TABLE 4.

Regressions of offspring BMI, total fat, truncal fat and total lean mass at mean age 9.9 years on maternal and partner smoking

	BMI (SD score)			Total fat (SD score)			Truncal fat (SD score)			Truncal fat (SD score) #			Total lean (SD score)
	β	95% CI	p	β	95% CI	p	β	95% CI	p	β	95% CI	p	β	95% CI	p
Maternal smoking (any trimester) in subgroup with partner smoking recorded
Model 1 (N=5615)	0.17	0.11, 0.24	<0.001	0.17	0.11, 0.22	<0.001	0.19	0.13, 0.24	<0.001	0.03	0.00, 0.05	0.03	0.07	0.03, 0.10	<0.001
Model 2 (N=3649)	0.20	0.12, 0.28	<0.001	0.18	0.11, 0.25	<0.001	0.19	0.12, 0.26	<0.001	0.02	−0.01, 0.05	0.1	0.08	0.03, 0.12	0.002
Model 3 (N=3606)	0.24	0.16, 0.32	<0.001	0.19	0.12, 0.26	<0.001	0.20	0.12, 0.27	<0.001	0.02	−0.01, 0.05	0.2	0.10	0.05, 0.15	<0.001
Partner smoking
Model 1 (N=5615)	0.15	0.09, 0.20	<0.001	0.12	0.07, 0.17	<0.001	0.13	0.09, 0.18	<0.001	0.01	−0.01, 0.03	0.4	0.04	0.01, 0.08	0.004
Model 2 (N=3649)	0.11	0.05, 0.18	0.001	0.08	0.02, 0.14	0.006	0.08	0.03, 0.14	0.005	−0.002	−0.03, 0.02	0.9	0.04	0.01, 0.08	0.03
Model 3 (N=3606)	0.11	0.05, 0.18	0.001	0.08	0.02, 0.14	0.01	0.08	0.03, 0.14	0.005	−0.004	−0.03, 0.02	0.7	0.05	0.01, 0.08	0.02
Maternal and partner smoking (model 1 – simultaneous)
Mother	0.13	0.06, 0.20	<0.001	0.13	0.07, 0.20	<0.001	0.15	0.09, 0.21	<0.001	0.03	0.001, 0.05	0.04	0.06	0.02, 0.10	0.004
Partner	0.11	0.05, 0.17	<0.001	0.08	0.03, 0.13	0.001	0.09	0.04, 0.14	<0.001	−0.0001	−0.02, 0.02	0.99	0.03	−0.004, 0.06	0.09

Model 1 adjusted for sex and child's age at DXA scan

Model 2 additionally adjusted for maternal, partner, social and infant feeding factors

Model 3 additional adjusted for birthweight and gestation

Total fat, truncal fat and total lean adjusted for height and height squared

^#Truncal fat adjusted for total fat in all models