Table 2.

Associations Between Environmental/Behavioral Risk Factors and Body Mass Index^a (Continuous) After Adjustment for Sex and Age at Interview, by Race/Ethnicity, Southern Community Cohort Study, 2002–2009

Variable	African Americans (n = 1,173)			Caucasians (n = 1,165)
	βb	95% CI	P Valuec	βb	95% CI	P Valued
Cigarette smoking
Former smoking	−0.020	0.051, 0.011	0.205	0.012	−0.019, 0.043	0.446
Current smoking	−0.093	−0.121, −0.066	<1.00 × 10−10	−0.068	−0.097, −0.038	7.93 × 10−6
Pack-years of smoking	−0.001	−0.002, −0.001	0.001	−0.0005	−0.001, −0.0004	0.033
Physical activity	−0.0005	−0.001, 0.0002	0.157	−0.001	−0.002, −0.0005	0.001
Time spent sitting	0.001	−0.002, 0.004	0.432	0.006	0.004, 0.009	2.41 × 10−6
Time spent sleeping	−0.002	−0.008, 0.004	0.571	0.0005	−0.007, 0.008	0.894
Alcohol consumptione	−0.0007	−0.001, −0.0003	0.0003	−0.0006	−0.001, −0.0002	0.004
Dietary energy intakef	0.0002	−0.002, 0.002	0.815	0.0003	−0.002, 0.002	0.763

Abbreviations: BMI, body mass index; CI, confidence interval.

^aWeight (kg)/height (m)².

^bBeta coefficient from the generalized linear model for the variable indicated, which is the log of the average change in BMI.

^cTest of the association between the risk factor and BMI in African Americans.

^dTest of the association between the risk factor and BMI in Caucasians.

^eAnalyses of alcohol consumption also included adjustment for current smoking.

^fDietary energy intake was divided by 100 in order to reduce the scale and make the coefficients more interpretable.