Comparison of the intervention period with the baseline and estimation of the effect of intervention period on indicators of antenatal care and institutional delivery
| Outcomes | Trial years 2 and 3 vs baseline | ||
| Trial years 2 and 3, n1/N1* (%) | Baseline, n2/N2* (%) | RR (95% CI)† | |
| Received any antenatal care | 4596/5112 (89.9) | 4674/8887 (52.6) | 1.83 (1.78 to 1.86) |
| Four or more total antenatal visits | 1649/4593 (35.9) | 533/3420 (15.6) | 2.59 (2.28 to 2.91) |
| Antenatal care initiated in the first trimester | 2269/4487 (50.6) | 1468/3383 (43.4) | 1.15 (1.06 to 1.25) |
| Intermittent preventive treatment of pregnancy | 2702/4857 (55.6) | 1444/7437 (19.4) | 3.42 (2.98 to 3.84) |
| Institutional delivery | 2927/5036 (58.1) | 2901/6668 (43.5) | 1.54 (1.41 to 1.66) |
*Counts and proportions with the outcome, out of the total participants in the two comparison groups.
†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 CIs accounted for clustering of observations.
RR, risk ratio.