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The comparison duration of labor** in control and intervention groups based on Kaplan Meier survival analysis
| Group | Mean | Std. Error | 95% Confidence Interval | Chi-square | P-value* | |
|---|---|---|---|---|---|---|
| Lower Bound | Upper Bound | |||||
| control | 247.54 | 20.29 | 207.77 | 287.32 | 8.41 | .004 |
| intervention | 170.42 | 15.20 | 140.63 | 200.22 | ||
*Log-Rank Test; **the sum of the duration of the active phase and the second stage of labor
