Table 2 Prolongation of pregnancy required to introduce new treatment into practice
| Â | Treatment used in clinical practice | ||
|---|---|---|---|
Prolongation of pregnancy required to change practice | Progesterone PV in multiples (n = 544) | Progesterone IM in singletons (n = 544) | Cerclage (n = 544) |
1 week | 165 (31.5%) | 138 (26.5%) | 62 (11.9%) |
2 weeks | 207 (39.6%) | 216 (41.5%) | 131 (25.2%) |
3 weeks | 151 (28.9%) | 167 (32.1%) | 326 (62.8%) |
Missing | 21 | 23 | 25 |