Table 1 Demographic and obstetric characteristics from phase 2 entry details in group A and group B clusters
From: Perineal Assessment and Repair Longitudinal Study (PEARLS): a matched-pair cluster randomized trial
Group A clusters, n =532 | Group B clusters n = 922 | |
|---|---|---|
Maternal age in years, mean ± SD | 28.9 ± 5.8 | 29.1 ± 5.7 |
Multiparity, % (n) | 37.0% (194) | 35.8% (330) |
White ethnic background, % (n) | 89.3% (475) | 87.2% (804) |
Type of delivery, % (n) | ||
Spontaneous vaginal | 75.8% (403) | 74.4% (690) |
Forceps | 13.9% (74) | 12.9% (120) |
Ventouse/suction cup | 9.8% (52) | 12.0% (111) |
Breech | 0.6% (3) | 0.6% (6) |
Other | 0% (0) | 0% (0) |
Perineal trauma at delivery % (n) | ||
None | 0.8% (4) | 0.9% (8) |
First-degree | 1.5% (8) | 2.0% (18) |
Second-degree | 58.9% (307) | 61.6% (553) |
Third-degree | 3.8% (20) | 3.0% (27) |
Fourth-degree | 0% (0) | 0% (0) |
Episiotomy | 33.6% (175) | 31.5% (283) |
Extended episiotomy | 1.5% (8) | 1.1% (10) |
Pregnancies at < 37 weeks gestation, % (n) | 3.4% (18) | 3.1% (29) |
Birth weight, g, mean ± SD | 3461 ± 485) | 3460 ± 494) |