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Classification of Global Functional Status in Rheumatoid Arthritis

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Class I

Completely able to perform usual activities of daily living (self-care, vocational, and avocational)

Class II

Able to perform usual self-care and vocational activities, but limited in avocational activities

Class III

Able to perform usual self-care activities, but limited in vocational and avocational activities

Class IV

Limited in ability to perform usual self-care, vocational, and avocational activities

* Usual self-care activities include dressing, feeding, bathing, grooming, and toileting. Avocational (recreational and/or leisure) and vocational (work, school, homemaking) activities are patient-desired and age- and sex-specific.