Table 1 Characteristics of the study population at inclusion
Intervention group (n = 429) | Control group (n = 426) | |
|---|---|---|
Age (years) | 30.5 ± 4.4 | 30.4 ± 4.3 |
Weight (kg)a | 70.4 ± 9.8 | 70.8 ± 10.3 |
Body Mass Index (kg/m2)a | 24.7 ± 3.0 | 25.0 ± 3.4 |
Gestational week at baseline sampling | 20.3 ± 1.5 | 20.3 ± 1.7 |
Marital status | ||
Married/cohabitantb | 413 (96.3) | 421 (98.8) |
Single | 15 (3.5) | 5 (1.2) |
Education level | ||
Elementary school | 3 (0.7) | 2 (0.5) |
High School | 39 (9.1) | 51 (12.0) |
University | 387 (90.2) | 373 (87.6) |
Paid work or self-employeda | 405 (94.4) | 393 (92.3) |
Parity | ||
0 | 247 (57.6) | 239 (56.1) |
1 | 125 (29.1) | 129 (30.3) |
2 | 45 (10.5) | 45 (10.6) |
≥ 3 | 12 (2.8) | 13 (3.0) |
Smoking | 7 (1.6) | 2 (0.5) |
State of health | ||
Excellent or good | 384 (89.5) | 376 (88.3) |
Fair | 40 (9.3) | 45 (10.6) |
Poor | 5 (1.2) | 5 (1.2) |
Exercise regularly | 228 (53.1) | 216 (50.7) |