Characteristic | ECV at or near Term n = 3382 | No ECV but Eligible n = 21,729 | No ECV and Ineligible n = 7210 | Difference between ECV and Eligible groups |
---|---|---|---|---|
n(col%) | n(col%) | n(col%) | Test statistic, p-value | |
Gestational age at ECV | - | |||
36 weeks | 1055 (31.2) | - | - | |
37 weeks | 1239 (36.6) | |||
38 weeks | 646 (19.1) | |||
39 weeks | 266 (7.9) | |||
≥ 40 weeks | 176 (5.2) | |||
Maternal age (mean, SD) | 31.6 (5.1) | 30.5 (5.4) | 32.5 (5.2) | t(4637.8) = 11.56, p < 0.01 |
≤ 20 years | 50 (1.5) | 652 (3.0) | 71 (1.0) | X2 (3)=88.60, p < 0.01 |
20–35 years | 2312 (68.4) | 15,976 (73.5) | 4468 (62.0) | |
≥ 35 years | 1019 (30.1) | 5096 (23.5) | 2670 (37.0) | |
Parity | X2 (1)=235.12, p < 0.01 | |||
Nulliparous | 1819 (53.8) | 14,600 (67.3) | 1219 (16.9) | |
Multiparous | 1562 (46.2) | 7100 (32.7) | 5990 (83.1) | |
Country of birth | X2 (1)=128.15, p < 0.01 | |||
Australia | 2052 (60.7) | 15,286 (70.4) | 5067 (70.3) | |
Elsewhere | 1330 (39.3) | 6443 (29.7) | 2143 (29.7) | |
Smoking during pregnancy | 278 (8.2) | 2497 (11.5) | 882 (12.2) | X2 (1)=31.87, p < 0.01 |
Morbid obesity | 14 (0.4) | 189 (0.9) | 135 (1.9) | X2 (1)=7.58, p < 0.01 |
Hypertensive disorder | 198 (5.9) | 2075 (9.6) | 1019 (14.1) | X2 (1)=48.53, p < 0.01 |
Diabetes | 257 (7.6) | 1627 (7.5) | 834 (11.6) | X2 (2)=0.05, p = 0.82 |
Patient type at delivery | X2 (2)=239.15, p < 0.01 | |||
Private | 623 (18.4) | 6543 (30.1) | 2174 (30.2) | |
Private patient in public hospital | 132 (3.9) | 1246 (5.7) | 475 (6.6) | |
Public | 2627 (77.7) | 13,940 (64.2) | 4561 (63.3) | |
Delivery hospital | X2 (2)=725.25, p < 0.01 | |||
Tertiary hospital in Urban area | 1550 (45.8) | 5520 (25.4) | 2033 (28.2) | |
Non-tertiary hospital in Urban area | 1524 (45.1) | 11,216 (51.6) | 3584 (49.7) | |
Non-tertiary hospital in Regional area | 308 (9.1) | 4993 (23.0) | 1593 (22.1) |