Background
The feasibility of using health system data to estimate prevalence of chronic kidney disease (CKD) stages 3-5 was explored.
Study Design
Cohort study.
Setting & Participants
A 5% national random sample of patients from the Veterans Affairs (VA) health care system, enrollees in a managed care plan in Michigan (M-CARE), and participants from the 2005-2006 National Health and Nutrition Examination Survey (NHANES).
Predictor
Observed CKD prevalence estimates in the health system population were calculated as patients with an available outpatient serum creatinine measurement with estimated glomerular filtration rate