Table 4.
Uterocervical angle among the study participants:
| Uterocervical angle ( °) | Total (n = 70) | Incidence of preterm birth | Test of significance | P | |
|---|---|---|---|---|---|
| Yes (n = 22) | No (n = 48) | ||||
| 1st visit | |||||
| Mean ± SD | 81.51 ± 17.10 | 93.32 ± 19.09 | 76.10 ± 13.09 | t = 3.839 |
0.001* (S) |
| 2nd visit | |||||
| Mean ± SD | 92.48 ± 18.71 | 110.1 ± 18.48 | 84.42 ± 12.24 | t = 5.943 |
< 0.001* (S) |
| 3rd visit | (n = 52) | (n = 4) | (n = 48) | ||
| Mean ± SD | 96.39 ± 14.75 | 123.3 ± 23.16 | 94.15 ± 11.63 | t = 2.489 | 0.085 (NS) |
SD Standard deviation, t Student t-test, p p value, *: statistically significant at p ≤ 0.05
1st visit: 16 0/7 weeks – 24 0/7 weeks
2nd visit: 24 1/7 weeks – 32 0/7 weeks
3rd visit: 32 1/7 weeks – 36 6/7 weeks