Table 3 Subgroup analysis of the validation cohort excluding cases with evidence of organ failure within first 24 h of hospitalisation
| BISAP score | n = 16503 | |
| Number of cases | Observed mortality | |
| 0 | 4796 | 0.1% |
| 1 | 7287 | 0.4% |
| 2 | 3307 | 1.6% |
| 3 | 916 | 3.6% |
| 4 | 176 | 7.4% |
| 5 | 21 | 9.5% |
-
Overall and pairwise χ2 p<0.001.
-
BISAP, blood urea nitrogen, impaired mental status, systemic inflammatory response syndrome, age and pleural effusion.
