Comparison of the intervention with the control arm and estimation of the intervention effect on indicators of antenatal care and institutional delivery
| Outcomes | Intervention | Control | Intention to treat* | Per protocol* |
| n1/N1† (%) | n2/N2† (%) | RR (95% CI)‡ | RR (95% CI)‡ | |
| Received any antenatal care | 2361/2576 (91.7) | 2235/2536 (88.1) | 1.05 (1.02 to 1.07) | 1.04 (1.01 to 1.07) |
| Four or more total antenatal visits | 938/2360 (39.8) | 711/2233 (31.8) | 1.25 (1.08 to 1.43) | 1.25 (1.08 to 1.44) |
| Antenatal care initiated in the first trimester | 1216/2296 (52.9) | 1053/2191 (48.1) | 1.11 (1.02 to 1.19) | 1.11 (1.03 to 1.20) |
| Intermittent preventive treatment of pregnancy | 1397/2438 (57.3) | 1305/2419 (53.9) | 1.06 (0.97 to 1.15) | 1.07 (0.97 to 1.15) |
| Institutional delivery | 1506/2542 (59.2) | 1421/2494 (56.9) | 1.06 (0.91 to 1.20) | 1.06 (0.91 to 1.20) |
*Includes trial years 2 and 3.
†Counts with the outcome (n) out of the total participants (N) in the arm.
‡Each outcome was analysed separately and each model included a fixed effect for year of intervention, residential distance to the nearest primary health centre, baseline population of the cluster and a random intercept for cluster. The CI accounted for clustering of observations.
RR, risk ratio.