UK n (%) n = 39 | France n (%) n = 51 | Italy n (%) n = 34 | P | ||
---|---|---|---|---|---|
Age (years) (median, IQR)* | 35 [33–38] | 35 [32–40] | 35 [32–39] | ||
≥ 35 | 24 (62) | 24 (47) | 18 (53) | 0.39 | |
BMI (kg/m²) (median, IQR) | 26 [22–30] | 26 [22–30] | 25 [22–28] | ||
≥ 30 | 9 (24) | 14 (29) | 5 (15) | 0.34 | |
Missing | 1 | 2 | 0 | ||
Migrant or minoritized ethnic background† | 9 (23) | 19 (39) | 2 (6) | - | |
Missing | 0 | 4 | 3 | ||
Parity* | 0 | 1 (3) | 1 (2) | 2 (6) | |
1 | 9 (23) | 10 (20) | 9 (26) | 0.77 | |
≥ 2 | 29 (74) | 40 (78) | 23 (68) | ||
Prior PPH* | 5 (13) | 8 (16) | 1 (3) | 0.18 | |
Number of previous cesareans* | 0 | 2 (5) | 3 (6) | 2 (6) | |
1 | 15 (39) | 21 (41) | 12 (35) | ||
2 | 9 (23) | 12 (24) | 13 (38) | 0.77 | |
≥ 3 | 13 (33) | 15 (29) | 7 (21) | ||
Prior uterine surgery‡ (CD excluded)* | 6 (15) | 16 (32) | 17 (50) | < 0.01 | |
Prior uterine surgery‡ (CD included)* | 38 (97) | 49 (96) | 33 (97) | 0.93 | |
In Vitro Fertilization | 1 (3) | 1 (2) | 1 (3) | 0.54 | |
Multiple pregnancy* | 0 (0) | 0 (0) | 1 (3) | 0.26 | |
Gestational hypertensive disorders | 0 (0) | 1 (2) | 2 (6) | 0.52 | |
Preterm premature rupture of membranes | 1 (3) | 4 (8) | 0 (0) | 0.23 | |
Placenta location prior to delivery | Normal | 9 (23) | 4 (8) | 3 (10) | |
Low-lying | 2 (5) | 6 (13) | 0 (0) | 0.05 | |
Previa | 28 (72) | 38 (79) | 28 (90) | ||
Missing | 0 | 3 | 3 |