Table 1 Maternal and neonatal characteristics of the study participants (n = 13249) according to mother’s marital status
Married | Unmarried | |
|---|---|---|
Mean (SD)/n (%) | Mean (SD)/n (%) | |
n = 12612 | n = 637 | |
Mother | ||
Height (m) | 159.9 (5.6) | 159.1 (6.5) |
Weight (kg) | 67.1 (8.3) | 65.5 (8.1) |
Body mass index (kg/m2) | 26.2 (2.9) | 25.9 (2.6) |
Age (years) | 28.5 (5.4) | 26.5 (5.8) |
Neonate | ||
Birth weight (g) | 3413.2 (478.4) | 3274.7 (465.6) |
Head circumference (cm) | 35.0 (1.5) | 34.7 (1.5) |
Birth length (cm) | 50.3 (1.9) | 49.8 (2.0) |
Ponderal index (kg/m3) | 26.8 (2.2) | 26.5 (2.5) |
Gestational age (days) | 279.6 (12.9) | 277.0 (16.7) |
Birth order, first born | 5929 (47.0 %) | 495 (77.7 %) |
Paternal occupationa (highest) n = 12946 | n = 12612 | n = 334 |
Senior clerical | 2170 (17.2 %) | 53 (15.9 %) |
Junior clerical | 3073 (24.4 %) | 64 (19.2 %) |
Worker | 7369 (58.4 %) | 217 (65.0 %) |
Maternal occupation (highest) n = 11819 | n = 11182 | n = 637 |
Senior clerical | 484 (4.3 %) | 13 (2.0 %) |
Junior clerical | 4363 (39.0 %) | 141 (22.1 %) |
Worker | 6339 (56.7 %) | 483 (75.8 %) |
Rooms in childhood household n = 9383 | n = 8927 | n = 456 |
1 room | 3530 (39.5 %) | 266 (58.3 %) |
2 rooms | 3938 (44.1 %) | 146 (32.0 %) |
3 rooms | 1124 (12.6 %) | 37 (8.1 %) |
4 or more rooms | 335 (3.8 %) | 7 (1.5 %) |
Habitants in childhood household n = 8321 | n = 7933 | n = 388 |
2 habitants | 179 (2.3 %) | 58 (14.9 %) |
3 habitants | 3448 (43.4 %) | 149 (38.3 %) |
4 habitants | 2519 (31.7 %) | 97 (24.9 %) |
5 or more habitants | 1787 (22.5 %) | 84 (21.6 %) |
Temporary evacuation abroad to a foster family during World War II (n = 13062) | 1671 (13.4 %) | 99 (15.8 %) |