Table 3.

Independent risk factors for postop UTI as defined by multivariate logistic regression.

Variable	OR (95% CI)
Sex (female)∗	2.1 (1.6–2.7)
Diabetes
Non-insulin dependent	1.2 (0.9–1.7)
Insulin dependent	1.6 (0.9–2.5)
Smoker	1.0 (0.6–1.5)
Dyspnea	0.9 (0.6–1.4)
Functional status (dependent)	0.9 (0.5–1.6)
COPD	1.2 (0.7–2.0)
Hypertension	0.9 (0.7–1.2)
Steroid use∗	2.0 (1.2–3.2)
Bleeding disorder	1.3 (0.8–2.2)
Age
60–69∗	1.5 (1.0–2.1)
70–79∗	2.0 (1.4–2.9)
≥80∗	2.3 (1.5–3.6)
History of PCI/cardiac surgery	1.3 (0.9–1.8)
History of TIA/stroke	1.1 (0.7–1.7)
ASA classes 3–5∗	1.5 (1.2–1.9)
Preop Cr > 1.35∗	1.8 (1.3–2.6)
Preop INR > 2	0.6 (0.2–2.0)
Operation time > mean + 1 SD (130 mins.)∗	1.8 (1.3–2.4)
Anesthesia type
Spinal	0.9 (0.7–1.2)
Other	0.7 (0.4–1.3)

∗ denotes significance.