Additional file 5 of Oxytocin use in trial of labor after cesarean and its relationship with risk of uterine rupture in women with one previous cesarean section: a meta-analysis of observational studies

Additional file 5: Fig. S5. Funnel plots and Egger’s test were used to reveal possible publication bias. The results showed a possible overestimation of effect size in the usage rate of oxytocin in spontaneous delivery (p = 0.048), the rate of uterine rupture in both spontaneous delivery (p = 0.031) and induction of labor.