Table 3 Unnecessary caesarean delivery by group allocation and period (see Table 1 for the definition of the 15 indications of unnecessary caesareans)
Factor | Intervention group | Control group | Crude difference in rate change (95% CI) | Intervention effecta | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
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 | ||
Unnecessary caesarean | 18.96 (201/1060) | 6.56 (68/1036) | − 12.40 | 18.27 (197/1078) | 23.30 (233/1000) | 5.03 | − 12.80 (− 16.61 to − 9.08) | − 17.02 (− 19.20 to − 13.20) | 0.22 (0.14 to 0.34) | 0.000 |
Foetal distress | 28.1 (96/342) | 5.1 (11/215) | − 22.96 | 30.5 (100/328) | 46.9 (108/230) | 16.4 | − 39.4 (− 45.6 to − 7.7) | − 39.6 (− 44.4 to − 30.0) | 0.09 (0.03 to 0.23) | 0.000 |
Labour dystocia | 21.8 (55/252) | 11.6 (49/420) | − 10.16 | 20.3 (52/256) | 32.0 (113/353) | 11.7 | − 21.8 (− 22.4 to − 4.·7) | − 17·2 (− 23.4 to − 8.0) | 0.37 (0.20 to 0.67) | 0.001 |
Previous caesarean | 18.0 (40/222) | 5.4 (08/147) | − 12.57 | 18.5 (29/156) | 7.1 (12/155) | − 11.4 | − 1.2 (− 3.4 to 0.40) | − 3.9 (− 6.9 to 6.9) | 0.47 (0.10 to 2.05) | 0.316 |
Pre-eclampsia | 14.1 (10/71) | 0 (0/31) | − 14.07 | 25.8 (16/62) | 0 (0/50) | − 25.8 | – | – | – | – |