Safety endpoints before and after intervention at the intervention site compared with control sites
| Safety endpoints | Control period | Intervention period | Difference | 95% CI |
| Number of critically abnormal routine laboratory test results per 100 patient-days | 1.27 | 1.25 | 0.02 | −0.15 to 0.20 |
| Number of stat tests per 100 patient-days | 22 | 24 | −2.00 | −2.70 to -1.40 |
| Number of blood cultures per 100 patient-days | 9.6 | 15.6 | −6.00 | −6.47 to -5.53 |
| Length of stay (days) | 15.50 | 12.18 | 3.32 | 2.13 to 4.51 |
| ICU hours* | 9.6 | 10.4 | −0.80 | −4.20 to 2.60 |
| In-patient mortality per 100 patients | 7.60 | 6.90 | 0.70 | −0.071 to 2.10 |
| 30-day mortality per 100 patients | 9.00 | 9.10 | −0.1 | −1.50 to 1.50 |
| 30-day readmissions per 100 patients | 12.3 | 12.8 | −0.5 | −2.20 to 1.40 |
*Mean difference in hours spent on ICU for patients transferred to and from the ICU.
ICU, intensive care unit.