Table 5.
Poisson regression: Crude and adjusted risks for hospitalization for each covariate, including mean serum albumin <3.5/3.2 versus ≥3.5/3.2 and <4.0/3/7 versus ≥4.0/3.7 g/dl, n = 675
| Covariate | HR, Crude (95% CI) | HR, Adjusted (95% CI) |
|---|---|---|
| Serum albumin ≥3.5/3.2 and <4.0/3/7 versus <3.5/3.2 g/dl | 0.78 (0.60 to 0.99)a | 0.85 (0.65 to 1.12) |
| Serum albumin ≥4.0/3.7 versus <3.5/3.2 g/dl | 0.71 (0.55 to 0.90)a | 0.84 (0.64 to 1.11) |
| Age (yr) | 1.02 (0.97 to 1.07) | 1.05 (0.99 to 1.11) |
| White race | 0.89 (0.74 to 1.06) | 0.95 (0.79 to 1.15) |
| Male gender | 0.97 (0.81 to 1.16) | 1.04 (0.84 to 1.27) |
| Hispanic ethnicity | 0.61 (0.50 to 0.75)a | 0.65 (0.52 to 0.80)a |
| Hispanic Mexican versus non-Hispanic | 0.74 (0.59 to 0.93)a | 0.75 (0.60 to 0.93)a |
| Nephrotic syndrome/FSGS | 0.89 (0.72 to 1.11) | 0.89 (0.70 to 1.13) |
| HD access type: catheter | 1.12 (0.95 to 1.32) | 1.07 (0.87 to 1.32) |
| Mean hemoglobin <11 versus ≥11 g/dl | 0.92 (0.88 to 0.97)a | 0.95 (0.90 to 1.01) |
| Mean serum ferritin | ||
| 100 to 500 ng/ml | 1.00 (1.00 to 1.00) | 1.00 (1.00 to 1.00) |
| <100 ng/ml | 1.00 (1.00 to 1.00) | 1.00 (1.00 to 1.00) |
| >500 ng/ml | 1.00 (1.00 to 1.00) | 1.00 (1.00 to 1.00) |
| Mean BMI-for-age percentile | ||
| 5th through 85th | 0.99 (0.95 to 1.03) | 0.99 (0.95 to 0.99) |
| <5th | 0.99 (0.95 to 1.03) | 0.99 (0.95 to 0.99) |
| ≥85th through 95th | 0.99 (0.95 to 1.03) | 0.99 (0.95 to 0.99) |
| ≥95th | 0.99 (0.95 to 1.03) | 0.99 (0.95 to 0.99) |
| Mean spKt/V <1.2 versus ≥1.2 | 1.06 (0.87 to 1.30) | 0.95 (0.66 to 1.35) |
| Mean dialysis vintage <180 versus ≥180 d | 1.00 (0.99 to 1.00) | 1.00 (0.99 to 1.00) |
| Mean ESRD duration (yr) | ||
| <2 | 0.99 (0.99 to 1.00) | 0.99 (0.99 to 1.00) |
| 2 to 5 | 0.99 (0.99 to 1.00) | 0.99 (0.99 to 1.00) |
| ≥5 | 0.99 (0.99 to 1.00) | 0.99 (0.99 to 1.00) |
| PD exposure | 1.97 (1.50 to 2.60)a | 2.01 (1.39 to 2.90)a |
| Received transplant during study | 1.00 (0.85 to 1.19) | 1.14 (0.94 to 1.37) |
a
P < 0.05.