Table 1 Demographic characteristics at initial surgery S0, and interval antibiotic therapy in the 100 patients with PP.
Variable | Patients with MDR bacteria (n = 41) | Patients with other bacteria (n = 59) | P |
|---|---|---|---|
Age (year), mean ± SD | 63 ± 17 | 60 ± 16 | 0.37 |
Gender, male, n (%) | 24 (59) | 32 (54) | 0.83 |
Severity of underlying disease | Â | Â | Â |
   Fatal (within 5 years), n (%) | 16 (39) | 21 (36) | 0.92 |
   Malignancy, n (%) | 17 (41) | 22 (37) | 0.86 |
   Diabetes mellitus, n (%) | 7 (17) | 11 (19) | 0.91 |
   Steroids or immunosuppressive therapy, n (%) | 15 (37) | 27 (46) | 0.36 |
Initial surgery | Â | Â | Â |
   In emergency, n (%) | 20 (49) | 15 (25) | 0.01 |
   Contaminated or infected wound class, n (%) | 25 (61) | 19 (32) | 0.016 |
   Prior hospitalization (within 3 months prior S0), n (%) | 24 (59) | 29 (49) | 0.24 |
   Prior antibiotic therapy (within 3 months, prior S0), n (%) | 18 (44) | 13 (22) | 0.02 |
Interval antibiotics, n (%) | 33 (80) | 35 (59) | 0.026 |
Broad-spectrum interval antibiotics, n (%) | 25 (61) | 11 (19) | 0.0001 |