Characteristic | Maternity unit or country (number of recruited women) | Intervention sites | Control sites | Odds ratio [95% CI] or Mean Difference [95% CI] |
---|---|---|---|---|
Number recruited | Trial as a whole | 1195 | 807 | |
Germany | 466 | 289 | ||
Ireland | 368 | 254 | ||
Italy | 361 | 264 | ||
Any prior vaginal birth (before previous CS) | Trial as a whole | 104 (8.7%) | 54 (6.7%) | 1.30 [0.92, 1.83] |
Germany | 28 (6.0%) | 16 (5.5%) | 0.91 [0.48, 1.74] | |
Ireland | 58 (15.8%) | 30 (11.8%) | 1.37 [0.86, 2.18] | |
Italy | 18 (5.0%) | 8 (3.0%) | 1.94 [0.83, 4.56] | |
Any prior VBAC | Trial as a whole | 75 (6.3%) | 32 (4.0%) | 1.52 [0.99, 2.33] |
Germany | 26 (5.6%) | 18 (6.2%) | 0.91 [0.48, 1.71] | |
Ireland | 32 (8.7%) | 13 (5.1%) | 1.56 [0.80, 3.06] | |
Italy | 17 (4.7%) | 1 (0.4%) | 8.94 [1.62, 49.27] | |
Gestational age at recruitment (mean, weeks)a | Trial as a whole | 26.3 (9.4) | 24.8 (10.5) | 1.15 [0.42, 1.88] |
Germany | 32.7 (5.6) | 28.3 (11.4) | 4.40 [2.99, 5.81] | |
Ireland | 19.6 (7.3) | 19.1 (5.3) | 0.50 [−0.49, 1.49] | |
Italy | 24.8 (9.8) | 26.4 (11.1) | −1.60 [−3.28, 0.08] | |
BMI at recruitment (mean)b | Trial as a whole | 25.8 (5.1) | 27.0 (5.5) | −1.26 [− 1.73, −0.79] |
Germany | 25.6 (5.5) | 26.2 (5.3) | −0.60 [−1.39, 0.19] | |
Ireland | 26.6 (4.9) | 27.2 (5.8) | −0.60 [−1.47, 0.27] | |
Italy | 25.2 (4.8) | 27.7 (5.2) | −2.50 [−3.30, −1.70] | |
Age at recruitment (mean, years)c | Trial as a whole | 34.0 (4.5) | 34.2 (4.7) | −0.27 [− 0.67, 0.14] |
Germany | 34.1 (4.3) | 33.8 (4.7) | 0.30 [−0.37, 0.97] | |
Ireland | 33.0 (4.2) | 33.5 (4.4) | −0.50 [−1.19, 0.19] | |
Italy | 34.8 (4.8) | 35.5 (4.6) | −0.70 [−1.44, 0.04] |