Table 3.

Multivariate models for predictors of body mass index in the CARDIA study stratified by gender (β,95%  CI)¹.

Variable	Men			Women
	Model 1	Model 2	Model 3	Model 1	Model 2	Model 3
Sleep (h)	−0.20	−0.20	−0.14	−0.33	−0.29	−0.17
	(−0.40, 0.002)	(−0.41, 0.01)	(−0.34, 0.07)	(−0.53, −0.13)*	(−0.50, −0.09)*	(−0.37, 0.02)
Age (yrs)	0.003	0.004	−0.02	0.12	0.13	0.12
	(−0.06, 0.07)	(−0.07, 0.07)	(−0.09, 0.05)	(0.05,0.20)*	(0.06,0.20)*	(0.05,0.19)*
Race	−0.72	−1.17	−1.40	−4.49	−3.28	−3.14
(White versus Black)	(−1.23, −0.22)*	(−1.72, −0.62)*	(−1.94, −0.86)	(−5.03, −3.94)*	(−3.88, −2.68)*	(−3.72, −2.57)*
Current smoker		−1.54	−1.54		−0.47	−0.50
(Yes versus No)		(−2.18, −0.89)*	(−2.17, −0.91)*		(−1.17, 0.23)	(−1.17, 0.18)
Number		−0.06	−0.06		−0.09	−0.06
drinks/week		(−0.10, −0.03)*	(−0.09, −0.02)*		(−0.15, −0.03)*	(−0.11, 0.0005)
Education (yrs)		−0.12	−0.15		−0.32	−0.30
		(−0.23, −0.009)*	(−0.26, −0.04)*		(−0.44, −0.19)*	(−0.42, −0.18)*
Income		0.20	0.21		−0.33	−0.25
(ordinal 1–9)		(0.04,0.35)*	(0.06, 0.36)		(−0.47, −0.18)*	(−0.40, −0.11)*
Work full-time		−0.06	0.18		0.65	0.71
(Yes versus No)		(−0.83, 0.71)	(−0.57, 0.93)		(0.08,1.21)*	(0.17, 1.25)
Physical activity			−1.04			−1.57
			(−1.27, −0.81)*			(−1.80, −1.33)*

¹Beta (β) coefficients reported are unstandardized estimated regression coefficients calculated using predictor variables after they have been transformed and then rescaled via linear transformations to their original mean and variance.

*P < .05.