Table 3.
Association between elastographic parameters and spontaneous preterm delivery at < 32 weeks of gestation.
| Variable | PP0 (Pretreatment) | PP1 (Post-Treatment) | ||||||
|---|---|---|---|---|---|---|---|---|
| Unadjusted OR (95% CI) |
p-Value | Adjusted OR (95% CI) * |
p-Value | Unadjusted OR (95% CI) |
p-Value | Adjusted OR (95% CI) * |
p-Value | |
| IOS (×0.1) | 3.60 (1.56–9.28) | 0.004 | 2.92 (1.07–8.77) | 0.040 | 3.94 (1.55–12.46) | 0.007 | 4.39 (1.52–17.29) | 0.012 |
| EOS (×0.1) | 1.89 (0.94–3.87) | 0.071 | 2.13 (0.94–5.03) | 0.070 | 2.88 (1.16–7.97) | 0.027 | 3.65 (1.28–13.74) | 0.026 |
| ECI (×0.1) | 1.06 (1.00–1.12) | 0.045 | 1.06 (0.99–1.13) | 0.089 | 1.11 (1.01–1.23) | 0.032 | 1.11 (1.00–1.25) | 0.054 |
| HR | 0.95 (0.91–0.99) | 0.027 | 0.96 (0.91–1.01) | 0.122 | 0.93 (0.88–0.98) | 0.012 | 0.92 (0.86–0.98) | 0.016 |
PP0, baseline; PP1, 1 week postprogesterone; OR, odds ratio; CI, confidence interval; IOS, mean of internal os strain; EOS, mean of external os strain; ECI, elasticity contrast index; HR, hardness ratio. * Adjusted for cervical length at diagnosis.