Table 1 |.
Participant characteristics
| Study population | AASK (primary) | ARIC Study (replication) |
|---|---|---|
| N | 619 | 818 |
| Age, yr | 55 ± 11 | 75 ± 5 |
| Women | 232 (37.5) | 532 (65) |
| BMI, kg/m2 | 30 ± 7 | 30 ± 7 |
| Current smoker | 182 (29) | 49 (6) |
| Heart disease | 336 (54) | 84 (10) |
| GFR,a ml/min per 1.73 m2 | 45 ± 13 | 67 ± 21 |
| Urine protein-to-creatinine ratio, mg/g | 331 (29–382) | 11 (6–31)a |
| Number with GFR,b <60 ml/min per 1.73 m2 | 521 (84) | 219 (27) |
AASK, African American Study of Kidney Disease and Hypertension; ARIC, Atherosclerosis Risk in Communities; BMI, body mass index; GFR, glomerular filtration rate. Data are expressed as mean ± SD, median (interquartile range), or n (%).
a
The median urine albumin-to-creatinine ratio is reported for the ARIC Study.
b
GFR is measured GFR in AASK and estimated GFR in the ARIC Study (using creatinine and cystatin C).