Table 1.
Population baseline characteristics between AP patients within 24 h of admission vs. those over 24 h.
| Variable | AP within 24 h | AP over 24 h | P |
|---|---|---|---|
| N = 2090 | N = 3934 | ||
| Median age (years) (IQR) | 51 (40-63) | 51 (40-63) | 0.957 |
| Sex, N (%) | <0.001 | ||
| Male | 1207 (58) | 2025 (52) | |
| Female | 883 (42) | 1909 (48) | |
| Pancreatitis etiology, N (%) | |||
| Biliary | 1173 (56) | 2466 (63) | <0.001 |
| Alcoholism | 130 (6) | 248 (6) | 0.911 |
| Hypertriglyceridemia | 531 (25) | 656 (17) | <0.001 |
| Idiopathic | 185 (9) | 398 (10) | 0.114 |
| Comorbidities, N (%) | |||
| Posthypertriglyceridemia | 195 (9) | 196 (5) | <0.001 |
| Diabetes mellitus | 166 (8) | 253 (6) | 0.028 |
| Pancreatic necrosis | 352 (17) | 834 (21) | <0.001 |
| Severity classification, N (%) | |||
| MAP | 970 (46) | 1701 (43) | 0.017 |
| MSAP | 806 (39) | 1574 (40) | 0.275 |
| SAP | 314 (15) | 659 (17) | 0.083 |
| Hospital LOS (days) (IQR) | 8 (6-12) | 9 (6-13) | 0.001 |
| Mortality (%) | 1.0 | 1.4 | <0.001 |
AP, acute pancreatitis; N, number; IQR, interquartile range.