Table 1.

Parameter estimates for effect of FCP on rates of overall clinic visits, visits for pneumonia, institutional deliveries and first dose of diphtheria-tetanus-pertussis vaccinations in the Equateur province, DRC, from January 2017 to January 2019

	Overall clinic visits			Pneumonia diagnosis			Institutional deliveries			DTP first dose
	IRR/Est	P value	95% CI	IRR/Est	P value	95% CI	IRR/Est	P value	95% CI	IRR/Est	P value	95% CI
Effect of FCP
Immediate difference between facilities in intervention areas vs control (level)
EVD and FCP	2.7	<0.001	2.2 to 3.2	2.1	<0.001	1.5 to 2.9	1.3	0.004	1.1 to 1.5	1.3	0.09	0.96 to 1.8
FCP only	2.7	<0.001	2.2 to 3.1	4.1	<0.001	2.9 to 5.9	1.2	0.01	1.0 to 1.4	1.2	0.06	0.99 to 1.5
Gradual difference between facilities in intervention areas vs control (slope)
EVD and FCP	0.91	0.003	0.86 to 0.97	1.0	0.94	0.90 to 1.1	1.0	0.83	0.96 to 1.1	0.99	0.80	0.90 to 1.1
FCP only	0.90	<0.001	0.85 to 0.95	0.79	<0.001	0.71 to 0.87	0.99	0.75	0.94 to 1.1	0.99	0.78	0.93 to 1.1
Post-FCP
Immediate difference between facilities in intervention areas vs control (level)
EVD and FCP	0.79	0.02	0.65 to 0.96	0.58	0.001	0.42 to 0.81	0.87	0.10	0.73 to 1.0	1.2	0.38	0.84 to 1.6
FCP only	0.82	0.05	0.68 to 1.0	0.77	0.16	0.54 to 1.1	0.90	0.21	0.76 to 1.1	1.0	0.77	0.83 to 1.3
Gradual difference between facilities in intervention areas vs control (slope)
EVD and FCP	1.0	0.26	0.97 to 1.1	1.0	0.75	0.89 to 1.2	1.0	1.0	0.93 to 1.1	0.97	0.71	0.85 to 1.1
FCP only	1.1	0.12	0.98 to 1.2	1.3	<0.001	1.1 to 1.5	1.0	0.53	0.95 to 1.1	1.0	0.84	0.92 to 1.1
Effect of FCP: absolute change compared to pre-EVD
EVD and FCP	65.3		46.7 to 91.3	5.8		3.4 to 10.1	0.69		0.53 to 0.89	0.41		0.29 to 0.57
FCP only	48.4		35.5 to 65.9	6.6		3.8 to 11.3	0.50		0.37 to 0.68	0.24		0.19 to 0.30

DRC, The Democratic Republic of Congo; DTP, diphtheria-pertussis-tetanus vaccine; Est, estimate of absolute change per 1000 catchment population; EVD, Ebola virus disease; FCP, free care policy; IRR, incidence rate ratio.