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

Table 2

Odds ratios (or) and 95% confidence intervals (CI) of PEMCS and relevant covariates included in the final model on overweight status (IOTF) at age 10.

Covariate	Category	Unadjusted OR	95% CI	Adjusted ORa	95% CI
PEMCS	No	1.00	—	1.00	—
	Yes	1.71	[1.23, 2.19]	1.70	[1.20, 2.43]
APGAR score	Other	1.00	—	1.00	—
	High risk	1.75	[1.15–2.66]	1.80	[1.09, 2.98]
Mother’s immigrant status	Non immigrant	1.00	—	1.00	—
	Immigrant	1.29	[0.80, 2.08]	1.80	[1.00, 3.24]
Mother’s weight status	Normal weight	1.00		1.00
	Overweight	2.71	[2.06, 3.58]	2.89	[2.10, 3.99]
Family type	Two parent	1.00	—	1.00	—
	Single-parent	1.60	[1.15, 2.22]	1.62	[1.08, 2.45]
Energy intake	Other (1–4)	1.00	—	1.00	—
	High (5)	2.19	[1.57, 3.05]	2.17	[1.51, 3.13]

a Adjusted for all covariates in the final model: sex, APGAR score, duration of exclusive breastfeeding, immigrant status of the mother, mother’s BMI, energy intake, physical activity, sedentary behaviour, family income, and family type.
Source: Québec Longitudinal Study of Child Development (QLSCD) 1998–2010, Québec Institute of Statistics.