Table 2 Segmented regression of time-series data for average inpatients cost
Parameter | Coefficients | Standard errors | t-statistic | Confidence interval | P value | |
|---|---|---|---|---|---|---|
Initial level | 3,469,434 | 615,894 | 5.633 | 2,237,646 | 4,701,222 | 0.000 |
Pre intervention slope | 117,549 | 26,919 | 4.367 | 63,711 | 171,387 | 0.000 |
Change in the level immediately after HTP | 3,886,634 | 676,910 | 5.742 | 2,532,814 | 5,240,454 | 0.000 |
Change in slope after HTP | 89,530 | 35,812 | 2.500 | 17,906 | 161,154 | 0.014 |