Table 3.
Univariate analysis for the prediction of delivery before 34 weeks of gestation following TAC.
| Independent variable | Univariate | ||
|---|---|---|---|
| OR | 95% CI | P value | |
| Maternal age (years) | 0.210 | 0.027–1.645 | 0.137 |
| BMI (kg/m2) | 0.858 | 0.264–2.794 | 0.799 |
| Multiparity | 1.806 | 0.587–5.556 | 0.302 |
| Assisted conception | 1.891 | 0.613–5.833 | 0.267 |
| Previous live birth history | 1.200 | 0.400–3.602 | 0.745 |
| Prior TVC history | 2.478 | 0.770–7.977 | 0.128 |
| Past preterm delivery | 3.444 | 0.755–15.700 | 0.110 |
| Induced abortion history | 0.557 | 0.152–2.043 | 0.377 |
| Previous cervical surgery | 0.482 | 0.105–2.220 | 0.348 |
| Adenomyosis | 5.583 | 1.640–19.012 | 0.005* |
| Uterine anomaly | <0.001 | <0.001–>999.999 | 0.986 |
| Preoperative CL | 4.196 | 0.974–18.065 | 0.054 |
| Postoperative CL | 1.015 | 0.928–1.111 | 0.745 |
| CLat 20–24 weeks gestation | 9.929 | 1.547–63.745 | 0.015* |
OR: odds ratio; CI: confidence interval; BMI: body mass index; TVC: transvaginal cerclage; CL: cervical length.
*Statistically significant.