Table 3. ECV in babies delivering at term.
| Pre-universal 36-week scan | Post-universal 36-week scan | RR (95% CI) | p-value | |
|---|---|---|---|---|
| N (total) | 14,444 | 13,381 | ||
| Attendances at ECV clinic, n (%) | 952 (6.6) | 650 (4.9) | 0.74 (0.67, 0.81) | <0.001 |
| Breech presentation at clinic visit, n (% of attendances) | 356 (37.4) | 436 (67.1) | 1.79 (1.63, 1.98) | <0.001 |
| Breech presentation at clinic, n (% of term deliveries) | 356 (2.5) | 436 (3.3) | 1.32 (1.15, 1.51) | <0.001 |
| ECV attempted if breech at clinic visit, n (%) | 299 (84.0) | 364 (83.5) | 0.99 (0.93, 1.06) | 0.85 |
| Successful, n (%of attempts) | 148 (49.5) | 165 (45.3) | 0.92 (0.78, 1.08) | 0.28 |
| Successful, n (% of term deliveries) | 148 (1.0) | 165 (1.2) | 1.20 (0.96, 1.51) | 0.10 |
| Unsuccessful, n (%) | 151 (50.5) | 199 (55.7) | 1.08 (0.94, 1.25) | 0.29 |
| ECV not attempted, n (%) | 57 (16.0) | 72 (16.5) | 1.03 (0.75, 1.42) | 0.85 |
| Contraindicated, n (%) | 16 (28.1) | 14 (19.4) | 0.69 (0. 37, 1.30) | 0.25 |
| Declined, n (%) | 41 (71.9) | 58 (80.6) | 1.12 (0.92, 1.37) | 0.26 |
| ECV not attempted OR unsuccessful, n (%) | 208 (58.4) | 271 (62.2) | 1.06 (0.95, 1.19) | 0.29 |
CI, confidence interval; ECV, external cephalic version; RR, relative risk.