3.3.5 Mean gestational weeks at delivery
Five studies were included for this analysis [12, 13, 15-17]. A fixed-effect model was used because of sufficient homogeneity across studies (P =0.17,I 2=37%). Results showed that the mean gestational weeks at delivery was similar between the cervical pessary group and the cervical cerclage group (MD =- 0.24, 95%CI : -0.87 to 0.39, P =0.45) (Figure 1-6).