Table 2.

Coefficients From the Mixed-Effects Models Predicting Physical-Activity Level From Sex, Early-Life SECs, and the Interaction Between Sex and Early-Life SECs

	Model 1		Model 2		Model 3		Model 4a		Model 4b
Variable	OR [95% CI]	p	OR [95% CI]	p	OR [95% CI]	p	OR [95% CI]	p	OR [95% CI]	p
Sex (reference = men)	0.69 [0.66, 0.72]	< .001			0.87 [0.76, 1.01]	.061	0.78 [0.74, 0.82]	< .001
Early-life SEC
Number of books  (reference = more than 10)			0.76 [0.72, 0.80]	< .001	0.82 [0.76, 0.89]	< .001	0.87 [0.82, 0.92]	< .001
Occupational position of the  main breadwinner  (reference = high skills)			0.87 [0.81, 0.93]	< .001	0.95 [0.86, 1.06]	.383	0.97 [0.90, 1.04]	.332
Overcrowding (reference =  no)			0.96 [0.90, 1.02]	.188	0.99 [0.90, 1.08]	.805	1.02 [0.96, 1.08]	.608
Housing quality  (reference = high)			1.04 [0.98, 1.10]	.173	1.05 [0.96, 1.14]	.289	1.12 [1.05, 1.18]	< .001
Early-Life SEC × Sex
Sex (reference = men) ×  Number of Books  (reference = more than 10)					0.88 [0.79, 0.98]	.019			0.91 [0.82, 1.01]	.091
Sex (reference = men) ×  Occupational Position  of the Main Breadwinner  (reference = high skills)					0.84 [0.73, 0.97]	.014			0.83 [0.73, 0.95]	.009
Sex (reference = men) ×  Overcrowding  (reference = no)					0.97 [0.86, 1.09]	.633			0.96 [0.86, 1.08]	.544
Sex (reference = men) ×  Housing Quality  (reference = high)					0.99 [0.89, 1.11]	.891			1.00 [0.89, 1.12]	.996

Note: All models were adjusted for age, body max index, attrition, birth cohort, and country of residence. Models 4a and 4b were also adjusted for adult-life socioeconomic circumstance (SEC) mediators (i.e., participants’ highest educational attainment during the follow-up, main occupational position, and satisfaction with current household income). Model 4b included interaction terms between sex and early-life SECs. For the full results, see Table S2 in the Supplemental Material available online. OR = odds ratio; CI = confidence interval.