Table 2.
Baseline Characteristics by UACR Category
| Characteristic | UACR <30 mg/g (N = 294) |
UACR 30-<300 mg/g (N = 150) | UACR ≥300 mg/g (N = 118) |
|---|---|---|---|
| SPPB, mean (SD) | 10.0 (2.3) | 8.9 (2.6) | 9.0 (2.7) |
| Gait speed (m/s), mean (SD) | 0.99 (0.25) | 0.90 (0.28) | 0.93 (0.29) |
| eGFR (mL/min/1.73 m2), mean (SD) | 58.3 (23.9) | 41.6 (20.6) | 30.9 (15.2) |
| UACR (mg/g), mean (SD) | 4.5 (8.6) | 104.8 (70.6) | 1,603.4 (1,530.1) |
| Age (years), mean (SD) | 69.9 (9.6) | 70.5 (9.8) | 66.1 (9.7) |
| Female sex, N (%) | 179 (60.9) | 61 (40.7) | 40 (33.9) |
| Race, N (%) | |||
| White | 250 (85.0) | 114 (76.0) | 85 (72.0) |
| Black | 30 (10.2) | 29 (19.3) | 27 (22.9) |
| Other | 14 (4.8) | 7 (4.7) | 6 (5.1) |
| Education (years), mean (SD) | 14.7 (2.7) | 14.1 (2.6) | 13.7 (2.8) |
| BMI (kg/m2), mean (SD) | 30.9 (7.2) | 31.2 (7.4) | 32.7 (7.0) |
| DM, N (%) | 107 (36.4) | 85 (56.7) | 82 (69.5) |
| Moderate to severe CI, N (%) | 68 (23.1) | 51 (34.0) | 40 (33.9) |
| CHF, N (%) | 23 (7.8) | 32 (21.3) | 24 (20.3) |
| Hemoglobin (g/dL), mean (SD) | 13.4 (1.4) | 12.8 (1.8) | 12.2 (1.8) |
| Systolic BP (mm Hg), mean (SD) | 128 (17.2) | 134 (16.9) | 141 (20.1) |
Abbreviations: BMI, body mass index; BP, blood pressure; CHF, congestive heart failure; CI, cognitive impairment; DM, diabetes mellitus; eGFR, estimated glomerular filtration rate using creatinine; SD, standard deviation; SPPB, short physical performance battery; UACR, urine albumin to creatinine ratio.