Table 1.

Baseline characteristics of a population-based CKD cohort and persons with potential heart failure events sampled for validation

CharacteristicFull CohortParticipants with Potential HF EventsSampled for Validationa
Patients, n15,1411864313
Mean age (SD), yr69.4 (11.7)76 (9.0)76.1 (9.1)
Women, n (%)9484 (63)1043 (56)179 (57)
Race/ethnicity, n (%)
 White13,597 (90)1715 (92)287 (92)
 Black443 (3)58 (3)13 (4)
 Asian716 (5)52 (3)8 (3)
 Other385 (3)39 (2)5 (2)
 Hispanic484 (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 m249.0 (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), yr5.7 (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.