Table 2.
Risk factors for functional catheter problem and catheter failure in COX models
| Variables | Univariate model | Multivariate model | ||
|---|---|---|---|---|
| HR (95%CI) | P value | HR (95%CI) | P value | |
| Functional catheter problem | ||||
| Age (every 5 years increase) | 0.86 (0.81–0.91) | < 0.001 | 0.86 (0.81–0.92) | < 0.001 |
| Sex (Male) | 1.08 (0.79–1.49) | 0.623 | 1.01 (0.72–1.44) | 0.942 |
| BMI (kg/m2) | 0.94 (0.89–0.99) | 0.024 | 0.97 (0.92–1.03) | 0.266 |
| Serum creatinine (mg/dL) | 1.04 (1.00–1.08) | 0.023 | 1.03 (0.99–1.06) | 0.934 |
| Hemoglobin (g/dL) | 0.92 (0.84–1.01) | 0.068 | 0.96 (0.88–1.03) | 0.346 |
| BSA (m2) | 0.66 (0.25–1.77) | 0.410 | – | – |
| Diabetic nephropathy | 0.83 (0.55–1.24) | 0.359 | – | – |
| History of abdominal surgery | 1.38 (0.81–2.35) | 0.235 | – | – |
| eGFR (ml/min/1.73m2) | 0.96 (0.89–1.03) | 0.227 | – | – |
| Serum albumin (g/dL) | 0.89 (0.65–1.23) | 0.482 | – | – |
| Catheter failure | ||||
| Age (every 5 years increase) | 0.80 (0.74–0.87) | < 0.001 | 0.81 (0.73–0.89) | < 0.001 |
| Sex (Male) | 1.06 (0.67–1.68) | 0.817 | 1.25 (0.75–2.10) | 0.393 |
| BMI (kg/m2) | 0.91 (0.85–0.98) | 0.017 | 0.94 (0.86–1.03) | 0.164 |
| Serum creatinine (mg/dL) | 1.07 (1.02–1.12) | 0.008 | 1.05 (0.98–1.10) | 0.765 |
| Hemoglobin (g/dL) | 0.90 (0.79–1.03) | 0.133 | 0.92 (0.81–1.04) | 0.364 |
| BSA (m2) | 0.42 (0.10–1.74) | 0.234 | – | – |
| Diabetic nephropathy | 0.83 (0.46–1.48) | 0.517 | – | – |
| History of abdominal surgery | 1.55 (0.75–3.23) | 0.241 | – | – |
| eGFR (ml/min/1.73m2) | 0.96 (0.87–1.07) | 0.468 | – | – |
| Serum albumin (g/dL) | 0.97 (0.61–1.54) | 0.886 | – | – |
Abbreviations: BMI body mass index, BSA body surface area, eGFR estimated glomerular filtration, HR hazard ratio, CI confidence interval