Table 3.
Multivariable Analysis of Factors Associated With Development of CAUTI, From a Study of Effects of a Simulation-Based Curriculum on CAUTI Rates, Northwestern University Feinberg School of Medicine, 2011–2016a
| Factor | Odds ratio | 95% Wald confidence interval | P value |
|---|---|---|---|
| Simulation training | 0.48 | 0.316, 0.73 | < .001 |
| Patient gender | |||
| Male | 1 (reference) | — | — |
| Female | 1.596 | 1.067, 2.388 | .02 |
| Patient age | |||
| 18–30 | 1 (reference) | — | — |
| 31–40 | 0.581 | 0.193, 1.756 | .34 |
| 41–50 | 0.76 | 0.289, 1.998 | .58 |
| 51–60 | 0.717 | 0.281, 1.828 | .49 |
| 61–70 | 1.047 | 0.429, 2.553 | .92 |
| 71–80 | 0.796 | 0.309, 2.053 | .64 |
| 80+ | 0.962 | 0.333, 2.776 | .94 |
| BMI | |||
| < 18 | 1.193 | 0.357, 3.987 | .77 |
| 18.1–24.9 | 1 (reference) | — | — |
| 25–30.9 | 0.823 | 0.512, 1.324 | .42 |
| 31–34.9 | 1.026 | 0.573, 1.838 | .93 |
| 35–39.9 | 1.06 | 0.552, 2.032 | .86 |
| > 40 | 1.227 | 0.642, 2.346 | .54 |
| Operative case type | |||
| General surgery | 1 (reference) | — | — |
| Cardiac surgery | 0.493 | 0.183, 1.33 | .16 |
| Gynecology | 0.579 | 0.276, 1.216 | .15 |
| Otolaryngology | 0.419 | 0.055, 3.18 | .40 |
| Neurosurgery | 0.965 | 0.468, 1.991 | .92 |
| Orthopedics | 0.488 | 0.217, 1.095 | .08 |
| Plastic surgery | 0.826 | 0.282, 2.422 | .73 |
| Spine surgery | 0.603 | 0.272, 1.335 | .21 |
| Thoracic surgery | 0.169 | 0.023, 1.262 | .08 |
| Abdominal transplant surgery | 0.327 | 0.129, 0.828 | .02 |
| Urology | 0.545 | 0.252, 1.179 | .12 |
| Vascular surgery | 1.802 | 0.911, 3.564 | .09 |
| Operative case duration | |||
| < 1 hour | 1 (reference) | — | — |
| 1–2 hours | 0.908 | 0.388, 2.123 | .82 |
| 2–3 hours | 1.165 | 0.509, 2.666 | .72 |
| 3–4 hours | 1.231 | 0.53, 2.858 | .63 |
| 4–5 hours | 1.275 | 0.517, 3.144 | .60 |
| 5–6 hours | 1.215 | 0.429, 3.437 | .71 |
| 6–7 hours | 2.813 | 1.088, 7.272 | .03 |
| 7–8 hours | 4.004 | 1.503, 10.664 | .006 |
| > 8 hours | 2.639 | 1.015, 6.862 | .047 |
| ASA class | |||
| Class 1 | 1 (reference) | — | — |
| Class 2 | 1.003 | 0.516, 1.951 | .99 |
| Class 3 | 4.788 | 2.838, 8.078 | < .001 |
| Class 4 and 5 | 5.282 | 2.463, 11.325 | < .001 |
| Provider inserting IUC | |||
| Nurse | 1 (reference) | — | — |
| Medical student | 0.411 | 0.122, 1.382 | .15 |
| Attending physician | 2.684 | 1.187, 6.068 | .02 |
| Resident/fellow physician | 1.681 | 0.816, 3.463 | .16 |
| Advanced practice clinician | 0.732 | 0.225, 2.388 | .61 |
| Time IUC remained | 1.003 | 1.002, 1.003 | < .001 |
Abbreviations: CAUTI, catheter-associated urinary tract infection; BMI, body mass index; ASA, American Society of Anesthesiologists; IUC, indwelling urinary catheter.
a
Significance calculated with the Wald test.