Table 4.
Pooled proportions of the different pregnancy outcomes in the overall population of pregnancies infected with coronavirus infection
| Outcome | Studies (n) | Pregnancies (n/N) (%)∗ | I2 (%) | Pooled proportions (95% CI)∗∗ |
|---|---|---|---|---|
| PTB <37 wks | 16 | 14/56 (25%) | 25.5 | 24.30 (12.5–38.6) |
| PTB <34 wks | 16 | 11/56 (19.6%) | 1.9 | 21.79 (12.5–32.9) |
| PE | 6 | 2/19 (10.5%) | 0 | 16.21 (4.2–34.1) |
| pPROM | 8 | 6/34 (17.6%) | 0 | 20.72 (9.5–34.9) |
| FGR | 10 | 2/29 (6.9%) | 0 | 11.66 (3.2–24.4) |
| Miscarriage | 2 | 8/12 (66.6%) | 0 | 64.74 (39.90-87.32) |
| Cesarean delivery | 17 | 50/58 (86.2%) | 4.0 | 83.91 (73.8–91.9) |
CI, confidence interval; FGR, fetal growth restriction; n/N, number of cases per total number of included pregnancies; PE, preeclampsia; pPROM, preterm prelabor rupture of membranes; PTB, preterm birth.
Di Mascio et al. Outcome of coronavirus spectrum infections during pregnancy. AJOG MFM 2020.
∗
Raw proportions
∗∗
A pooled proportion is calculated by using a random-effect model, and therefore it may not refect the actual raw proportion.