Table 4 Cervical ripening effects with different initial Bishop scores
Variable | Initial Bishop scores ≤ 3 | Initial Bishop scores 4–6 | ||||
|---|---|---|---|---|---|---|
Control group (n = 66) | Study group (n = 64) | p value | Control group (n = 27) | Study group (n = 30) | p value | |
The improved Bishop scores at 12 h (‾X ± s) | ||||||
Total scores | 2.56 ± 0.70 | 3.11 ± 0.99 | 0.000* | 2.41 ± 0.89 | 2.93 ± 1.08 | 0.051 |
Dilation | 1.11 ± 0.31 | 1.53 ± 0.50 | 0.000* | 1.33 ± 0.48 | 1.83 ± 0.46 | 0.000* |
Cervical consistency | 0.95 ± 0.27 | 1.02 ± 0.13 | 0.106 | 0.78 ± 0.42 | 0.80 ± 0.41 | 0.841 |
Effacement | 0.61 ± 0.49 | 0.61 ± 0.49 | 0.969 | 0.59 ± 0.50 | 0.73 ± 0.45 | 0.271 |
Position of cervix | 0.20 ± 0.40 | 0.20 ± 0.41 | 0.931 | 0.11 ± 0.32 | 0.20 ± 0.41 | 0.367 |
Station | -0.30 ± 0.46 | -0.25 ± 0.44 | 0.503 | -0.41 ± 0.57 | -0.63 ± 0.72 | 0.198 |
The improved Bishop scores when CCRB was discharged (‾X ± s) | ||||||
Total scores | 2.56 ± 0.70 | 4.56 ± 0.87 | 0.000* | 2.41 ± 0.89 | 3.93 ± 0.74 | 0.000* |
Dilation | 1.11 ± 0.31 | 2.03 ± 0.25 | 0.000* | 1.33 ± 0.48 | 2.03 ± 0.18 | 0.000* |
Cervical consistency | 0.95 ± 0.27 | 1.09 ± 0.29 | 0.006* | 0.78 ± 0.42 | 0.80 ± 0.41 | 0.841 |
Effacement | 0.61 ± 0.49 | 1.33 ± 0.69 | 0.000* | 0.59 ± 0.50 | 1.23 ± 0.57 | 0.000* |
Position of cervix | 0.20 ± 0.40 | 0.28 ± 0.45 | 0.264 | 0.11 ± 0.32 | 0.23 ± 0.43 | 0.226 |
Station | -0.30 ± 0.46 | -0.17 ± 0.42 | 0.093 | -0.41 ± 0.57 | -0.37 ± 0.56 | 0.786 |
First stage of labor (h, ‾X ± s) | 7.72 ± 2.77 | 6.42 ± 2.86 | 0.009* | 6.16 ± 2.95 | 5.64 ± 2.82 | 0.502 |
Total stage of labor (h, ‾X ± s) | 8.52 ± 3.09 | 7.36 ± 3.20 | 0.036* | 7.02 ± 2.93 | 6.47 ± 3.11 | 0.494 |