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Table 3 The comparison duration of labor** in control and intervention groups based on Kaplan Meier survival analysis

From: The effectiveness of a Pilates exercise program during pregnancy on childbirth outcomes: a randomised controlled clinical trial

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
  1. *Log-Rank Test; **the sum of the duration of the active phase and the second stage of labor