Table 3.
Cox proportional hazards regression for the development of anemia
| Univariate | Multivariate | |||
|---|---|---|---|---|
| Hazard ratio | p value | Hazard ratio | p value | |
| Age | 1.04 (1.01-1.06) | <0.01 | 1.03 (1.00-1.06) | 0.03 |
| Male sex | 1.02 (0.61-1.69) | 0.95 | 1.07 (0.63-1.84) | 0.80 |
| Diabetes mellitus | 1.65 (1.06-2.55) | 0.03 | 1.43 (0.89-2.30) | 0.14 |
| Anemia at baseline | 1.31 (0.86-2.00) | 0.22 | 0.67 (0.40-1.11) | 0.12 |
| Resistive index (per 0.05) | 1.30 (1.16-1.46) | <0.01 | 1.18 (1.02-1.37) | 0.03 |
| Estimated GFR | 0.99 (0.97-1.00) | 0.11 | 1.00 (0.98-1.01) | 0.57 |
| Qualitative urine protein | 2.21 (1.44-3.39) | <0.01 | 1.80 (1.08-3.01) | 0.03 |
GFR, glomerular filtration rate.