TABLE 1.
Characteristics of Patients with Catheter-Associated Urinary Tract Infection by Intensive Care Unit (ICU) Status in 15 Hospitals in the Duke Infection Control Outreach Network, 2010–2011
| Variable | Total (n = 503) | Non-ICU (n = 360) | ICU (n = 143) | Risk ratio (95% CI) | P |
|---|---|---|---|---|---|
| Female sexa | 325 (68) | 248 (71) | 77 (59) | 1.20 (1.03–1.41) | .01 |
| Age, years | |||||
| Median (IQR) | 72 (61–82) | 75 (63–84) | 64 (56–74) | <.001 | |
| <18 | 12 (2) | 10 (3) | 2 (1) | … | |
| >80 | 138 (27) | 118 (33) | 20 (14) | 2.31 (1.52–3.61) | <.001 |
| Racea | |||||
| White | 295 (67) | 221 (70) | 74 (60) | Reference | Reference |
| Black | 134 (30) | 93 (29) | 41 (33) | 0.83 (0.62–1.12) | .2 |
| Other | 11 (3) | 3 (1) | 8 (7) | … | … |
| Location before hospitalization | |||||
| Home | 386 (77) | 264 (73) | 122 (85) | Reference | Reference |
| Nursing home/extended care facility | 95 (19) | 82 (23) | 13 (9) | 2.46 (1.42–4.27) | <.001 |
| Hospital | 12 (2) | 7 (2) | 5 (4) | 0.66 (0.21–2.03) | .5 |
| Other | 10 (2) | 7 (2) | 3 (2) | … | … |
| Admitting servicea | |||||
| Medicine | 335 (74) | 238 (72) | 97 (81) | Reference | Reference |
| Surgery | 71 (16) | 58 (18) | 13 (11) | 1.66 (0.95–2.90) | .07 |
| Other | 45 (10) | 35 (11) | 10 (9) | … | … |
| Discharge dispositiona | |||||
| Home | 76 (20) | 55 (20) | 21 (20) | Reference | Reference |
| Healthcare serviceb | 208 (55) | 169 (62) | 39 (38) | 1.16 (0.95–1.42) | .1 |
| Other hospital | 30 (8) | 18 (7) | 12 (12) | 0.68 (0.37–1.24) | .2 |
| Death/hospice | 43 (11) | 18 (7) | 26 (24) | 0.44 (0.28–0.72) | <.001 |
| Other | 18 (5) | 12 (4) | 6 (6) | … | … |
| Hospitalization within previous 1 yeara | 260 (52) | 196 (55) | 64 (45) | 1.21 (0.99–1.48) | .06 |
| Polymicrobial infection | 11 (2) | 7 (2) | 4 (3) | 0.70 (0.21–2.34) | .6 |
| Time from admission to diagnosis, median days (IQR) | 7 (4–12) | 7 (3–11) | 9 (4–19) | … | <.001 |
| Time from diagnosis to discharge, median days (IQR)a | 5 (2–12) | 4 (2–9) | 8 (4–20) | … | <.001 |
| Total length of stay, median days (IQR)a | 13 (7–25) | 11 (7–19) | 23 (9–38) | … | <.001 |
NOTE. Data are no. (%) of patients, unless otherwise indicated. CI, confidence interval; IQR, interquartile range.
a
Missing information for the following variables: sex, 22 (4%); race, 63 (13%); admitting service, 52 (10%); discharge disposition, 128 (25%); hospitalization within 1 year, 11 (2%); and discharge date, 103 (20%).
b
Includes skilled nursing facility, other extended care facility, and home health services.