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This work provides an overview of standard social science data sources that now allow some systematic study of the gay and lesbian population in the United States. For each data source, we consider how sexual orientation can be defined, and we note the potential sample sizes. We give special attention to the important problem of measurement error,(More)
OBJECTIVE To compare environmental factors that influence body mass index for age (BMI-for-age) between a sample of American and Czech school-aged children. DESIGN Pilot study. A parent questionnaire and school visits were used to collect data from parents and children. SETTING Public schools in 1 American and 2 Czech cities. PARTICIPANTS Forty-five(More)
OBJECTIVE To compare African-American and white women's knowledge, attitudes, and energy and nutrient intakes related to cardiovascular disease risk. DESIGN The 1989 through 1991 Continuing Survey of Food Intakes by Individuals and the Diet and Health Knowledge Survey (DHKS). SUBJECTS A nationally representative sample of 2,684 white and 449(More)
The prevalence of child obesity in the Czech Republic has increased in the last several years, especially among school-aged children. While obesity trends are closely monitored in the Czech Republic, very little is known about the dietary habits and exercise behaviors of Czech children. The purpose of this study was to evaluate nutrient intakes and physical(More)
High plasma homocysteine (hcy) concentrations may be an independent risk factor for cardiovascular disease. Folic acid supplementation reduces plasma hcy, however no studies used fortified foods and nutrition education to promote a sustained diet change. The effects of nutrition education and fortified cereal consumption on plasma hcy were studied in 41 men(More)
The purpose of this study was to determine the relation between serum and dietary antioxidants, and C-reactive protein (CRP) concentrations in middle-aged and older individuals at risk for cardiovascular disease. We used data from adults aged > or = 40 at increased risk for cardiovascular disease selected from the NHANES III database. The relation between(More)
OBJECTIVE The prevalence of child overweight in the Czech Republic is substantially lower than that in the USA. The objective of the present pilot study was to explore dietary intakes, frequency of dining in fast-food establishments, and the amount and intensity of physical activity between a sample of American and Czech children. DESIGN A cross-sectional(More)
This study summarizes the perceptions towards the Professional Development Portfolio method of recertification and attitude towards professional development of dietetic professionals as measured in the national pilot study of the Portfolio. Portfolio compared to control respondents had greater awareness, and better understanding and knowledge of the(More)