Table 3.
Microbiologic characteristics of infectious episodes. Comparison between groups D and ND
| Group D n = 60 |
Group ND n = 73 |
P-value | |
|---|---|---|---|
| Microbiological samples, n (%) | 59 (98) | 63 (86) | 0.17 |
| Positive microbiological documentation, n (%) | 40 (66.6) | 39 (53.4) | 0.23 |
| Inadequate empiric antibiotherapy, n (%) § | 3 (7.7%) | 11 (27.5%) | 0.02 |
| Bacteria related to infection, n (%): | |||
| Staphylococcus aureus | 11 (18.3) * | 7 (9.6) * | 0.18 |
| CoNS | 5 (8.3) $ | 0 | 0.02 |
| Streptococci species | 3 (5) | 8 (11) | 0.47 |
| Enterococci species | 2 (3.3) | 2 (2.7) | 0.89 |
| Gram negative cocci | 2 (3.3) | 0 | 0.14 |
| Enterobacteria | 16 (26.6) | 23 (31.5) | 0.54 |
| nfGNB | 4 (6.6) | 5 (6.8) | 0.9 |
| Others gram negative bacilli | 7 (11.6) | 5 (6.8) | 0.14 |
| Intracellular bacteria | 0 | 1 (1.3) | 0.34 |
| MDR responsible for the infection, n (%) | 6 (10) | 7 (9.6) | 0.97 |
| Polymicrobial infections, n (%) | 13 (21.6) | 13 (17.8) | 0.81 |
| Infection recurrence, n (%) | 3 (5) | 14 (19) | 0.01 |
| MDR during the ICU stay, n (%) | 6 (10) | 14 (19.1) | 0.1 |
§ Among documented infection; *1 methicillin resistant; $ 2 methicillin resistant.
CoNS, coagulase negative staphylococcus; MDR, multidrug resistant pathogen; nfGNB, non fermenting Gram-negative bacilli