Table 1 Clinical characteristics of the study population.
Variables | nS-HAI n = 293 | S-HAI n = 87 | CoNS-HAI n = 58 | Sa-HAI n = 29 | Missing data | |
|---|---|---|---|---|---|---|
Demographic characteristics and comorbidities | ||||||
Age (years) | 61 [50–72] | 62 [45–77] | 63 [46–77] | 57 [37–77] | – | |
Male gender | 164 (56) | 42 (48) | 32 (55) | 10 (34) | – | |
Fatal underlying diseases | 91 (31) | 31 (36) | 25 (43) | 6 (21)† | – | |
Immunosuppression | 101 (34) | 27 (31) | 19 (33) | 8 (28) | – | |
Cancer | 111 (38) | 27 (31) | 20 (34) | 7 (24) | – | |
Diabetes mellitus | 58 (20) | 11 (13) | 4 (7) | 7 (24)† | – | |
Initial surgery | ||||||
Emergency procedure | 106 (36) | 39 (45) | 30 (52) | 9 (32)† | – | |
Septic or contaminated surgery | 115 (39) | 33 (38) | 25 (43) | 8 (28) | – | |
Antibiotics before reoperation for HAI | 181 (62) | 53 (61) | 34 (62) | 11 (38)† | 2/0/0/0 | |
Interval between initial surgery and reoperation (days) | 7 [4–12] | 7.5 [4–10] | 7 [5–11] | 8 [3–10] | 2/1/1/0 | |
Severity criteria at the time of reoperation | ||||||
SAPS II score | 49 [37–60] | 46 [33–57] | 47 [32–58] | 44 [33–56] | – | |
SOFA score | 8 [5–10] | 7 [4–9]* | 7 [4–9] | 7 [4–10] | – | |
Hemodynamic failure | 197 (67) | 53 (61) | 36 (62) | 17 (59) | – | |
Respiratory failure | 141 (48) | 32 (37) | 23 (40) | 9 (31) | – | |
Kidney failure | 83 (28) | 21 (24) | 12 (21) | 9 (31) | – | |
Source of postoperative peritonitis and surgical observations | ||||||
Anastomotic leak | 107 (37) | 26 (30) | 16 (28) | 10 (34) | – | |
Bowel perforation | 92 (31) | 31 (36) | 19 (33) | 12 (41) | – | |
Abscess | 47 (16) | 18 (21) | 14 (24) | 4 (14) | – | |
Gastroduodenal source | 52 (18) | 26 (30)* | 16 (28) | 10 (34) | 7/1/1/0 | |
Small bowel source | 75 (26) | 18 (21) | 12 (21) | 6 (21) | 7/1/1/0 | |
Colonic or rectal source | 79 (28) | 21 (24) | 12 (21) | 9 (31) | 7/1/1/0 | |
Generalized peritonitis | 76 (26) | 18 (21) | 13 (22) | 5 (17) | 7/1/1/0 | |
