Table 2.
Pre- and postoperative patient characteristics
| O/S-SSIa (n = 12) | no-O/S-SSI (n = 26) | P valueb | |
|---|---|---|---|
| Operating time (min) | 328 (188–432)c | 253 (167–513) | 0.15 |
| Operative blood loss (mL) | 500 (200–2300) | 400 (150–2500) | 0.28 |
| Length of stay (days) | 18 (9–31) | 10 (7–28) | < 0.001 |
| Complications other than O/S-SSI | |||
| Midline wound infection (S-SSI)d | 1 (8)e | 3 (12) | |
| Perineal wound infection (S-SSI) | 3 (25) | 0 (0) | |
| Infection of unknown origin | 0 (0) | 2 (8) | |
| Urinary tract infection | 1 (8) | 2 (8) | |
| Respiratory failure | 2 (17) | 2 (8) | |
| Pulmonary embolism | 1 (8) | 1 (4) | |
| Redo surgery | 1 (8) | 2 (8) | |
| (No complications other than O/S-SSI) | 5 (42) | 9 (35) | |
| Accordionf—expanded classification | < 0.001 | ||
| Accordion < 3 or no complications | 1 (8) | 21 (81) | |
| Accordion 3–4 | 9 (75) | 3 (12) | |
| Accordion 5–6 | 2 (17) | 2 (8) | |
| Perineal dehiscence after 3 months | 0.16 | ||
| No | 5 (42) | 18 (69) | |
| Yes | 7 (58) | 7 (27) | |
| Unknown | 0 (0) | 1 (4) |
aOrgan/space-surgical site infection
bPearson’s chi-squared, except operating time, operative blood loss and length of stay (Mann–Whitney U test) (The chi-squared tests in this table indicate whether there are significant differences in distribution of the categories of the tested parameter)
cMedian and range
dSuperficial incisional – surgical site infection
eNumber of patients and percentage
fThe Accordion Severity Grading System of Surgical Complications