Table 1 Characteristics of pregnant women included in this study and their infants
| Â | Discovery stage (JPA NEO) | Replication stage (JPAv2) |
|---|---|---|
n | 9464 | 10,051 |
Age (years) | 31.2 ± 5.0 | 31.2 ± 5.0 |
Height (cm) | 158.4 ± 5.4 | 158.4 ± 5.3 |
Pre-pregnancy weight (kg) | 53.5 ± 9.0 | 54.0 ± 9.2 |
Gestational age at acquisition of the NVP variable (weeks) | 21.3 ± 9.7 | 19.6 ± 8.5 |
NVP | Â | Â |
 No | 1360 (14.4) | 1439 (14.3) |
 Nausea only | 4144 (43.8) | 4481 (44.6) |
 Vomited but could eat | 2897 (30.6) | 3102 (30.9) |
 Vomited and could not eat | 1063 (11.2) | 1029 (10.2) |
Parity | Â | Â |
 Never | 4311 (45.6) | 5166 (51.4) |
 One or more | 5142 (54.3) | 4861 (48.4) |
 Missing | 11 (0.1) | 24 (0.2) |
Infant sex | Â | Â |
 Male | 4827 (51.0) | 5200 (51.7) |
 Female | 4558 (48.2) | 4833 (48.1) |
 Missing | 79 (0.8) | 18 (0.2) |
Gestational age at delivery | Â | Â |
 < 37 weeks | 592 (6.3) | 559 (5.6) |
 37–41 weeks | 8713 (92.1) | 9434 (93.9) |
 ≥ 42 weeks | 9 (0.1) | 14 (0.1) |
 Missing | 150 (1.6) | 44 (0.4) |
HDP | Â | Â |
 Yes | 388 (4.1) | 493 (4.9) |
 No | 8965 (94.7) | 9530 (94.8) |
 Missing | 111 (1.2) | 28 (0.3) |
GDM | Â | Â |
 Yes | 239 (2.5) | 228 (2.3) |
 No | 9114 (96.3) | 9795 (97.5) |
 Missing | 111 (1.2) | 28 (0.3) |