Presentation Abstract

Session: P03-Ethnic Disparities
Thursday, Mar 24, 2011, 5:00 PM - 7:00 PM
Presentation: P226 - Prevalence of Hypertension, Awareness, Treatment and Control - Preliminary Results from the Hispanic Community Health Sudy-Study of Latinos
Location: P226
Pres. Time: Thursday, Mar 24, 2011, 5:00 PM - 7:00 PM
Category: +EPI - Ethnic Disparities
Keywords: Blood pressure; Hypertension; Health disparities
Author(s): Paul D Sorlie, Natl Heart, Lung, and Blood Inst, Bethesda, MD; Lisa LaVange, Univ of North Carolina, Chapel Hill, NC; Matthew Allison, Univ of California at San Diego, La Jolla, CA; Larissa Avilés-Santa, Natl Heart, Lung, and Blood Inst, Bethesda, MD; Martha Daviglus, Northwestern Univ, Chicago, IL; Annie Green Howard, Univ of North Carolina, Chapel Hill, NC; Robert Kaplan, Albert Einstein Coll of Med, Bronx, NY; Donald Lloyd-Jones, Northwestern Univ, Chicago, IL; Leopoldo Raij, Neil Schneiderman, Univ of Miami, Miami, FL; Sylvia Smoller, Albert Einstein Coll of Med, Bronx, NY; Gregory Talavera, San Diego State Univ, San Diego, CA
Abstract: Background Hypertension can be effectively prevented by healthy life style and, when diagnosed, controlled with medications. Analyses of national data from NHANES show that Mexican Americans have the poorest rates of hypertension awareness, treatment, and control (A/T/C) compared to non-Hispanic whites and blacks. Using preliminary data from the Hispanic Community Health Study-Study of Latinos (HCHS-SOL), the prevalence of hypertension and the rates of A/T/C are described below. Methods The HCHS-SOL is a cohort study of Hispanics/Latinos living in four communities (Bronx, Chicago, Miami, and San Diego) with participants from diverse cultural and genetic origins. The study is currently recruiting participants selected via a two-stage area household probability design with a goal of 16,000 persons. This preliminary analysis describes results from 7041 persons who have responded to the first wave of community sampling, have attended clinic visits, and have known values for these analyses. Participants in the HCHS-SOL self-identify as Cuban, Dominican, Puerto Rican, Mexican, Central or South American (with country specified). Blood pressure is measured with an automated device using a standard protocol. Hypertension is defined as systolic/diastolic blood pressure equal to or greater than 140/90 mm Hg or on antihypertensive medications. Design-based estimates of prevalence are presented. Results Overall, in this cross-sectional analysis, the prevalence of hypertension rises steadily with age, from 9% in those 18-29 to 75% in those 70-74 years of age. Age-adjusted prevalence is the same in men and women (32%), slightly higher than in NHANES Mexican Americans (26% in men, 28% in women). Age-adjusted prevalence of hypertension varies by group (South American 22%, Mexican 28%, Central American 31%, Cuban 36%, Puerto Rican 37%, Dominican 43%). The overall percent of participants who are aware of their hypertension is 82%, with modest differences by Hispanic/Latino group (80% - 88%). Percent of participants with hypertension who are treated is 50% (range by group 43% to 60%). Percent of participants with hypertension who are controlled is 32% (range by group 24% to 35%). As a reference, the prevalence rates of A/T/C for those of Mexican origin in NHANES (1999-2004) are 61%, 47%, and 24%. Conclusions In this sample of Hispanics/Latinos, wide variations exist in the prevalence of hypertension by Hispanic/Latino group which may reflect differences in migration history, length of time in the US, degree of acculturation, access to health insurance, utilization of health services, economic status, obesity, diet, activity levels or other factors. Evaluation of these potential causes will be undertaken with additional data acquisition.
Disclosures:  P.D. Sorlie: None. L. LaVange: None. M. Allison: None. L. Avilés-Santa: None. M. Daviglus: None. A. Green Howard: None. R. Kaplan: None. D. Lloyd-Jones: None. L. Raij: None. N. Schneiderman: None. S. Smoller: None. G. Talavera: None.