Table 1.
Characteristics of REGARDS participants and associations between traits and level of kidney function
| All | GFR, ml/min/1.73 m2 |
|||||
|---|---|---|---|---|---|---|
| >90 | 60-89 | 45-59 | 30–44 | 15-29 | ||
| Age, mean ± SD | 65.3 ± 9.4 | 60.7 ± 7.7 | 68.1 ± 8.9 | 72.4 ± 8.7 | 74.1 ± 8.6 | 70.8 ± 9.5 |
| n (%) | % subjects within GFR strata with trait | |||||
| Female∗ | 15,819 (54.7) | 58.6 | 50.7 | 55.3 | 56.5 | 48.7 |
| Black∗ | 11,793 (40.7) | 48.7 | 32.6 | 39.0 | 43.0 | 57.9 |
| Smokes∗ | 4,195 (14.6) | 18.8 | 11.3 | 9.95 | 11.9 | 12.4 |
| Daily ETOH∗ | 1,974 (6.7) | 7.5 | 7.1 | 4.9 | 2.8 | 5.1 |
| HBP∗ | 16,648 (58.3) | 52.67 | 58.5 | 78.1 | 83.8 | 87.2 |
| Diabetes∗ | 6,002 (21.2) | 21.0 | 18.1 | 29.5 | 40.7 | 56.0 |
| Dyslipidemia∗ | 16,798 (58.6) | 53.8 | 60.4 | 69.2 | 72.9 | 74.2 |
| Cerebrovascular disease∗ | 2,849 (9.9) | 7.2 | 10.0 | 18.4 | 23.1 | 25.5 |
| Coronary heart disease∗ | 6,424 (22.8) | 17.5 | 24.6 | 34.3 | 37.5 | 47.2 |
| History of cancer∗ | 2,517 (14.5) | 10.8 | 16.2 | 20.6 | 23.7 | 16.4 |
| Less than high school education∗ | 3,577 (12.4) | 11.7 | 11.4 | 17.8 | 21.0 | 24.2 |
| Low income∗ | 2,791 (11.0) | 11.0 | 9.8 | 14.3 | 17.1 | 24.9 |
| Obese∗ | 10,964 (38.1) | 41.7 | 34.2 | 38.6 | 40.0 | 43.4 |
| Albumin <3.5 g∗ | 616 (2.9) | 2.4 | 2.5 | 5.3 | 7.7 | 15.9 |
| Hemoglobin, mean ± SD∗ | 13.7 ± 1.4 | 13.7 ± 1.4 | 13.8 ± 1.4 | 13.1 ± 1.5 | 12.6 ± 1.6 | 11.9 ± 1.6 |
∗
p < 0.0001 for equality of percents across levels of kidney function.