Table 2.
Characteristics of peritonitis and microbial findings
| PMX-HP group (n = 119) | Control group (n = 113) | |
|---|---|---|
| Peritonitis characteristics, no. (%) | ||
| Primary | 49 (41) | 54 (48) |
| Post-surgery | 70 (59) | 59 (52) |
| Lower gastrointestinal tract perforation (%) | (82) | (79) |
| Upper gastrointestinal tract perforation (%) | (32) | (30) |
| Biliary peritonitis or undetermined (%) | (5) | (4) |
| Positive blood culture, no. (%) | 31 (26) | 30 (27) |
| Microbiological isolation on surgical samples | ||
| n samples available | 110 | 107 |
| Gram-negative bacteria, no. (%) | 82 (75) | 83 (78) |
| Gram-positive bacteria, no. (%) | 64 (59) | 63 (59) |
| Anaerobes, no. (%) | 17 (16) | 23 (21) |
| Fungi, no. (%) | 26 (24) | 13 (12) |
| No isolation, no. (%) | 14 (13) | 9 (8) |
| Percentage of patients with adequate antibiotic therapy | 92 | 91a |
aMissing data