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The Edmonton Obesity Staging Classification

Learn more about the Edmonton obesity staging system.

Watch the short summary video of the EOSS (UoM The EOSS video)

It is essential to recognise that anthropometric classifications provide an indication of OBESITY CLASS, that is the size of the patient. However excessive body weight or body mass index does not necessarily determine poor health outcomes for individuals or directly explain mortality or morbidity rates.3 A more clinically relevant measure is OBESITY STAGE which is a measure of how healthy an individual may be.

The Edmonton Obesity Staging System (EOSS)

The EOSS is a five-stage classification system that considers metabolic, physical, and psychological factors associated with obesity and how these influence the patient, their overall health, and treatment options.4

EOSS Obesity Stage (0-4) Stage 0: No apparent risk factors, Stage 1: Preclinical risk factors, Stage 2: Established co-morbidities, Stage 3: End organ damage, Stage 4: End stage. A measure of the health status of an individual who is classified as obese

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EduWeight: Weight Management for Adult Patients with Chronic Disease

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