Table 2.
Baseline characteristics of patients with incident CKD and controls
| Variable | Patients with Incident CKD (n=644) | Controls (n=466) | P Value |
|---|---|---|---|
| Age, yr | 63.1±6.4 | 61.4±6.2 | <0.001 |
| Women (%) | 54.0 | 44.4 | 0.002 |
| Black (%) | 14.6 | 19.1 | 0.05 |
| Hispanic (%) | 5.0 | 4.7 | 0.85 |
| Hypertension (%) | 93.5 | 87.6 | 0.001 |
| Current smoking (%) | 7.6 | 13.5 | 0.001 |
| Body mass index, kg/m2 | 33.1±5.4 | 32.1±5.7 | 0.002 |
| Systolic BP, mmHg | 136.3±17.5 | 134.2±15.6 | 0.04 |
| Diabetes duration, yr | 9 (5–14) | 10 (5–14) | 0.82 |
| Hemoglobin A1C, % | 8.3±1.0 | 8.1±1.0 | 0.06 |
| Creatinine, mg/dl | 0.90±0.2 | 0.84±0.2 | <0.001 |
| eGFR, ml/min per 1.73m2 | 81.2±13.1 | 93.7±24.0 | <0.001 |
| Urine albumin-to-creatinine ratio, mg/g | 9.3 (5.9–15.7) | 8.0 (5.4–12.9) | 0.004 |
| Phosphate, mg/dl | 3.5±0.5 | 3.4±0.5 | 0.03 |
| Fibroblast growth factor 23, pg/ml | 43.5 (34.7–55.1) | 39.8 (31.9–49.5) | <0.001 |
Values are percentages, means±SDs, or medians (interquartile ranges). Serum creatinine and eGFR values are from the month 4 follow-up visit.