Table 1.
Baseline characteristics of study participants
| Characteristic | Value |
|---|---|
| Age (yr) | 68.8±10.7 |
| Sex, n (%) | |
| Male | 1081 (98.4) |
| Female | 18 (1.6) |
| Race, n (%) | |
| White | 622 (56.6) |
| Black | 290 (26.4) |
| Other | 187 (17.0) |
| Cause of kidney disease, n (%) | |
| Diabetes | 454 (41.3) |
| Hypertension | 351 (31.9) |
| GN | 52 (4.7) |
| Obstructive nephropathy | 23 (2.1) |
| Polycystic kidney disease | 22 (2.0) |
| Tubulointerstitial disease | 6 (0.5) |
| Vascular disease | 27 (2.5) |
| Other | 81 (7.4) |
| Unknown | 83 (7.6) |
| History of diabetes, n (%) | 604 (55.0) |
| History of hypertension, n (%) | 1060 (96.5) |
| History of cardiovascular disease, n (%) | 625 (56.9) |
| Current smoker, n (%) | 201 (18.3) |
| Body mass index (kg/m2) | 28.0±4.8 |
| Systolic BP (mmHg) | 143.4±23.1 |
| Diastolic BP (mmHg) | 73.0±12.6 |
| eGFR (ml/min per 1.73 m2) | 18.2±6.4 |
| Serum albumin (g/dl) | 4.1±0.5 |
| Hemoglobin (g/dl) | 11.9±1.7 |
| LDL cholesterol (mg/dl) | 94.8±32.8 |
| HDL cholesterol (mg/dl) | 42.6±14.8 |
| Serum calcium (mg/dl) | 8.9±0.7 |
| Serum phosphorus (mg/dl) | 4.4±1.3 |
Values expressed with a plus/minus sign are mean±SD.