Table 2 Risk-factors for surgical site infection (SSI) with laparoscopic and open surgeries
Risk-factor | Laparoscopic (596) | Open (269) | ||||
|---|---|---|---|---|---|---|
SSI N = 110 (%) | No SSI N = 486(%) | P-value | SSI N = 87 (%) | No SSI N = 182 (%) | P-value | |
Age, years | 68.1 ± 14.6 | 66.8 ± 15.5 | 0.414 | 70.7 ± 14.1 | 70.9 ± 14.8 | 0.924 |
Men, N | 60 (54.5) | 231 (47.5) | 0.184 | 55 (63.2) | 96 (52.2) | 0.089 |
Weight, kg | 76.5 ± 23.1 | 73.0 ± 17.6 | 0.133 | 72.4 ± 17.8 | 69.2 ± 16.6 | 0.149 |
DM | 33 (30) | 104 (21.4) | 0.053 | 21 (24.1) | 56 (30.8) | 0.26 |
CVD | 25 (22.7) | 99 (20.4) | 0.582 | 29 (33.3) | 42 (23.1) | 0.074 |
CKD | 12 (10.9) | 25 (5.1) | 0.024 | 12 (13.8) | 10 (5.5%) | 0.02 |
COPD | 14 (12.7) | 24 (4.9) | 0.003 | 13 (14.9) | 15 (8.2) | 0.092 |
Immunosuppression | 8 (7.3) | 21 (4.3) | 0.194 | 8 (9.2) | 7 (3.8) | 0.074 |
Malignancy | 84 (76.4) | 372 (76.5) | 0.968 | 66 (75.9) | 152 (83.5) | 0.134 |
IBD | 7 (6.4) | 21 (4.3) | 0.153 | 9 (10.3) | 13 (7.1) | 0.37 |
Prior surgery | 34 (30.9) | 164 (33.7) | 0.569 | 41 (47.1) | 80 (44) | 0.625 |
Pre-op hospital days | 1.9 ± 2.9 | 1.5 ± 2.2 | 0.253 | 2.9 ± 5.2 | 2.4 ± 4.0 | 0.40 |
Rectal surg | 16 (14.5) | 67 (13.8) | 0.835 | 23 (26.4) | 29 (15.9) | 0.041 |
Risk Index | 0.005 | 0.082 | ||||
0 | 20 | 155 | 23 | 58 | ||
1 | 65 | 263 | 36 | 88 | ||
≥ 2 | 25 | 68 | 28 | 36 | ||
Surgery duration > 75% | 59 (63.9) | 262 (54.4) | 0.071 | 40 (46.5) | 63 (34.8) | 0.066 |
Stoma created | 13 (11.8) | 36 (7.4) | 0.128 | 17 (19.5) | 25 (13.7) | 0.220 |
Converted to open | 27 (24.5) | 63 (13) | 0.002 | |||
Appropriate prophylaxis | 86 (81.1) | 366 (76.3) | 0.279 | 58 (67.4) | 99 (57.6) | 0.125 |
Second antibiotic dose | 18 (16.4) | 44 (9.1) | 0.023 | 15 (17.2) | 13 (7.1) | 0.011 |
Post-op hospital days | 13 ± 18.9 | 6.7 ± 3.6 | < 0.001 | 20.0 ± 23.2 | 11.1 ± 25.8 | 0.005 |
Reoperation | 17 (15.5) | 6 (1.2) | < 0.001 | 23 (26.4) | 6 (3.3) | < 0.001 |
Readmission | 34 (30.9) | 35 (7.2) | < 0.001 | 21 (24.1) | 28 (15.4) | 0.082 |
Mortality | 2 (1.8) | 5 (1) | 0.488 | 8 (9.2) | 2 (1.1) | 0.002 |