Table 1.
Comparisons of the two groups
| Variables | Elderly patients | Younger patients | χ2 | P-value (p < 0.05) | |
|---|---|---|---|---|---|
| Male:Female | 201:167 | 359:191 | – | – | |
| Mean age (years) | 73.83 ± 7.78 | 42.10 ± 9.50 | – | – | |
| Etiology | Gall Stone | 276 (75.0%) | 283 (51.5%) | – | – |
| Alcoholic | 21 (5.7%) | 116 (21.1%) | |||
| hyperlipemia | 26 (7.1%) | 83 (15.1%) | |||
| others | 45 (12.2%) | 68 (12.3) | |||
| Comorbi-dities | DM* | 76 (21.2%) | 126 (22.9%) | 0.654 | 0.419 |
| CHD** | 36 (9.8%) | 11 (2%) | 27.491 | < 0.01 | |
| Severity | MAP | 316 (85.9%) | 506 (92%) | 8.849 | < 0.01 |
| MSAP | 25 (6.8%) | 19 (3.5%) | 5.386 | < 0.05 | |
| SAP | 27 (7.3%) | 25 (4.5%) | 3.871 | < 0.05 | |
| Organ failure | transient | 6 (1.6%) | 12 (7.3%) | 0.349 | 0.555 |
| persistent | 27 (7.3%) | 25 (4.5%) | 3.871 | < 0.05 | |
| Pancreatic necrosis | 28 (7.6%) | 34 (6.2%) | 0.713 | 0.399 | |
| Death | 11 (3%) | 5 (0.9%) | 5.570 | < 0.05 | |
* = Diabetes Mellitus, ** = coronary heart disease