Table 1.
Patient demographics, clinical and culture characteristics, and exposures.
| Patient characteristics (n=408) | Number (%)a |
|---|---|
| Demographics | |
| Age, years, mean (SD) | 68.1 (12.2) |
| Sex, female | 6 (1.5) |
| Comorbidities | |
| Charlson comorbidity index, median (IQR) | 3 (1–5) |
| Chronic kidney disease | 162 (39.7) |
| Chronic liver disease | 36 (8.8) |
| HIV/AIDS | 5 (1.2) |
| Malignancy or tumor | 49 (12.0) |
| CHF | 90 (22.1) |
| Diabetes | 165 (40.4) |
| Cerebrovascular disease | 60 (14.7) |
| Peripheral vascular disease | 84 (20.6) |
| Healthcare exposures in past 90 days | |
| Hospital admission | 331 (81.1) |
| LTCF or rehabilitation stay | 32 (7.8) |
| Surgery | 57 (14.0) |
| ICU admission | 184 (45.1) |
| Mechanical ventilation | 118 (28.9) |
| Antibiotic exposures in past 90 days | |
| Any antibiotic | 362 (88.7) |
| Penicillins | 97 (23.8) |
| Extended spectrum penicillins | 228 (55.9) |
| 1st/2nd gen cephalosporins | 70 (17.1) |
| 3rd/4th gen cephalosporins | 171 (41.9) |
| Carbapenems | 78 (19.1) |
| Tetracyclines | 74 (18.1) |
| Aminoglycosides | 79 (19.3) |
| Fluoroquinolones | 216 (52.9) |
| Vancomycin | 289 (70.8) |
| Culture characteristics (n=667) | Number (%)a |
| Care setting where culture was obtained | |
| Inpatient | 468 (70.2) |
| Outpatient | 114 (17.1) |
| Long-term care | 85 (12.7) |
| Culture source | |
| Blood | 49 (7.4) |
| Urine | 187 (28.0) |
| Respiratory | 244 (36.6) |
| Other | 187 (28.0) |
| Culture year | |
| 2012 | 225 (33.7) |
| 2013 | 126 (18.9) |
| 2014 | 81 (12.1) |
| 2015 | 79 (11.8) |
| 2016 | 48 (7.2) |
| 2017 | 58 (8.7) |
| 2018 | 50 (7.5) |
a
Data reported are number (%) unless otherwise indicated
SD, standard deviation; IQR, interquartile range; HIV/AIDS, human immunodeficiency virus/acquired immune deficiency syndrome; CHF, congestive heart failure; LTCF, long-term care facility; ICU, intensive care unit