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Table 5 Deep SSIs distribution and univariate odds ratio stratified for principal clinical and demographic characteristics
| Characteristics | Deep SSIs | Deep SSIs | OR (95 % Confidence Interval) | P value |
|---|---|---|---|---|
| No | Yes | |||
| N (% row) | N (% row) | |||
| Sex | ||||
| Female Male | 63 (87.5) 99 (93.4) | 9 (12.5) 7 (6.6) | 2.02 (0.72;5.70) | 0.184 |
| Age (years)a | ||||
| <68 ≥68 | 78 (91.8) 84 (90.3) | 7 (8.2) 9 (9.7) | 1.19 (0.42,3.36) | 0.737 |
| Body mass index | ||||
| <25Kg/m2 ≥25Kg/m2 | 104 (94.6) 58 (85.3) | 6 (5.4) 10 (14.7) | 2.99 (1.03;8.64) | 0.043 |
| Previous neoplasia | ||||
| No Yes | 130 (91.6) 32 (88.9) | 12 (8.4) 4 (11.1) | 1.35 (0.41;4.48) | 0.619 |
| Surgery for neoplasia | ||||
| No Yes | 23 (92.0) 139 (90.9) | 2 (8.0) 14 (9.1) | 1.16 (0.25;5.44) | 0.852 |
| Diabetes | ||||
| No Yes | 130 (90.9) 32 (91.4) | 13 (9.1) 3 (8.6) | 0.94 (0.25;3.49) | 0.923 |
| Preoperative jaundice | ||||
| No Yes | 108 (90.8) 54 (91.5) | 11 (9.2) 5 (8.5) | 0.91 (0.30;2.75) | 0.866 |
| Cardiac Disease | ||||
| No Yes | 144 (93.5) 18 (75.0) | 10 (6.5) 6 (25.0) | 4.80 (1.56;14.78) | 0.006 |
| ASA physical status | ||||
| 1-2 3-4 | 116 (94.3) 46 (83.6) | 7 (5.7) 9 (16.4) | 3.24 (1.14;9.22) | 0.027 |
| Previous antibiotic therapy | ||||
| No Yes | 149 (90.9) 13 (92.9) | 15 (9.1) 1 (7.1) | 0.76 (0.09;6.25) | 0.802 |
| Preoperative Chemotherapy/RT | ||||
| No Yes | 152 (90.5) 10 (100) | 16 (9.5) 0 | / | 0.306 |
| Preoperative timea | ||||
| ≤28.5 days >28.5 days | 85 (94.4) 77 (87.5) | 5 (5.6) 11 (12.5) | 2.43 (0.81;7.30) | 0.114 |
