Table 2.
Odds of mortality within 24 hours of an abnormal mental status score
| Mental Status Score | Observations, n (%) | Odds Ratio for mortality (95%CI) |
|---|---|---|
| GCS Eye (AVPU) | ||
| 4 (Alert) | 289,857 (98) | Reference |
| <4 (Not Alert) | 6,117 (2) | 33.8 (23.9–47.9) |
| GCS Verbal | ||
| 5 | 277,862 (94) | Reference |
| 4 | 11,258 (4) | 4.7 (2.8–7.9) |
| <4 | 6,854 (2) | 52.7 (38.0–73.2) |
| GCS Motor | ||
| 6 | 287,441 (97) | Reference |
| <6 | 8,533 (3) | 41.8 (30.7–56.9) |
| GCS Total | ||
| 15 | 276,042 (93) | Reference |
| 13,14 | 12,437 (4) | 5.2 (3.3–8.3) |
| <13 | 7,495 (3) | 55.5 (40.0–77.1) |
| RASS | ||
| >0 | 6,867 (2) | 8.5 (5.6–13.0) |
| 0 | 275,708 (93) | Reference |
| <0 | 13,339 (5) | 25.8 (19.2–34.6) |
Odds ratios, with 95% confidence intervals (CI) comparing the probability of mortality within 24 hours of an abnormal mental status score to the probability of mortality within 24 hours of a normal mental status score (“Reference”). All calculations control for clustering of observations within the same admission. All odds ratios were significant at P<0.001.
Abbreviations: AVPU, Alert-Voice-Pain-Unresponsive; GCS, Glascow Coma Scale; RASS, Richmond Agitation Sedation Scale; n, number of observations.