Table 1 Maternal Sociodemographic and Clinical Characteristics at Study Enrolment
Parameters | Global (n = 1159) | Intervention group (583) | Control group (576) | p |
|---|---|---|---|---|
Maternal age, years | 0.81 | |||
 Median (Min–Max) | 21 (14–40) | 21 (15–38) | 21 (14–40) |  |
Education levela | % (n = 1157) | (n = 582) | (n = 575) | 0.18 |
 Low | 53.5 (619) | 51.4 (299) | 55.7 (320) |  |
 Mean | 27.8 (322) | 30.2 (176) | 25.3 (146) |  |
 High | 18.7 (216) | 18.4 (107) | 19.0 (109) |  |
GA at inclusion (weeks) Median (Min, Max) | 12.6 (5.4–16.1) | 12.6 (5.4–16.0) | 13.0 (6.0–16.1) | 0.809 |
History of alcohol use | 9.5 (110) | 10.2 (59) | 8.9 (51) | 0.46 |
Cigarette smoking history | 0.4 (5) | 0.3 (2) | 0.5 (3) | 0.69 |
SBP mm Hg |  | 107.05 ± 79 | 106.9 ± 97 | 0.79 |
DBP mm Hg |  | 67.32 ± 10 | 67.15 ± 79 | 0.73 |
Measurement of 25(OH)D at inclusion |  | 34.20 ± 11.9 | 35.61 ± 12.7 | 0.051 |
Ionised calcium at inclusion |  | 1.16 ± 0.16 | 1.19 ± 0.16 | 0.005 |