Table 1.
Baseline characteristics of patients undergoing rescue cervical cerclage
| Predictor of outcome (singleton) | Cervical dilation Exposed fetal membranes n = 20 | Closed cervix uncomplicated term delivery n = 30 | P‐value |
|---|---|---|---|
| Age | 32 (29–34) | 33 (31–36) | 0.16 |
| Parity | |||
| Nulliparous | 10 (50%) | 21 (70%) | |
| Primiparous | 4 (20%) | 5 (17%) | |
| Multiparous | 6 (30%) | 4 (13%) | 0.3 |
| Ethnicity | |||
| Black | 9 (45%) | 6 (20%) | |
| Asian | 6 (30%) | 9 (30%) | |
| Caucasian | 5 (25%) | 15 (50%) | 0.11 |
| Risk factor | |||
| None | 9 (45%) | 30 (100%) | |
| Previous PTB | 7 (35%) | 0 | |
| Previous MTL | 4 (20%) | 0 | |
| Previous PTB + MTL | 4 | 0 | |
| LLETZ | 0 | 0 | |
| CS Full dilation | 0 | 0 | |
| Gest. at cerclage insertion | 19+4 (18+0–22+2) | N/A | |
| Gest. at microbiome sampling | 19+4 (18+0–22+2) | 20+4 (20+0–22+1) | 0.11 |
| Cervical dilation | 3 (1.25–3.0) | N/A | |
| ≥2 cm | 11 (55%) | ||
| >2 cm | 9 (45%) | ||
| Presence of symptoms | 7 (35%) | 0 | |
| Markers of infection | |||
| CRP (Median) | 13.3 (3.8–23.4) | N/A | |
| CRP (Mean) | 14.0 (6.9–21.1) | ||
| WCC (Median) | 10.0 (8.2–13.0) | ||
| WCC (Mean) | 10.9 (8.7–13.0) | ||
CRP, C‐reactive protein; Gest, gestational age; LLETZ, large loop excision of the transformation zone; MTL, mid‐trimester loss; PTB, preterm birth; WCC, white cell count.
Data presented as number (percentage) or mean 95% CI. P‐values: Mann–Whitney, Fishers Exact test.