Table 2.
Associations between bacteremia and distance to the nephrologist practice
| Rate ratio of bacteremic infection | Rate ratio of CRBSI | |
|---|---|---|
| N | 1131 | 1131 |
| Events | 264 | 164 |
| Distance to nephrologist, km | ||
| < 50 | 1.00 | 1.00 |
| 50–99 | 1.42 (0.83, 2.45) | 1.63 (0.91, 2.91) |
| ≥ 100 | 0.79 (0.45, 1.39) | 0.84 (0.44,1.58) |
| P for linear trend | 0.74 | 0.87 |
| Age, y | ||
| 18–49 | 1.00 | 1.00 |
| 50–69 | 0.69 (0.45, 1.05) | 0.66 (0.42,1.04) |
| 70+ | 0.60 (0.38, 0.95) | 0.57 (0.35, 0.94) |
| Morbidities | ||
| Substance misusea | 2.32 (1.40, 3.83) | – |
| Liver diseaseb | 1.98 (1.20, 3.27) | 2.11 (1.15, 3.86) |
| Peripheral vascular disease | 1.70 (1.11, 2.59) | – |
| Hypertension | 1.37 (1.04, 1.82) | – |
CRBSI catheter-related blood stream infection
Fit using forwards stepwise selection using all variables listed in Table 1 and forcing age and distance to closest nephrology practice to remain in the model
aSubstances include alcohol, cocaine, ecstasy, intravenous drugs, marijuana, off-prescription drugs, and smoking
Liver disease includes alpha-1 antitrypsin disease of the liver, cirrhosis due to any cause, fatty
bLiver disease if confirmed on liver biopsy (ever), glycogen storage diseases, hemochromatosis, primary biliary cirrhosis, primary sclerosing cholangitis, veno-occlusive liver disease, and Wilson’s disease