The Health Assessment Questionnaire Disability Index (HAQ-DI) assesses the following categories: dressing and grooming, arising, eating, walking, hygiene, reach, grip, and common daily activities. Its scale is 0-1 = mild disability; 1-2 = moderate to severe disability; 2+ = greater disability. The studies measured if there was an improvement of ≥0.22 on this scale.

The Health Assessment Questionnaire Disability Index (HAQ-DI) assesses the following categories: dressing and grooming, arising, eating, walking, hygiene, reach, grip, and common daily activities. Its scale is 0-1 = mild disability; 1-2 = moderate to severe disability; 2+ = greater disability. The studies measured if there was an improvement of ≥0.22 on this scale.