Table 6.
Factors influencing mortality on univariate analysis
| Parameters | Group without morbidity n (%) | Group with morbidity n (%) | p |
|---|---|---|---|
| Gender | |||
| Male | 107 (82.9) | 22 (17.1) | NS |
| Female | 14 (73.7) | 5 (26.3) | |
| Age | |||
| <60 years | 82 (96.5) | 3 (3.5) | <0.001 |
| >60 years | 39 (61.9) | 24 (38.1) | |
| Admission period | |||
| <24 hours | 93 (92.1) | 8 (7.9) | <0.001 |
| >24 hours | 28 (59.6) | 19 (40.4) | |
| Shock | 3 (25) | 9 (75) | <0.001 |
| Co-morbidities | 28 (62.2) | 17 (37.8) | <0.001 |
| Free air on AXR | 98 (80.3) | 24 (19.7) | NS |
| MPI | |||
| <26 | 119 (92.2) | 10 (7.8) | <0.001 |
| >26 | 2 (10.5) | 17 (89.5) | |
| APACHE II | |||
| <11 | 111 (94) | 7 (6) | <0.001 |
| >11 | 10 (33.3) | 20 (66.7) | |
| Perforation site | |||
| Prepyloric | 85 (84.2) | 16 (15.8) | NS |
| Duodenum | 36 (76.6) | 11 (23.4) | |
| Perforation diameter | |||
| <0.5 cm | 85 (91.4) | 8 (8.6) | <0.001 |
| 0.5–1 cm | 29 (61.7) | 18 (38.3) | |
| >1 cm | 7 (87.5) | 1 (12.5) |
AXR: upright abdominal X-ray; MPI: Mannheim peritonitis index; APACHE II: acute physiology and chronic health evaluation; NS: not significant