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“National Health and Nutrition Examination Survey”
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Seo BosuCorresponding author University of the Fraser Valley, British Columbia, Canada
Greater social capital has been shown to be associated with improved mental health, general wellbeing and reduced risk of premature mortality, cancer mortality and cardiovascular mortality. However, most of these studies found a positive relationship between social capital and health are limited to descriptive studies. This project is performing a theoretical approach to the role of social capital in producing health outcome based on Becker’s household production function. We are testing whether social capital has a positive impact on health both directly through a more effective production of health and indirectly through utilizing the health care system better, using several measurements of social capital from ‘social support’ module in the National Health and Nutrition Examination Survey (NHANES) 2007-2008 for a sample of those 60 years old and above. NHANES is a unique data set in terms of collecting both subjective self-rated health status and several objective health outcome measurement through medical and laboratory examination. Finding from 2SLS with instrumental variable was a bit surprising – various social capital measures do not show significant results in different experiments. The only exception is that more resources of emotional support can promote better overall health status.
Lifestyle modification has been shown to improve cardiovascular health. This cross-sectional study investigated the association of number of healthy lifestyle behaviors with hypertension across racial/ethnic categories using the National Health and Nutrition Examination Survey 2007-2010. The study population consisted of 4,363 individuals aged 40 years or older. Low risk lifestyle behaviors were assessed to obtain a health behavior score ranging from 0 to 5. Hypertension was defined based on average blood pressure measurements or current use of antihypertensive medication. The overall hypertension prevalence was 41%, with the highest prevalence in blacks (54%) and lowest in Mexican Americans (35%). Based on multivariable-adjusted logistic regression the odds of hypertension were significantly lower for whites with 3 (OR=0.56, 95% CI: 0.40, 0.77) and 4-5 (OR=0.53, 95% CI: 0.35, 0.80) healthy lifestyle behaviors, and for blacks who had 4-5 (OR=0.35, 95% CI: 0.18, 0.72) vs. 0-1 healthy lifestyle behaviors. There was no statistically significant association between number of healthy lifestyle behaviors and odds of hypertension in Mexican Americans. These results suggest that healthy lifestyle behaviors are associated with lower prevalence of hypertension in whites and blacks, but additional research is needed to identify protective factors for Mexican Americans.