Table 1.
Reasons for exclusion
| Reason for exclusion | Number (%) | Acute hospital mortality, Deaths/N (%) |
|---|---|---|
| Excluded from APACHE II | 445 (1.5) | 290/407 (71.3) |
| Death within 4 hours | 231 (0.8) | 231/231 (100) |
| Missing core physiology data | 103 (0.3) | 33/101 (32.7) |
| Age less than 16 years | 65 (0.2) | 5/30 (16.7) |
| Admission for primary burn injury | 46 (0.2) | 21/45 (46.7) |
| Low risk patients | 2,305 (7.8) | 174/2291 (7.6) |
| High dependency unit patient | 1,707 (5.8) | 116/1694 (6.8) |
| Admission for post-surgical recovery | 598 (2.0) | 58/597 (9.7) |
| Responsibility of other team | 88 (0.3) | 35/88 (39.8) |
| Awaiting transfer | 45 (0.2) | 22/45 (48.9) |
| In critical care under another team | 43 (0.1) | 13/43 (30.2) |
| Unspecified | 761 (2.6) | 232/743 (31.2) |
| ‘Unit decision not to score patient’ | 369 (1.2) | 118/360 (32.8) |
| Other (unspecified) | 298 (1.0) | 87/293 (29.7) |
| Reason missing or not documented | 94 (0.3) | 27/90 (30.0) |
Reasons for exclusion for patients flagged in the SICSAG database extract as ‘Exclude from severity of illness scoring’.
APACHE, Acute Physiology And Chronic Health Evaluation; SICSAG, Scottish Intensive Care Society Audit Group.