Predictor (Independent) variables | Post operative complications n (%) | Univariate analysis | Multivariate analysis | |||||
---|---|---|---|---|---|---|---|---|
 | Absent | Present | OR | 95% CI | P value | OR | CI | P value |
Age | Â | Â | Â | Â | Â | Â | Â | Â |
 ≤20 | 39(48.8) | 41(51.3) |  |  |  |  |  |  |
 >20 | 83(37.7) | 137(62.3) | 1.6 | 0.9-2.6 | 0.087 | 3.0 | 1.4-6.3 | 0.004 |
Sex | Â | Â | Â | Â | Â | Â | Â | Â |
 Male | 102(51.0) | 98(49.0) |  |  |  |  |  |  |
 Female | 20(20.0) | 80(80.0) | 4.2 | 2.4-7.3 | <0.001 | 4.3 | 2.1-8.7 | <0.001 |
HIV status | Â | Â | Â | Â | Â | Â | Â | Â |
 Positive | 4(20.0) | 16(80.0) |  |  |  |  |  |  |
 Negative | 118(42.1) | 162(57.9) | 2.9 | 0.9-8.9 | 0.062 |  |  |  |
CD4 count | Â | Â | Â | Â | Â | Â | Â | Â |
 <200 cells/μl | 1(50.0) | 1(50.0) |  |  |  |  |  |  |
 ≥200 cells/μl | 3(23.1) | 10(76.9) | 1.3 | 0.2-2.7 | 0.082 |  |  |  |
Pre-morbid illness | Â | Â | Â | Â | Â | Â | Â | Â |
 Absent | 11(20.4) | 43(79.6) |  |  |  |  |  |  |
 Present | 111(45.1) | 135(54.9) | 3.2 | 1.6-6.5 | 0.001 | 0.4 | 0.2-1.0 | 0.041 |
Tobacco smoking | Â | Â | Â | Â | Â | Â | Â | Â |
 Yes | 30(44.1) | 38(55.9) |  |  |  |  |  |  |
 No | 92(39.7) | 140(60.3) | 1.9 | 0.4- 5.4 | 0.897 |  |  |  |
Duration of illness | Â | Â | Â | Â | Â | Â | Â | Â |
 1/12-3/12 | 115(48.7) | 121(51.3) |  |  |  |  |  |  |
 3/12-1 year | 3(7.1) | 39(92.9) | 12.4 | 3.7-41.1 | <0.001 | 8.0 | 2.1-30.0 | 0.002 |
 >1 year | 4(18.2) | 18(81.8) | 4.3 | 1.4-13.0 | 0.010 |  |  |  |
Type of ulcer | Â | Â | Â | Â | Â | Â | Â | Â |
 Traumatic ulcer | 107(59.1) | 74(40.9) |  |  |  |  |  |  |
 Vascular ulcer | 4(36.4) | 7(63.6) | 2.5 | 0.7-9.0 | 0.150 |  |  |  |
 Neoplastic ulcer | 4(20.0) | 16(80.0) | 5.8 | 1.9-18.0 | 0.002 |  |  |  |
 Infective ulcer | 3(7.0) | 40(93.0) | 19.3 | 5.7-64.7 | <0.001 | 17.6 | 4.7-66.0 | <0.001 |
 Metabolic ulcer | 2(5.7) | 33(94.3) | 23.9 | 5.6-102.5 | <0.001 | 8.4 | 1.8-39.4 | 0.007 |
 Neuropathic ulcer | 2(25.0) | 6(75.0) | 4.3 | 0.9-22.1 | 0.077 |  |  |  |
 Ulcerating skin disease | 0(0.0) | 2(100) | -- | -- | -- |  |  |  |
Ulcer size in cm | Â | Â | Â | Â | Â | Â | Â | Â |
 ≤5 | 90(47.9) | 98(52.1) |  |  |  |  |  |  |
 >5-10 | 28(31.8) | 60(68.2) | 2.0 | 1.2-3.4 | 0.013 |  |  |  |
 >10 | 4(16.7) | 20(83.3) | 4.6 | 1.5-13.9 | 0.007 |  |  |  |
Mode of treatment | Â | Â | Â | Â | Â | Â | Â | Â |
 Conservative | 14(36.8) | 24(63.2) |  |  |  |  |  |  |
 Surgical | 108(41.2) | 154(58.8) | 0.8 | 0.4-1.7 | 0.608 |  |  |  |