Obesity

Contribution of social, behavioral, and contextual exposures to Black‐White disparities in incident obesity: The CARDIA study

Obesity (Silver Spring)Published Prospective cohort study

Authors' conclusion

Adjusting for these exposures accounted for a substantial but incomplete proportion of racial disparities in incident obesity. Remaining differences may be explained by incomplete capture of the most salient aspects of these exposures or potential variation in the impact of these exposures on obesity by race.

Study context

Population
Black or White adults aged 18 to 30 years without obesity at baseline (1985–1986), CARDIA study, followed over 30 years
Participants
4,488 participants
Exposure
Black vs White adults
Outcome
Incident obesity (Black-White differences)
Follow-up
30 years
Methodological detailssex-specific Cox proportional hazard models, adjusted for baseline and time-updated indicators
  • Sex-specific Cox proportional hazard models
  • Adjusted for baseline and time-updated indicators

Main finding

As reported in the abstract

Incident obesity

Times more likely

1.87

95% CI 1.63–2.13

Black women vs White women

Times more likely

1.53

95% CI 1.32–1.77

Black men vs White men

Participants who developed obesity during follow-up
1777

Observational data: associations, not effects.

Further findings

Proportion of racial difference explained by exposures

Baseline exposures explained difference in women
43%
Baseline exposures explained difference in men
52%
Time-updated exposures explained more of the racial difference in women but less for men, vs baseline exposures

Original publication

Contribution of social, behavioral, and contextual exposures to Black‐White disparities in incident obesity: The CARDIA study. Obesity (Silver Spring). Published 11 April 2023. doi:10.1002/oby.23698

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