TABLE 2.
Pregnancy, delivery, and neonatal outcome.
| Control (39 + 0 to 40 + 6 weeks) | sPTD <34 + 0 weeks | sPTD <32 + 0 weeks | sPTD <30 + 0 weeks | sPTD <28 + 0 weeks | |
|---|---|---|---|---|---|
| Variable | n = 205 | n = 61 | n = 27 | n = 17 | n = 8 |
| Redeemed prescription of vaginal progesterone after inclusion in the study | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) |
| Cerclage after inclusion | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) |
| Preeclampsia or gestational hypertension at delivery | 5 (2.4%) | 1 (1.7%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) |
| Chronic hypertension at delivery | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) |
| Diabetes type 1 or 2 or gestational diabetes at delivery | 0 (0.0%) | 2 (3.3%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) |
| Mode of delivery | |||||
| Cesarean delivery | 13 (6.3%) | 16 (26.2%) | 9 (33.3%) | 5 (29.4%) | 2 (25.0%) |
| Gestational age at delivery (days) | 280.6 (3.6) n = 205 | 219.6 (18.1) n = 61 | 203.5 (16.6) n = 27 | 191.5 (18.8) n = 17 | 175.6 (16.0) n = 8 |
| Birthweight (g) | 3538 (395) n = 205 | 1793 (506) n = 52 | 1426 (434) n = 24 | 1188 (325) n = 14 | 888 (188) n = 6 |
| Small for gestational age a | 2 (1.0%) | 3 (5.0%) | 1 (3.8%) | 0 (0.0%) | 0 (0.0%) |
| Apgar score at 5 min <7 | 2 (1.0%) | 42 (77.8%) | 14 (60.9%) | 7 (41.2%) | 4 (50%) |
| Perinatal mortality b | 0 (0.0%) | 1 (1.7%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) |
| Stillbirth after 22 + 0 weeks | 0 (0.0%) | 2 (3.3%) | 1 (3.8%) | 0 (0.0%) | 0 (0.0%) |
Note: For categorical variables, n (%) is presented, and for continuous variables, mean (SD) is presented. Adapted from: Marsál et al. 48
Abbreviation: sPTD, spontaneous preterm delivery.
a
Defined as ≥2 SDs below the Swedish gestational age‐ and sex‐specific growth standard. 48
b
Includes stillbirth after 22 + 0 weeks and death within 7 days after birth.