Table 6.
Summary of Zero-Inflated Negative Binomial (ZINB) Regression Predicting Catheter Associated Urinary Tract Infections (CAUTIs) and Blockages.
| Variable | Catheter Associated Urinary Tract Infection (CAUTI; n = 193) | Blockage (n = 192) | ||||||
|---|---|---|---|---|---|---|---|---|
| B | SE B | Z | p | B | SE B | Z | p | |
| Logistic portion of model (Yes/No) | ||||||||
| Intercept | .266 | 1.701 | .157 | .876 | 1.348 | 3.190 | .423 | .673 |
| Gender | −1.228 | 1.207 | −1.018 | .309 | −2.143 | 1.659 | −1.292 | .196 |
| Age | .013 | .034 | .366 | .714 | .012 | .028 | .434 | .665 |
| Eating Problem | −.398 | 1.747 | −.228 | .820 | 1.814 | 1.471 | 1.233 | .218 |
| Urinary Sediment Amount | −.310 | .836 | −.371 | .710 | −1.605 | .720 | −2.230 | .026 |
| Count of Catheter Leakages | .007 | .005 | 1.286 | .198 | .014 | .007 | 2.144 | .032 |
| Count of Bladder Spasms | −.003 | .006 | −.563 | .573 | .006 | .005 | 1.253 | .210 |
| Counts portion of model (frequencies of events) | ||||||||
| Intercept | .323 | .555 | .582 | .560 | .505 | 1.294 | .390 | .697 |
| Gender | −.224 | .189 | −1.183 | .237 | −1.486 | .374 | −3.974 | < .001 |
| Age | .001 | .010 | .107 | .915 | .006 | .011 | .516 | .606 |
| Eating Problem | .220 | .328 | .671 | .502 | 1.013 | .525 | 1.928 | .054 |
| Urinary Sediment Amount | .391 | .204 | 1.916 | .055 | 1.019 | .279 | 3.657 | < .001 |
| Catheter Leakages | .002 | .001 | 1.790 | .074 | .016 | .005 | 3.136 | .002 |
| Bladder Spasms | .003 | .001 | 2.017 | .044 | .003 | .002 | 1.469 | .142 |
| Residual Dispersion | .314 | .297 | 1.057 | .290 | 2.426 | .591 | 4.105 | < .001 |
Note: Gender (1 = male; 2 = female); Eating Problem (0 = no; 1 = yes).