Table 2.
Obstetrical and delivery characteristics by fertility treatments
| Obstetrical and delivery characteristics | Group 1: IVF/ICSI (n = 310) | Group 2: IUI/OI (n = 150) | p value |
|---|---|---|---|
| Gestational age at time of delivery (weeks) | 0.001 | ||
| < 28 | 10 (3.2) | 5 (3.3) | |
| 28–31 | 30 (9.7) | 2 (1.3) | |
| ≥ 32 | 270 (87.1) | 143 (95.3) | |
| Delivery route | 0.46 | ||
| Cesarean delivery | 189 (61.4) | 86 (57.7) | |
| Vaginal delivery | 119 (38.6) | 63 (42.3) | |
| Reason for cesarean delivery | 0.006 | ||
| CPD, failed induction, abnormal presentation | 104 (55.6) | 49 (57.0) | |
| Non-reassuring fetal status, cord prolapse | 9 (4.8) | 6 (7.0) | |
| Previous cesarean delivery | 8 (4.3) | 12 (14.0) | |
| Elective | 4 (2.1) | 2 (2.3) | |
| Other | 32 (17.1) | 6 (7.0) | |
| Treated with betamethasone | 70 (22.6) | 38 (25.3) | 0.51 |
| Type of labor | 0.03 | ||
| Spontaneous | 119 (39.0) | 58 (38.9) | |
| Induced | 63 (20.7) | 46 (30.9) | |
| No labor | 123 (40.3) | 45 (30.2) | |
| Length of labor (spontaneous vaginal deliveries) | 0.24 | ||
| 0 ≤ 8 h | 45 (62.5) | 14 (48.3) | |
| 8–24 h | 25 (34.7) | 15 (51.7) | |
| > 24 h | 2 (2.8) | 0 (0) | |
| Reason for induction (if induced) | 0.12 | ||
| Maternal indications | 26 (41.9) | 24 (52.2) | |
| Fetal indications | 12 (19.4) | 14 (30.4) | |
| Premature rupture of membranes | 6 (9.7) | 2 (4.3) | |
| Elective | 18 (29.0) | 6 (13.0) | |
| Length of rupture | 0.19 | ||
| 0 ≤ 8 h | 108 (62.1) | 70 (72.9) | |
| 8–24 h | 54 (31.0) | 22 (22.9) | |
| > 24 h | 12 (6.9) | 4 (4.2) | |
| Dichorionic twins | 298 (96.1) | 146 (97.3) | 0.60 |
Data are presented as n (%)
CPD, cephalopelvic disproportion