Skip to main content

Advertisement

Table 2 Demographic data and severity of the underlying disease of analyzed patients (n = 22) with BSI due to ceftazidime-resistant P. aeruginosa strains: difference between PER-1-positive (PER-1-P-Pa) and ESBL-negative Pa (ESBL-N-Pa) isolates.a

From: Pseudomonas aeruginosa bloodstream infections: risk factors and treatment outcome related to expression of the PER-1 extended-spectrum beta-lactamase

Demographic and clinical parameters PER-1-Pa ESBL-N-Pa P value b
No. BSI-patients 9 13 -
Male/Female 7/2 11/2 -
Age, mean year ± SD 58.0 ± 22.1 63.4 ± 17.7 NS
Patient location    
   - Medical 3 (33.3) 7 (53.8) NS
   - Surgical 0 (0.0) 2 (15.4) NS
   - ICU 6 (66.7) 4 (30.8) 0.10
McCabe & Jackson groups    
   - Nonfatal 6 (66.7) 5 (38.5) NS
   - Ultimately fatal 1 (11.1) 5 (38.5) NS
   - Rapidly fatal 2 (22.2) 3 (23.1) NS
Charlson weighted index, mean ± SD 2.9 ± 2.57 3.5 ± 2.6 NS
Previous hospitalizations (during the last 12 months) 5 (55.6) 9 (69.2) NS
Previous use of antibiotics (during the last 12 months) 5 (55.6) 7 (53.8) NS
Hospital-acquired BSI 9 (100) 9 (69.2) 0.07
Mean length of hospital stay (MLHS), mean ± SD (days) 69.3 ± 58.0 41.6 ± 35.3 0.09
   - MLHS before BSI diagnosis, mean ± SD (days) 22.9 ± 8.0 17.1 ± 24.0 NS
   - MLHS after the BSI, mean ± SD (days) 46.4 ± 57.5 24.4 ± 20.6 0.11
28-day mortality 2 (22.2) 1 (7.7) NS
Mortality attributable to BSI (within 7 days of onset) 1 (11.1) 0 (0.0) NS
  1. a Data are expressed as no. (%) of patients, unless otherwise indicated.
  2. b -, not calculated; NS, not significant.