Pregnancy-related outcome in all single pregnancies among female patients with ASD compared with the general population
| Variable | Single pregnancies patients with ASD n=519 | Single pregnancies references n=6324 | P value |
| Gestational age, days (mean±SD) | 277.5±13.4 | 278.7±13.1 | 0.048 |
| Midwife visits, n | 5.0 | 4.9 | 0.444 |
| Physicians visits, n | 3 | 3 | 0.135 |
| Specialists visits, n (min-max) | 2 (0–9) | 1 (0–9) | <0.001 |
| PPROM, n (%) | 24 (4.6) | 270 (4.3) | 0.653 |
| Placenta previa, n (%) | 3 (0.6) | 25 (0.04) | 0.001 |
| Placental weight, g (mean±SD) | 635.3±215.7 | 651.5±180.3 | 0.055 |
| Polyhydramnios, n (%) | 4 (0.8) | 39 (0.6) | 0.565 |
| Pre-eclampsia, n (%) | 35 (6.7) | 142 (2.3) | <0.001 |
| Sectio, n (%) | 114 (22.0) | 1160 (18.3) | 0.046 |
| Sectio mothers wish, n (%) | 13 (2.5) | 107 (1.7) | 0.165 |
| Placenta accreta, n (%) | 5 (1) | 41 (0.7) | 0.394 |
| Hemoperitoneum, n (%) | 2 (0.4) | 17 (0.3) | 0.651 |
| Intrauterine asphyxia, n (%) | 4 (0.8) | 66 (1) | 0.819 |
| Placental abruption, n (%) | 6 (1.1) | 36 (0.6) | 0.131 |
Gestational age was slightly lower in the patients with ASD (277.5±13.4 vs 278.7±13.1; p=0.048).
ASD, atrial septal defect ; PPROM, preterm prelabour rupture of membranes.