Table 2:
Logistic models predicting UTI within 8 weeks post-procedure by duration of catheterization; presence or microbes detected from qPCR or Community State Types (CST) of catheter microbes, treatment with cranberry pills, and log-transform of self-catheterization count as independent variables. 127 urinary catheters placed for <3 days collected from women undergoing elective gynecologic surgery 2011 – 2013.
| Unadjusted OR (95%CI) |
Including microbes detected using qPCR Adjusted OR (95% CI) |
p-value (Walds t-test) |
Including CSTs Adjusted OR (95% CI) |
p-value (Walds t-test) |
|
|---|---|---|---|---|---|
| Catheter Duration (<14 hours) | 1.0 (Reference) | 1.0 (Reference) | |||
| ≥ 14 hours, ≤ 30 hours | 3.69 (1.03,13.28) | 2.28 (0.51,10.17) | 0.28 | 2.19 (0.52,9.27) | 0.29 |
| Greater than 30 hours | 3.33 (0.23,49.09) | 2.57 (0.1,65.99) | 0.57 | 3.5 (0.17,71.75) | 0.43 |
| E. coli: Positive | 1.16 (0.54,2.49) | 0.61 (0.24,1.57) | 0.31 | -- | -- |
| Lactic Acid Bacteria: Positive | 1.96 (0.67,5.68) | 2.92 (0.79,10.74) | 0.11 | -- | -- |
| Enterococcus: Positive | 2678052.48 (0,Inf) | 7329278.77 (0,Inf) | 0.99 | -- | -- |
| C. albicans: Positive | 0.58 (0.18,1.89) | 0.81 (0.21,3.15) | 0.76 | -- | -- |
| Community State Types (Reference CST 1) | -- | -- | |||
| CST 2 | 1.01 (0.43,2.36) | -- | -- | 0.89 (0.31,2.51) | 0.82 |
| CST 3 | 1.01 (0.34,3.00) | -- | -- | 0.52 (0.14,1.89) | 0.32 |
| Treatment (Cranberry vs placebo) | 0.48 (0.22,1.04) | 0.61 (0.24,1.53) | 0.29 | 0.56(0.23,1.37) | 0.22 |
| Log frequency self-catheterization* | 1.91 (1.44,2.54) | 1.99 (1.46,2.73) | <0.001 | 2.00 (1.46,2.73) | <0.001 |
| Indwelling catheter | 3.11 (1066,14.61) | 10.45 (1.38,78.84) | 0.023 | 4.43 (0.82,23.91) | 0.083 |
*
Transformed using the natural log because variable was highly skewed.