Table 5 Correlations between second-trimester parameters and preterm delivery
Preterm delivery (n = 32) | Term delivery (n = 307) | P value | |
|---|---|---|---|
Anterior cervical lip strain rate (%) | 0.15 ± 0.07 | 0.14 ± 0.04 | 0.024* |
Posterior cervical lip strain rate (%) | 0.09 ± 0.04 | 0.09 ± 0.04 | 0.891 |
Cervical length (mm) | 37.1 ± 6.9 | 38.2 ± 4.2 | < 0.001* |
Endocervical canal width (mm) | 5.7 ± 0.8 | 5.6 ± 0.7 | 0.922 |