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Demographic factors – non-elective subgroups
| USS indicated cervical cerclage | Rescue cervical cerclage | P value | |
|---|---|---|---|
| Pregnancies (n) | 25 | 9 | |
| Mean age (years) (range in brackets) | 27 (18–38) | 31 (21–39) | 0.9 |
| Percentage primiparous | 12 | 44 | <0.05 |
| Percentage multiparous | 88 | 56 | <0.05 |
| Multiple pregnancies (percentage of total in brackets) | 3 (12%) | 5 (56%) | <0.05 |
| Gestation of suture insertion (weeks) (range in brackets) | 22 (17–28) | 23 (20–24) | <0.05 |
