Table 5.

Factors associated with obesity in children aged 5–7 years (n 3783) and 7–11 years (n 3510): cross-sectional survey in primary schools in the Aquitaine region, France, 2007–2009

	5–7-year-old sample			7–11-year-old sample
Variable	OR	95 % CI	P	OR	95 % CI	P
Gender
Male (ref.)
Female	Not in final model		1·9	1·3, 2·8	10−3
Parents’ SES
High (ref.)
Medium	2·0	1·1, 3·8	<10−4	1·6	1·0, 2·5	0·03
Low	3·1	1·6, 6·0		2·0	1·2, 3·5
Eating at the canteen
Never (ref.)
Sometimes	0·4	0·2, 0·7	<10−4	Not in final model
Always	0·5	0·3, 0·8
Breakfast
Always (ref.)
Never or sometimes	Not in final model		2·6	1·1, 5·9	0·02
Morning snack
No (ref.)
Yes	Not in final model		0·5	0·3, 0·9	0·01

Multivariate logistic regression analysis (final model).

ref., referent category; SES, socio-economic status.