Length of stay, readmission and mortality outcomes from interrupted time series analysis
| Outcome | n | Time (95% CI) | P value | Intervention (95% CI) | P value | Time after intervention (95% CI) | P value |
| Length of stay, per cent change per month | 160 434 | 0.02 (−0.06 to 0.10) | 0.61 | −0.66 (−2.56 to 1.28) | 0.50 | −0.25 (−0.34 to −0.17) | <0.001 |
| 30-day hospital readmission, per cent change in odds per month | 147 008 | −0.35 (−0.72 to 0.03) | 0.07 | −1.01 (−8.74 to 7.37) | 0.81 | 0.31 (−0.11 to 0.72) | 0.15 |
| In-hospital death, per cent change in odds per month | 160 434 | −0.84 (−1.70 to 0.03) | 0.06 | 6.72 (−15.04 to 34.04) | 0.58 | 0.20 (−0.81 to 1.21) | 0.70 |
All results are adjusted for age, sex, race/ethnicity, diagnosis related group (DRG) weight, comorbidity, medicine versus surgery and payer.