Absolute long-term effects with corresponding 95% CI: the effects of two cost-reduction interventions on facility-based deliveries in two districts in Burkina Faso with different non-equivalent dependent variables as control outcomes
| Effects of the policy | ANC1 | ANC2 | ANC3 | ANC4 |
| Kaya Health District (Free Delivery Intervention) | ||||
| Immediate | −10.60 (−15.95 to −5.25) | −5.36 (−8.83 to −1.88) | −3.09 (−7.07 to 0.89) | |
| 6 months | 3.76 (0.33 to 7.19) | 2.04 (−1.16 to 5.24) | 1.60 (−1.27 to 4.48) | |
| 12 months | 6.16 (2.66 to 9.66) | 3.28 (−0.15 to 6.71) | 2.39 (−0.65 to 5.43) | |
| 18–30 months | 6.13 (2.64 to 9.61) | 3.16 (− 0.20 to 6.53) | 2.25 (−0.78 to 5.29) | |
| 36 months | 9.94 (6.63 to 13.24) | 6.73 (3.33 to 10.13) | 5.65 (2.61 to 8.69) | |
| 42 months | 14.47 (10.47 to 18.47) | 10.88 (6.78 to 14.98) | 9.57 (5.97 to 13.18) | |
| Zorgho Health District (National Subsidy) | ||||
| Immediate | 0 | 0 | 0 | 0 |
| 6 months | 3.11 (1.87 to 4.36) | 1.88 (0.66 to 3.10) | 1.23 (0.08 to 2.38) | 2.74 (1.59 to 3.89) |
| 12 months | 6.22 (3.74 to 8.71) | 3.76 (1.33 to 6.20) | 2.46 (0.17 to 4.76) | 5.48 (3.18 to 7.79) |
| 18 months | 6.26 (4.30 to 8.21) | 3.59 (1.67 to 5.51) | 1.36 (−0.46 to 3.18) | 3.49 (1.66 to 5.32) |
| 24 months | 6.28 (4.14 to 8.44) | 3.41 (1.31 to 5.52) | 0.26 (−1.72 to 2.24) | 1.50 (−0.52 to 3.52) |
| 30 months | 8.53 (6.59 to 10.48) | 5.34 (3.42 to 7.25) | 1.45 (−0.38 to 3.27) | 2.30 (0.45 to 4.15) |
| 36 to 84 months | 10.78 (8.52 to 13.03) | 7.26 (5.04 to 9.48) | 2.64 (0.51 to 4.77) | 3.10 (0.94 to 5.26) |
ANC, antenatal care.