The Four-Stage CKM Staging System (0–4) Staging youths and adults to prevent progression and tailor therapy to risk
Keywords:
CKM syndrome, staging system, cardiovascular disease, chronic kidney disease, obesity, prediabetes, metabolic risk factors, PREVENT equations, risk stratification, youth prevention, lifestyle intervention, regressionAbstract
AbstractThe 2026 cardiovascular–kidney–metabolic (CKM) guideline formalizes a four-stage staging system designed to support earlier prevention and individualized treatment in both youths and adults. Stage 0 represents absence of CKM risk factors, Stage 1 includes overweight or obesity and/or prediabetes without other metabolic, kidney, or cardiovascular disease, Stage 2 includes one or more metabolic risk factors or established kidney disease without clinical cardiovascular disease, Stage 3 captures asymptomatic cardiovascular disease or very-high-risk CKD or elevated predicted cardiovascular risk, and Stage 4 includes established cardiovascular disease with concurrent CKM risk factors. The staging framework is intended to prevent progression, reduce cardiovascular and kidney complications, and encourage regression through lifestyle intervention and weight loss. By linking treatment decisions to absolute risk and disease stage, the system provides a practical clinical tool for prevention, therapy selection, and population management.

