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PURPOSE: To assess the role of serum folate in the risk for coronary heart disease in a national cohort of US adults. METHODS: Data from the First National Health and Nutrition Examination Survey Epidemiologic Follow-up Study (N = 1921) were used to determine whether a low serum folate...
PURPOSE: A survey to establish both the need and subject areas for a possible new set of ethics guidelines for epidemiologists was conducted among a random sample of 300 North American (Canada, Mexico, and United States) members of three major United States-based professional epidemiology...
PURPOSE: The positive association between obesity and blood pressure has been less consistent in African Americans than whites. This is especially true for African American men. This study investigated the sex-specific associations between baseline body mass index (BMI), weight change...
PURPOSE: This study examined the association between maternal smoking before and during the first trimester of pregnancy and spontaneous abortion. METHODS: We have been conducting a hospital-based case-control study on risk factors for spontaneous abortion in the greater Milan area. We collected...
PURPOSE: To estimate the effect of several types of maternal physical activity in pregnancy on size for gestational age and length of gestation. METHODS: Telephone interviews, birth certificates, and medical records provided data on physical activity and other factors for a random sample of 291...
PURPOSE: This community-based study in Anhui, China examined the sex-specific pattern of blood pressure (BP) and its major determinants between age 3 and 24 years. METHODS: BP, height, weight, and related covariates were obtained from all eligible subjects by consistent methods. A generalized...
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