Table 1 Characteristics of the study population (PELAGIE mother-child cohort, France, N = 459)
N | Mean (SD) or N (%) | |
|---|---|---|
Mother’s characteristics at inclusion | ||
Age (years) | 459 | 31.1 (3.9) |
Education (years) | 458 | |
< 12 | 41 (9.0) | |
12 | 64 (14.0) | |
≥ 12 | 353 (77.1) | |
BMI (kg/m²) | 458 | |
<18.5 | 27 (5.9) | |
18.5 - < 25 | 363 (79.3) | |
25 - < 30 | 50 (10.9) | |
30 or more | 18 (3.9) | |
Tobacco status | 456 | |
Non or former smoker | 367 (80.5) | |
< 10 cig/day | 70 (15.4) | |
≥ 10 cig/day | 19 (4.2) | |
Parity | 459 | |
Primiparous | 186 (40.5) | |
Multiparous | 273 (59.5) | |
Geographic origin of mother’s parents | 459 | |
European | 454 (98.9) | |
Non european | 5 (1.1) | |
Marital status at inclusion | 459 | |
In couple | 457 (99.6) | |
Live alone | 2 (0.4) | |
Exposure to solvents | 459 | |
None | 230 (50.1) | |
Occasional | 88 (19.2) | |
Regular | 141 (30.7) | |
Child’s characteristics | ||
Birth weight (grams) | 458 | 3449.6 (458.2) |
Gestational age (weeks) | 458 | 39.6 (1.2) |
Sex at birth | 459 | |
Boys | 236 (51.4) | |
Girls | 223 (48.6) | |
Breastfeeding | 459 | |
None | 125 (27.2) | |
< 6 months | 221 (48.1) | |
≥ 6 months | 113 (24.6) |