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Table 4 Selected characteristics of the caesarean births performed during the study birth period by group allocation and period

From: DECIDE: a cluster-randomized controlled trial to reduce unnecessary caesarean deliveries in Burkina Faso

Factor Intervention group Control group Crude difference in rate change (95% CI) Intervention effect   
Baseline (n = 1060) Post-intervention (n = 1036) Diff. Baseline (n = 1078) Post-intervention (n = 1000) Diff.   Adjusted absolute risk difference (95% CI) Adjusted odds ratio (95% CI) P value
Contribution of each group to the overall caesarean section ratea (n, %)
 Group 1 25.47 (270/1060) 25.09 (260/1036) − 0.38 23.46 (253/1078) 23.90 (239/1000) 0.44 − 4.44 (− 9.60 to 0.75) − 3.50 (− 5.70 to − 0.60) 0.66 (0.47 to 0.94) 0.024
 Group 2 3.96 (42/1060) 3.47 (36/1036) − 0.49 4.91 (53/1078) 2.30 (23/1000) − 2.61 1.52 (− 0.73 to 3.77) 1.00 (− 0.40 to 3.40) 1.45 (0.82 to 2.56) 0.189
 Group 3 24.24 (257/1060) 23.74 (246/1036) − 0.50 24.11 (260/1078) 29.00 (290/1000) 4.89 − 6.56 (− 11.81 to − 1.31) − 6.80 (− 11.5 to − 1.00) 0.70 (0.52 to 0.95) 0.022
 Group 4 4.24 (45/1060) 3.47 (36/1036) − 0.70 6.02 (65/1078) 4.40 (44/1000) − 1.62 0.05 (− 2.45 to 2.56) −0.10 (− 1.90 to 3.10) 0.98 (0.55 to 1.76) 0.969
 Group 5 18.67 (198/1060) 18.24 (189/1036) − 0.43 17.53 (189/1078) 16.40 (164/1000) − 1.13 − 1.91 (− 6.53 to 2.70) − 6.00 (− 6.00 to 6.90) 0.96 (0.59 to 1.55) 0.888
 Group 6 1.79 (19/1060) 2.99 (31/1036) 1.20 2.41 (26/1078) 2.20 (22/1000) − 0.21 0.96 (− 0.85 to 2.78) 1.20 (− 0.60 to 4.70) 1.57 (0.74 to 3.31) 0.236
 Group 7 2.64 (28/1060) 4.72 (49/1036) 2.08 2.87 (31/1078) 2.90 (29/1000) 0.03 1.34 (− 0.80 to 3.49) 1.6 (− 0.30 to 4.90) 1.59 (0.89 to 2.85) 0.116
 Group 8 6.13 (65/1060) 3.66 (38/1036) − 2.47 5.93 (64/1078) 4.60 (46/1000) − 1.33 − 2.06 (− 4.70 to 0.57) − 1.70 (− 2.70 to 0.00) 0.63 (0.40 to 1.00) 0.051
 Group 9 4.15 (44/1060) 5.88 (61/1036) 1.73 2.87 (31/1078) 4.50 (45/1000) 1.63 − 0.66 (− 3.13 to 1.80) − 1.60 (− 2.80 to 1.30) 0.63 (0.36 to 1.30) 0.256
 Group 10 8.67 (92/1060) 8.68 (90/1036) 0.01 9.83 (106/1078) 9.80 (98/1000) − 0.03 − 1.35 (− 4.85 to 2.14) − 1.00 (− 4.10 to 3.40) 0.89 (0.56 to 1.40) 0.619
 Caesarean performed before labour (vs during labour) 17.07 (181/1060) 15.34 (159/1036) − 1.73 16.04 (173/1078) 16.60 (166/1000) 0.56 − 1.16 (− 13.02 to 10.70) − 1.14 (− 10.60 to 16.80) 0.90 (0.32 to 2.52) 0.846
Caesarean by indication (n, %)
 Foetal distress 32.26 (342/1060) 20.75 (275/1036) − 11.41 30.42 (328/1078) 23.00 (230/1000) − 7.42 − 0.41 (− 5.69 to 4.87) −2.40 (−8.50 to 5.30) 0.87 (0.57 to 1.32) 0.518
 Labour dystocia 23.77 (252/1060) 40.54 (420/1036) 16.77 23.74 (256/1078) 35.30 (353/1000) 11.56 4.59 (− 1.34 to 10.53) 4.10 (−4.90 to 13.80) 1.19 (0.80 to 1.77) 0.379
 Previous caesarean 17.64 (187/1060) 14.18 (147/1036) − 3.46 17.71 (191/1078) 15.50 (155/1000) − 2.21 − 7.36 (− 11.79 to − 2.93) −5.00 (− 100.10 to 3.90) 0.64 (0.31 to 1.31) 0.227
 Pre-eclampsia/eclampsia 6.69 (71/1060) 2.99 (31/1036) − 3.70 5.75 (62/1078) 5.00 (50/1000) − 0.75 − 1.35 (− 3.96 to 1.25) −1.80 (− 3.20 to 0.80) 0.63 (0.34 to 1.16) 0.143
 Other indication 5.37 (57/1060) 8.30 (86/1036) 2.93 6.21 (67/1078) 8.10 (81/1000) 1.89 1.60 (− 3.40 to 6.62) 0.70 (− 2.00 to 4.50) 1.10 (0.74 to 1.63) 0.617
Case fatality (n, %)
 Maternal death 0.75 (8/1060) 0.19 (2/1036) − 0.56 0.92 (10/1078) 0.40 (4/1000) − 0.52 − 0.02 (− 0.91 to 0.87) − 0.30 (− 0.40 to 0.50) 0.32 (0.04 to 2.23) 0.253
 Intrapartum-related neonatal death 4.95 (53/1069) 6.32 (64/1012) 1.37 5.80 (63/1085) 4.29 (43/1002) − 1.51 2.78 (− 0.18 to 5.76) 2.90 (− 0.70 to 9.80) 1.73 (0.82 to 3.66) 0.149
  1. Data are the numbers of caesareans per 100 patients (percentages of unnecessary caesarean section) by group allocation and period
  2. aThe Robson ten-group classification system [3]