Prenatal Exposure to Maternal Cigarette Smoke and Offspring Risk of Excess Weight Is Independent of Both Birth Weight and Catch-Up Growth

Table 3

The Odds ratios (OR) and 95% confidence intervals (CI) for the association between overweight (IOTF) at age 10 and PEMCS with adjustment for possible mediators.

	Base model (model 1)a	Adjusted for birth weight (model 2)b	Adjusted for catch-up growth (model 3)c	Adjusted for both (model 4)d
	OR (95% CI)	OR (95% CI)	OR (95% CI)	OR (95% CI)
PEMCS
No	1.00	1.00	1.00	1.00
Yes	1.70 (1.19–2.43)	1.76 (1.23–2.51)	1.64 (1.15–2.33)	1.73 (1.21, 2.48)

a Adjusted for: sex, APGAR score, duration of exclusive breastfeeding, immigrant status of the mother, mother’s BMI, energy intake, level of physical activity, level of sedentary behaviour, family income, and family type.
bAdjusted for all variables listed for model 1 with the addition of birth weight.
cAdjusted for all variables listed for model 1 with the addition of catch-up growth.
dAdjusted for all variables listed for model 1 with the addition of birth weight and catch-up growth.
Source: Québec Longitudinal Study of Child Development (QLSCD) 1998–2010, Québec Institute of Statistics.