Table 3.

The summary of sensitivity analyses

Number	Measured outcome	Meta-analyses of all studies (Overall effect statistical significance)	Sensitivity Analysesa (Overall effect statistical significance)
1	Second stage of labor	P = 0.44	P = 0.64
2	Third stage of labor	P = 0.82	P = 0.39
3	Active phase of labor	P = 0.01b	P = 0.01b
4	Bishop score	P < 0.00001b	P < 0.00001b
5	Frequency of cesarean section	P = 0.23	P = 0.59

^aquasi-randomized study (Kordi 2013, 2014, 2017) [33–35] removed from meta-analysis

^bthe significant values are shown with bold font