Abstract
PURPOSE: African Americans have higher rates of obesity than white Americans. Our analyses will ascertain whether greater weight gain in African Americans is due to Education, Income, Occupation, or Childhood Socioeconomic Position (SEP). Interactions between race and the measures of SEP will be examined to identify race/SEP groups that may be at particularly high risk of weight gain. The role of marital status, number of children, physical activity, eating habits, smoking, alcohol consumption, depression, boredom, and sleep patterns in generating race differences will also be examined. This investigation is the first to examine racial differences in obesity over a long time period (34 years), to utilize four measures of SEP in analysis or risk factors, and to include a measure childhood SEP. METHODS: Data collected over 34 years, from the Alameda County Study will be analyzed using mixed models to examine the association between race, baseline weight, and weight change slopes in men (n = 1213) and women (n = 1442) aged 18–40. PRELIMINARY RESULTS: The initial analysis of race differences revealed that African American men had higher baseline weight (+2.53 kg, p = 0.004) but did not gain significantly more weight (+0.02 kg/year, p = 0.6855) than white men. African American women had higher baseline weight (+4.95 kg, p < .0001) and gained more weight (+0.10kg/year, p = 0.0271) than white women. Controlling for Childhood SEP attenuated the race difference in baseline weight for men by 29.2%. In women the racial difference in baseline weight was attenuated by 5%, and the racial difference in weight gain was reduced by 10%. Further analyses will be complete by the time of the conference.
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