Table 3.

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.