Table 4. Rate ratios (RRs) with corresponding 95% Confidence intervals (CIs) for associations between subsidy introduction and birth attendance in a health facility over time across urban and rural locations in Burkina Faso.
| Time since subsidy introduction (months) | Primary analysis (Subsidy introduction: 1 January 2007) | Sensitivity analysis 1 (Subsidy introduction: 1 April 2007) | Sensitivity analysis 2 (Births between 1 January and 31 March 2007 deleted) | |||
|---|---|---|---|---|---|---|
| Urban | Rural | Urban | Rural | Urban | Rural | |
| 0 | 1.04 (0.98–1.10) | 1.12 (1.04–1.20) | 1.04 (1.00–1.08) | 1.08 (1.02–1.14) | 1.05 (1.00–1.10) | 1.15 (1.06–1.24) |
| 6 | 1.05 (0.97–1.14) | 1.14 (1.01–1.27) | 1.05 (1.00–1.10) | 1.06 (0.97–1.16) | 1.06 (0.99–1.14) | 1.17 (1.04–1.31) |
| 12 | 1.06 (0.96–1.18) | 1.16 (0.99–1.36) | 1.05 (0.98–1.13) | 1.05 (0.93–1.18) | 1.07 (0.97–1.19) | 1.19 (1.01–1.39) |
| 18 | 1.08 (0.94–1.23) | 1.18 (0.96–1.44) | 1.06 (0.97–1.16) | 1.04 (0.89–1.20) | 1.09 (0.95–1.24) | 1.21 (0.99–1.48) |
| 24 | 1.09 (0.93–1.28) | 1.20 (0.93–1.54) | 1.07 (0.95–1.20) | 1.02 (0.85–1.23) | 1.10 (0.93–1.29) | 1.23 (0.96–1.58) |
| 30 | 1.10 (0.91–1.34) | 1.22 (0.91–1.64) | 1.07 (0.94–1.23) | 1.01 (0.81–1.25) | 1.11 (0.91–1.35) | 1.25 (0.93–1.69) |
| 36 | 1.12 (0.89–1.40) | 1.24 (0.88–1.75) | 1.08 (0.92–1.27) | 1.00 (0.78–1.28) | 1.12 (0.89–1.41) | 1.28 (0.91–1.80) |
| 42 | 1.13 (0.88–1.46) | 1.26 (0.86–1.86) | 1.09 (0.91–1.30) | 0.98 (0.74–1.31) | 1.13 (0.87–1.47) | 1.30 (0.88–1.92) |