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. Author manuscript; available in PMC: 2015 Nov 2.
Published in final edited form as: Stat Med. 2014 Nov 10;34(4):595–612. doi: 10.1002/sim.6357

Table III.

Binary logistic regression analysis of disparity in obesity among non-pregnant women (>20 years) by race groups.

Group Sample size Observed prevalence of obesity Predicted prevalence of obesity Unexplained disparity (SE)1 Percent of disparity explained2 F value P value
White 2647 30.78% 30.78% 0
Black 1013 52.08% 36.33% −15.75% (0.020) 26% 86.64 < 0.0001
Hispanic 1379 37.41% 36.41% −0.99% (0.022) 85% 0.30 0.59
Overall 39.82 < 0.0001
1

Unexplained disparity is (Observed prevalence of obesity (White) – predicted prevalence of obesity (Black or Hispanic))

2

Percent disparity explained is (1– unexplained disparity)/(observed prevalence of obesity(White) – observed prevalence of obesity (Black or Hispanic))*100