ICU days | All chest radiographs | Urgent chest radiographs | Stat chest radiographs | Routine chest radiographs | Chest CT scans | Catheter or tube insertions | |
---|---|---|---|---|---|---|---|
Before: 15 June 2010–14 June 2011 | 5593 | 4066 | 1106 | 1063 | 1897 | 395 | 1163 |
Tests per patient-day (95% CI) | 0.73 (0.70 to 0.75) | 0.20 (0.18 to 0.21) | 0.19 (0.18 to 0.20) | 0.34 (0.32 to 0.36) | 0.07 (0.06 to 0.08) | 0.21 (0.19 to 0.22) | |
After: 15 June 2011–15 June 2012 | 5545 | 2980 | 1128 | 1240 | 612 | 431 | 1204 |
Tests per patient-day (95% CI) | 0.54 (0.51 to 0.56) | 0.20 (0.19 to 0.22) | 0.22 (0.21 to 0.24) | 0.11 (0.10 to 0.12) | 0.08 (0.07 to 0.09) | 0.22 (0.20 to 0.23) |
ICU, intensive care unit.