Table 3 Effects of DIP pay reform on length of stay and medication cost ratio in pediatric pneumonia patients: interrupted time series linear regression model results
Variable | β | S.E. | 95% CI | P value |
|---|---|---|---|---|
Average hospital length of stay (days) | ||||
Baseline trend (β1) | 0.015 | 0.011 | -0.007 to 0.036 | 0.176 |
Change in level (β2) | -0.794 | 0.249 | -1.282 to -0.306 | 0.001 |
Change in slope (β3) | -0.027 | 0.013 | -0.052 to -0.002 | 0.031 |
Post-reform trend (β1 + β3) | -0.013 | 0.007 | -0.027 to 0.001 | 0.062 |
Cure rate (%) | ||||
Baseline trend (β1) | 0.175 | 0.115 | -0.051 to 0.402 | 0.129 |
Change in level (β2) | -3.232 | 2.639 | -8.404 to 1.940 | 0.221 |
Change in slope (β3) | 0.020 | 0.135 | -0.244 to 0.284 | 0.882 |
Post-reform trend (β1 + β3) | 0.192 | 0.074 | 0.048 to 0.337 | 0.009 |
Medication cost ratio (%) | ||||
Baseline trend (β1) | -0.157 | 0.087 | -0.327 to 0.013 | 0.070 |
Change in level (β2) | -1.222 | 1.979 | -5.101 to 2.657 | 0.537 |
Change in slope (β3) | 0.094 | 0.101 | -0.104 to 0.292 | 0.351 |
Post-reform trend (β1 + β3) | -0.060 | 0.056 | -0.169 to 0.050 | 0.283 |
Antibiotic cost ratio (%) | ||||
Baseline trend (β1) | 0.096 | 0.166 | -0.229 to 0.421 | 0.563 |
Change in level (β2) | 0.188 | 3.791 | -7.242 to 7.617 | 0.961 |
Change in slope (β3) | -0.218 | 0.194 | -0.597 to 0.162 | 0.260 |
Post-reform trend (β1 + β3) | -0.124 | 0.104 | -0.328 to 0.080 | 0.234 |