Table 3 Distribution of epidemic S. epidermidis PFGE types (≥3 isolates) and related characteristics
Group 1 | Group 2 | Group 3 | Group 4 | P- value | |
|---|---|---|---|---|---|
Common to the three epidemiological groups (CRBSIs-HCWs-HVs) | Specific to hospital environment (CRBSIs-HCWs) | Specific to CRBSIs | Commensal (HCWs, HCWs-HVs) | ||
N° isolates | 24 | 20 | 12 | 9 | NA |
Epidemic PFGE types (N° isolates) | F (6), ZO (4), R (11), N (3) | I (6), ZV (13), Y (11) | ZK (3), ZL (5), ZH (4) | ZB (4), E (5) | NA |
MLST | ST153, ST130, ST89, ST59 | ST22, ST5 | ST2 | ST33, ST73 | NA |
N° mec A positive isolates | 6 | 20 | 12 | 1 | ‹0.001 |
N° ica A positive isolates | 1 | 5 | 12 | 0 | ‹0.001 |
Median sum of resistances (range) | 2 (0–6) | 5 (2–8) | 8 (5–8) | 1 (1–4) | ‹0.001 |