Table 6.
Interrupted time series regression coefficients for outpatient department visits, deliveries and DPT3 doses
| N | Fee removal coefficient (se) | Pre-slope coefficient (se) | Post-slope coefficient (se) | Post-pre coefficient (se) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Outpatient visits | |||||||||
| BHC | 329 | 149.14*** | (13.69) | 6.13*** | (0.42) | 15.33*** | (1.52) | 9.21*** | (1.65) |
| CHC | 226 | 256.72*** | (26.41) | 13.12*** | (0.86) | 26.48*** | (3.03) | 13.36*** | (3.32) |
| DH | 33 | 560.72*** | (134.33) | 36.14*** | (3.96) | 62.31*** | (14.67) | 26.17 | (15.78) |
| Deliveries | |||||||||
| BHC | 296 | 0.41 | (0.23) | 0.07*** | (0.01) | 0.03 | (0.02) | −0.04 | (0.03) |
| CHC | 266 | 0.38 | (0.47) | 0.35*** | (0.02) | 0.18** | (0.06) | −0.17* | (0.07) |
| DH | 39 | 7.32 | (4.25) | 1.27*** | (0.16) | −0.03 | (0.53) | −1.31* | (0.59) |
| Antenatal visits | |||||||||
| BHC | 320 | 5.02*** | (1.12) | 0.489*** | (0.03) | −0.66*** | (0.12) | −1.15*** | (0.13) |
| CHC | 226 | 7.26** | (2.15) | 0.706*** | (0.06) | −0.91*** | (0.23) | −1.62*** | (0.24) |
| DH | 33 | 15.45* | (7.37) | 1.71*** | (0.21) | −2.79*** | (0.80) | −4.50*** | (0.86) |
| DPT3 | |||||||||
| BHC | 377 | 7.50*** | (1.42) | −0.06 | (0.13) | −0.49* | (0.20) | −0.43 | (0.31) |
| CHC | 257 | 10.48*** | (2.32) | 0.64** | (0.21) | −1.70*** | (0.32) | −2.34*** | (0.50) |
| DH | 38 | 23.53** | (8.06) | 0.35 | (0.78) | −1.91 | (1.18) | −2.26 | (1.84) |
Note: Coefficients from a GEE regression with autoregressive model of first order [AR(1)] error correlation modelled on the seasonally de-trended data. Model for DPT3 only considers 1 year and 1 month prior to intervention and 14 months post-intervention, due to drug stock-outs 2 years prior to the intervention that severely reduced DPT3 doses given.
*P < 0.05; **P < 0.01; ***P < 0.001.
N represents the number of facilities included across the 51 time points (27 for DPT3) in the model.
BHC = basic health centre; CHC = comprehensive health centre; DH = district hospital.