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

Table 3 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^*
Group	Mean	Std. Error	Lower Bound	Upper Bound	Chi-square	P-value^*
control	247.54	20.29	207.77	287.32	8.41	.004
intervention	170.42	15.20	140.63	200.22	8.41	.004

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

ISSN: 1471-2393