and vigorous activity, results were stratified by age group (45-64 and 65-75 years), and bivariate analyses compared individuals performing less than sufficient PA and individuals performing sufficient PA. Logistic regression was used to calculate adjusted odds ratios predicting sufficient PA. FINDINGS: After adjusting for sex, age group, years lived in the United States, marital status, health insurance, and body mass index (BMI), sufficient PA was associated with male sex, older age, lower BMI, eating vegetables daily, and many PA-specific questions (lack of barriers, confidence, and engagement). When stratified by age group, male sex and eating vegetables daily was no longer significant among Koreans 65 to 75 years of age, and BMI was not significant for either age group. CONCLUSIONS: PA interventions targeting this population may be beneficial and should consider the roles of sex, age, physical and social environment, motivation, and self-efficacy. CLINICAL RELEVANCE: Clinical providers should understand the unique motivations for PA among Korean Americans and recognize the importance of culturally driven strategies to enable lifestyle changes and support successful aging for diverse populations.