Table 1 Patient characteristics: analysis A: cases and propensity matched uninfected controls (controls A)
|  | Cases (n = 71) | Controls (n = 71) | p value |
|---|---|---|---|
Gender | Â | Â | 0.49 |
Male | 43 (60.6%) | 47 (66.2%) | Â |
Female | 28 (39.4%) | 24 (33.8%) | Â |
Intensive care unit (ICU) | Â | Â | 0.11 |
Medical ICU | 45 (63.4%) | 35 (50%) | Â |
Surgical ICU | 26 (36.6%) | 35 (70%) | Â |
Admission to the ICU | Â | Â | 0.61 |
Direct admission | 35 (49.3%) | 38 (53.5%) | Â |
Transfer from the ward | 36 (50.7%) | 33 (46.5%) | Â |
Diabetes | 27 (38%) | 21 (29.6%) | 0.29 |
Renal impairment | 17 (23.9%) | 13 (18.3%) | 0.41 |
Cerebrovascular accident | 7 (9.9%) | 12 (16.9%) | 0.22 |
Peptic ulcer disease | 4 (5.6%) | 0 (0%) | 0.12 |
Myocardial infarction | 12 (16.9%) | 10 (14.1%) | 0.64 |
Congestive cardiac failure | 1 (1.4%) | 4 (5.6%) | 0.37 |
Liver disease | 2 (2.8%) | 3 (4.2%) | 1 |
Malignancy | 14 (19.7%) | 8 (11.3%) | 0.61 |
Central venous catheter | 43 (60.6%) | 54 (76.1%) | 0.08 |
Endotracheal intubation | 66 (92.9%) | 71 (100%) | 0.09 |
Mean days of duration of mechanical ventilation (SD) | 5.8 (SD4.7) | 4.7 (SD3.9) | 0.14 |
Prior SGNB** infection or colonization in the previous 6Â months months | 18 (25.4%) | 21 (29.6%) | 0.57 |
Prior Carbapenems in the past 6Â months | 42 (59.2%) | 38 (53.5%) | 0.61 |
Prior 3rd generation Cephalosporins in the past 6Â months | 46 (64.8%) | 36 (50.7%) | 0.12 |
Surgery prior to RGNB*** infection | 35 (49.3%) | 39 (54.9%) | 0.61 |
Stay in ICU for more than 5Â days | 51 (71.8%) | 55 (77.5%) | 0.56 |
Mortality | 36 (50.7%) | 18 (25.4%) | 0.003 |
Mean age (SD) | 60.6 (SD1.8) | 59.1 (SD17.9) | 0.58 |
Mean APACHEII (SD) | 18.1 (SD7.3) | 19.6 (SD7.7) | 0.24 |
Mean age adjusted Charlson score (SD) | 3.4 (SD2.9) | 3.1 (SD2.9) | 0.56 |
Median PreICU stay (range) | 1 (0–40) | 0 (0–29) | 0.54 |
Mean propensity scores (SD) | 0.15 (SD0.2) | 0.14 (SD0.2) | 0.92 |