Frightening symptoms (2006-2009) n = 28174 | Polysomno-graphy ordered (2006-2009) n = 30675 | Abnormal polysomno-graphy (2006-2009) n = 2406 | Home monitoring (2006-12) n = 49275 | Psychomotor delay (2006-2012) n = 55180 | BMI < p3 / ≥ p3- ≤97 (thinness) (2006-2012) n = 50810 | BMI > 97 / ≥ p3- ≤97 (overweight) (2006-2012) n = 53978 | |
---|---|---|---|---|---|---|---|
Variables | % | % | % | % | % | % | % |
Mother’s age at birth (years) | |||||||
≥ 38 | 5.3 | 10.9 | 9.4 | 3.5 | 1.7 | 0.9 | 8.8 |
18-37 | 4.3 | 8.8 | 21.8 | 2.9 | 1.6 | 0.9 | 6.7 |
< 18 | 6.3 | 9.1 | 25.3 | 3.6 | 2.1 | 1.2 | 7.5 |
P-value[a] | 0.06 | 0.6 | 0.2 | 0.08 | 0.583 | 0.3 | 0.03 |
Mother’s level of education | |||||||
Higher education | 3.7 | 8.8 | 22.8 | 3.3 | 1.4 | 1.0 | 4.6 |
Upper secondary education | 1.4 | 9.1 | 20.4 | 2.9 | 1.5 | 0.9 | 7.0 |
Lower secondary education | 5.4 | 9.4 | 21.9 | 3.0 | 1.7 | 0.7 | 8.8 |
< lower secondary education | 5.0 | 7.0 | 26.8 | 3.0 | 2.6 | 1.0 | 10.7 |
P-value[a] | < 0.001 | 0.02 | 0.3 | 0.9 | < 0.001 | 0.1 | < 0.001 |
Mother’s French language level | |||||||
Proficient | 4.6 | 9.5 | 21.8 | 3.1 | 1.6 | 0.9 | 6.4 |
Basic | 2.2 | 2.7 | 28.3 | 1.3 | 1.4 | 0.4 | 10.9 |
None | 2.7 | 1.6 | 44.4 | 1.3 | 2.3 | 0.9 | 10.2 |
P-value[a] | < 0.001 | < 0.001 | 0.2 | < 0.001 | 0.067 | 0.01 | < 0.001 |
Child’s gender | |||||||
Female | 4.2 | 8.6 | 20.4 | 2.8 | 1.5 | 1.1 | 5.5 |
Male | 4.6 | 9.2 | 23.2 | 3.1 | 1.8 | 0.7 | 7.9 |
P-value[a] | 0.1 | 0.6 | 0.09 | 0.06 | 0.004 | < 0.001 | < 0.001 |
Child’s age (months) | |||||||
6-8 | 4.3 | 8.8 | 21.4 | 2.9 | 1.4 | 0.9 | 6.5 |
9-10 | 4.4 | 9.0 | 22.1 | 3.0 | 1.8 | 0.9 | 6.9 |
11-12 | 4.1 | 9.1 | 24.1 | 3.4 | 2.6 | 1.2 | 6.8 |
P-value[a] | 0.8 | 0.8 | 0.8 | 0.3 | <0.001 | 0.3 | 0.2 |
Birth weight | |||||||
≥2500 g | 3.2 | 7.4 | 19.1 | 2.1 | 1.4 | 0.8 | 6.9 |
<2500 g | 21.2 | 29.5 | 32.2 | 14.4 | 4.0 | 2.3 | 4.6 |
P-value[a] | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 |
Exclusive Breastfeeding | |||||||
Some time and still breastfed | 2.8 | 4.9 | 31.2 | 2.2 | 1.4 | 0.8 | 9.9 |
Some time | 3.8 | 8.2 | 21.1 | 2.6 | 1.4 | 0.9 | 6.5 |
Never | 6.3 | 11.6 | 22.6 | 4.2 | 2.2 | 1.0 | 6.8 |
P-value[a] | < 0.001 | < 0.001 | 0.1 | < 0.001 | < 0.001 | 0.3 | < 0.001 |
Smoking in the house ( 2006-09 ) | (n = 28147) | (n = 27547) | (n = 2167) | (22868) | (n = 27962) | (n = 25693) | (n = 27310) |
No | 3.8 | 8.4 | 20.8 | 2.8 | 1.4 | 0.9 | 6.4 |
Yes | 6.2 | 10.4 | 21.9 | 3.8 | 2.0 | 0.9 | 8.1 |
P-value[a] | < 0.001 | < 0.001 | 0.6 | < 0.001 | <0.001 | 1.0 | < 0.001 |