Table 3.
HRs for baseline characteristics of patients with T1D and macroalbuminuria (CKD stages 1 to 3 only) in Cox proportional hazard analysis of time to onset of ESRD
| Baseline Characteristic | Univariate Model |
Multivariate Model |
||||
|---|---|---|---|---|---|---|
| HR | 95% CI | P | HR | 95% CI | P | |
| One-stage increase of CKD | 2.85 | 2.13 to 3.80 | <0.0001 | 2.85 | 2.13 to 3.82 | <0.0001a |
| 1% increase of HbA1c | 1.24 | 1.11 to 1.39 | <0.0002 | 1.32 | 1.17 to 1.48 | <0.0001a |
| Doubling of ACR | 1.82 | 1.54 to 2.16 | <0.0001 | 1.68 | 1.42 to 1.99 | <0.0001a |
| Sex (reference female) | 0.73 | 0.50 to 1.07 | 0.11 | |||
| Age (10-year increase) | 1.05 | 0.82 to 1.34 | 0.70 | |||
| Diabetes duration (10-year increase) | 0.90 | 0.70 to 1.15 | 0.39 | |||
| Systolic blood pressure (10-mmHg increase) | 1.02 | 0.91 to 1.13 | 0.74 | |||
| BMI (1-unit increase) | 0.98 | 0.94 to 1.02 | 0.35 | |||
| Total cholesterol (20-mg/dl increase) | 1.12 | 1.03 to 1.21 | 0.006 | 0.99 | 0.91 to 1.08 | 0.89a |
| HDL cholesterol (10-mg/dl decrease) | 1.04 | 0.92 to 1.17 | 0.58 | |||
| Smoking (reference nonsmokers) | 1.34 | 0.87 to 2.06 | 0.18 | |||
| Statin use (reference not treated) | 1.82 | 1.12 to 2.96 | 0.02 | 1.49 | 0.91 to 2.45 | 0.12a |
The effect of CKD stage was uniform across the three stages tested. The quadratic and cubic terms for continuous variables were not significant. There were no significant interactions between regressors.
aVariable included in the multivariate model.