Table 1.
Baseline characteristics of a population-based CKD cohort and persons with potential heart failure events sampled for validation
| Characteristic | Full Cohort | Participants with Potential HF Events | Sampled for Validationa |
|---|---|---|---|
| Patients, n | 15,141 | 1864 | 313 |
| Mean age (SD), yr | 69.4 (11.7) | 76 (9.0) | 76.1 (9.1) |
| Women, n (%) | 9484 (63) | 1043 (56) | 179 (57) |
| Race/ethnicity, n (%) | |||
| White | 13,597 (90) | 1715 (92) | 287 (92) |
| Black | 443 (3) | 58 (3) | 13 (4) |
| Asian | 716 (5) | 52 (3) | 8 (3) |
| Other | 385 (3) | 39 (2) | 5 (2) |
| Hispanic | 484 (3) | 55 (3) | 13 (4) |
| Prior CHF, n (%) | 1433 (10) | 682 (37) | 126 (40) |
| Prior MI, n (%) | 377 (3) | 113 (6) | 16 (5) |
| Prior stroke, n (%) | 292 (2) | 53 (3) | 5 (2) |
| Mean eGFR (SD), ml/min per 1.73 m2 | 49.0 (8.5) | 45.0 (9.7) | 45.0 (9.9) |
| CKD stage, n (%) | 11,128 (74) | 1015 (54) | 177 (57) |
| 3a (eGFR 45–59 ml/min per 1.73 m2) | |||
| 3b (eGFR 30–44 m/min per 1.73 m2) | 3511 (23) | 691 (37) | 105 (34) |
| 4 (eGFR 20–29 ml/min per 1.73 m2) | 502 (3) | 158 (9) | 31 (10) |
| Mean duration GHC enrollment (SD), yr | 5.7 (2.4) | 5.8 (23) | 4.0 (1.8) |
HF, heart failure; CHF, congestive heart failure; MI, myocardial infarction; GHC, Group Health Cooperative.
a
Of 1864 participants in the full cohort with a potential HF event during follow-up, 313 were randomly sampled for validation.