Table 5. Cox proportional hazards model for time-to-hospital-mortality in cohorts of patients with urinary tract infections (n=121) and their controls (n=232).
UTI: urinary tract infection. IQR, interquartile range.
| Univariable analysis | Multivariable model | |||||
|---|---|---|---|---|---|---|
| HR | 95% CI | p | aHR | 95% CI | p | |
| UTI vs. colonization | 0.63 | 0.28–1.31 | 0.22 | 0.68 | 0.30–1.45 | 0.33 |
| Age, median (IQR)* | 1.03 | 1.01–1.06 | 0.01 | 1.03 | 1.00–1.06 | 0.07 |
| Female | 1.20 | 0.60–2.58 | 0.61 | |||
| Race/Ethnicity | <0.01 | 0.03 | ||||
| White (ref.) | - | - | - | - | ||
| Black | 2.66 | 1.33–5.48 | 2.06 | 0.99–4.38 | ||
| Hispanic or Other# | 0.00 | 0.00–1.79 | 0.00 | 0.00–1.71 | ||
| Charlson comorbidity index, median (IQR) | 1.27 | 1.12–1.44 | <0.001 | 1.20 | 1.06–1.36 | <0.01 |
| Diabetes mellitus | 1.39 | 0.70–2.87 | 0.35 | |||
| Renal failure‡ | 2.53 | 1.26–5.02 | 0.01 | |||
| Heart disease | 2.12 | 1.04–4.67 | 0.04 | |||
| COPD | 0.99 | 0.43–2.06 | 0.97 | |||
| Malignancy | 1.56 | 0.66–3.33 | 0.29 | |||
‡
renal failure defined as creatinine >2 mg/dL upon admission.
#
Grouped given small numbers in the “Other” and “Hispanic” race categories.
*
Analyzed per year increase.