Table I.
Demographic and clinical parameters of patients with Proteus spp. BSIs (n = 83).
| Variable | Death in 14 days (n = 24) | Survival (n = 59) | p-value* | ||
|---|---|---|---|---|---|
| Age (years), median (min-max) | 77.5 (55–94) | 67.0 (12–88) | 0.0025** | ||
| Sex | Men, No. (%) | 13 (54.2) | 33 (55.9) | 0.9229 | |
| Women, No. (%) | 11 (45.8) | 26 (44.1) | |||
| Length of stay in hospital (days), median (min-max) | 19.5 (1–139) | 38 (5–406) | 0.0142** | ||
| Length of stay in hospital before Proteus spp. BSI (days), median (min-max) | 9.5 (0–138) | 7.5 (0–380) | 1.0000** | ||
| Primary bacteremia, No. (%) | 11 (45.8) | 23 (39.0) | 0.7420 | ||
| Secondary bacteremia, No. (%) | 13 (54.2) | 36 (61.0) | |||
| Adequate empiric antibiotic therapy, No. (%) | 16 (66.7) | 43 (72.9) | 0.7648 | ||
| More than one strain in blood culture, No. (%) | 9 (37.5) | 20 (34.0) | 0.9537 | ||
| ESBL Proteus spp., No. (%) | 4 (16.7) | 11 (18.6) | 0.9185 | ||
| Predisposing factors | Urinal catheter, No. (%) | 18 (75.0) | 44 (67.8) | 0.8117 | |
| Central Venus Catheter, No. (%) | 15 (62.5) | 28 (47.5) | 0.3168 | ||
| Diabetes, No. (%) | 7 (29.2) | 10 (16.9) | 0.3419 | ||
| Hospitalization during past half year, No. (%) | 13 (54.2) | 25 (42.4) | 0.4625 | ||
| Cancer, No. (%) | 3 (12.5) | 4 (6.8) | 0.6784 | ||
| Surgery during past half year, No. (%) | 9 (37.5) | 33 (55.9) | 0.2003 | ||
| Cardio-vascular diseases, No. (%) | 15 (62.5) | 23 (39.0) | 0.0879 | ||
| Chronic wounds, No. (%) | 7 (29.2) | 13 (22.0) | 0.6849 | ||
*
Chi2 test,
**
U Mann-Whitney test