Table 1.
Respondents and nonrespondents to the two-year follow-up questionnaire from the PELAGIE mother–child cohort
| Variable | Analyzed subcohort | Nonrespondents | |
|---|---|---|---|
| n = 935 | n = 2370 | ||
| N (%) | N (%) | p-Value1 | |
| Maternal BMI at inclusion (kg/m²) 2 | |||
| <18.5 | 62 (6.6) | 181 (7.7) | 0.4 |
| 18.5 ≤ BMI <25 | 720 (76.3) | 1741 (74.2) | |
| 25 ≤ BMI <30 | 122 (12.9) | 302 (12.9) | |
| ≥30 | 40 (4.2) | 123 (5.2) | |
| Maternal age at inclusion (years) | |||
| <30 | 423 (44.7) | 1269 (53.5) | <0.0001 |
| 30 ≤ age < 35 | 371 (39.2) | 790 (33.3) | |
| ≥35 | 152 (16.1) | 311 (13.1) | |
| Nulliparous 3 | |||
| Yes | 386 (40.9) | 1083 (45.9) | 0.008 |
| No | 559 (59.2) | 1276 (54.1) | |
| Maternal level of education 4 | |||
| Primary or secondary education | 124 (13.1) | 500 (21.2) | <0.0001 |
| Baccalaureate | 161 (17.0) | 462 (19.6) | |
| Higher education | 660 (69.8) | 1401 (59.1) | |
| Maternal smoking at inclusion 5 | |||
| Non smoker | 732 (78.0) | 1623 (69.3) | <0.0001 |
| <10 cig/day | 142 (15.1) | 469 (20.0) | |
| ≥10 cig/day | 64 (6.8) | 249 (10.6) | |
| Maternal alcohol consumption at inclusion 6 | |||
| Yes | 138 (14.7) | 345 (14.8) | 1.0 |
| No | 798 (85.2) | 1193 (85.2) | |
| Gender | |||
| Male | 485 (51.3) | 1186 (50.0) | 0.5 |
| Female | 461 (48.7) | 1184 (50.0) | |
| Cesarean delivery (vs. vaginal) 7 | 156 (16.8) | 411 (17.8) | 0.5 |
| Preterm birth ( < 37 weeks) 8 | |||
| Yes | 30 (28.6) | 93 (4.0) | 0.3 |
| No | 912 (96.1) | 2262 (96.0) | |
| Low birth weight ( < 10% for gestational age) 9 | |||
| Yes | 59 (6.3) | 156 (6.6) | 0.7 |
| No | 885 (93.8) | 2212 (93.4) | |
BMI body mass index (kg/m2)
1—chi-square test; Missing data: 2—n = 25; 3—n = 12; 4—n = 8; 5—n = 37; 6—n = 42; 7—n = 73; 8—n = 19; 9—n = 4