Table 4.
Univariate and multivariate analyses between demographics, fistula type, comorbidities, vessel measurements and heparin use, and AVF outcomes.
| Variables | Univariate analyses | Multivariate analyses | ||||
|---|---|---|---|---|---|---|
| RR ratio | 95% CI | P value | RR ratio | 95% CI | P value | |
| Patient age | 1.01 | (0.97, 1.03) | 0.659 | 1.01 | (0.97, 1.05) | 0.455 |
| Gender (male) | 1.74 | (0.60, 5.11) | 0.307 | 2.18 | (0.59, 8.49) | 0.245 |
| Fistula type (RCF) | 1.79 | (0.44, 6.94) | 0.398 | 2.06 | (0.35, 12.77) | 0.420 |
| Fistula type (BCF) | 8.33 | (1.02, 18.36) | 0.080 | 8.82 | (0.89, 21.18) | 0.092 |
| Fistula type (BBF) | 2.66 | (0.44, 1.22) | 0.080 | 2.49 | (0.40, 1.18) | 0.097 |
| Diabetes | 2.99 | (0.66, 4.76) | 0.120 | 2.54 | (0.90, 3.99) | 0.098 |
| Hypertension | 1.63 | (1.09, 4.90)] | 0.440 | 1.88 | (1.54, 4.66) | 0.398 |
| Minimum vein diameter | 1.80 | (1.22, 2.66) | 0.044 | 1.45 | (1.18, 2.27) | 0.038 |
| Maximum vein diameter | 1.51 | (0.82, 2.93) | 0.197 | 1.98 | (0.69, 6.44) | 0.220 |
| Artery diameter | 1.57 | (0.87, 3.10) | 0.016 | 1.15 | (1.01, 3.18) | 0.037 |
| Artery velocity | 1.01 | (0.99, 1.02) | 0.385 | 1.00 | (0.97, 1.02) | 0.985 |
| Intraoperative heparin | 1.35 | (0.66, 1.90) | 0.2100 | 1.11 | (0.54, 1.76) | 0.200 |