TABLE 2.
Risk factors for antimicrobial resistance in hospitalized patients from whom enterococci were isolated
| Characteristic | No. (%) of patients with:
|
Pf | ||
|---|---|---|---|---|
| Ampicillin-resistant enterococci | HLGRa enterococci | Aminoglycoside- and ampicillin-susceptible enterococcib | ||
| Total patients | 9c | 10d | 68e | |
| Male/female | 3/6 | 4/6 | 33/35 | NS |
| Prior hospitalization | 8 (89) | 9 (90) | 15 (22) | <0.001 |
| Prior surgery | 1 (11) | 2 (20) | 5 (7) | NS |
| Prior antibiotics | 6 (67) | 3 (30) | 24 (36) | 0.03 |
| Underlying diseases | 7 (78) | 10 (100) | 60 (89) | NS |
| Fast food >3×/week | 0 (0) | 0 (0) | 3 (4) | NS |
| Dental procedure | 1 (11) | 2 (20) | 21 (31) | NS |
| Prior nursing home | 0 (0) | 1 (10) | 1 (2) | NS |
| Travel | 2 (22) | 2 (20) | 29 (42) | NS |
a
HLGR, high-level-gentamicin-resistant.
b
Gentamicin and streptomycin MIC, <2,000 μg/ml; ampicillin MIC, <16 μg/ml.
c
Includes six E. faecium, two E. faecalis, and one E. gallinarum isolates.
d
All E. faecalis isolates.
e
Includes 48 E. faecalis isolates and 20 E. faecium isolates.
f
All variables were not significant (NS) in multivariate analysis.