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 visitsPneumonia diagnosisInstitutional deliveriesDTP first dose
IRR/EstP value95% CIIRR/EstP value95% CIIRR/EstP value95% CIIRR/EstP value95% CI
Effect of FCP
Immediate difference between facilities in intervention areas vs control (level)
 EVD and FCP2.7<0.0012.2 to 3.22.1<0.0011.5 to 2.91.30.0041.1 to 1.51.30.090.96 to 1.8
 FCP only2.7<0.0012.2 to 3.14.1<0.0012.9 to 5.91.20.011.0 to 1.41.20.060.99 to 1.5
Gradual difference between facilities in intervention areas vs control (slope)
 EVD and FCP0.910.0030.86 to 0.971.00.940.90 to 1.11.00.830.96 to 1.10.990.800.90 to 1.1
 FCP only0.90<0.0010.85 to 0.950.79<0.0010.71 to 0.870.990.750.94 to 1.10.990.780.93 to 1.1
Post-FCP
Immediate difference between facilities in intervention areas vs control (level)
 EVD and FCP0.790.020.65 to 0.960.580.0010.42 to 0.810.870.100.73 to 1.01.20.380.84 to 1.6
 FCP only0.820.050.68 to 1.00.770.160.54 to 1.10.900.210.76 to 1.11.00.770.83 to 1.3
Gradual difference between facilities in intervention areas vs control (slope)
 EVD and FCP1.00.260.97 to 1.11.00.750.89 to 1.21.01.00.93 to 1.10.970.710.85 to 1.1
 FCP only1.10.120.98 to 1.21.3<0.0011.1 to 1.51.00.530.95 to 1.11.00.840.92 to 1.1
Effect of FCP: absolute change compared to pre-EVD
 EVD and FCP65.346.7 to 91.35.83.4 to 10.10.690.53 to 0.890.410.29 to 0.57
 FCP only48.435.5 to 65.96.63.8 to 11.30.500.37 to 0.680.240.19 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.