The Influence of Psychological Factors on the Michigan Hand Questionnaire.

Psychosocial factors help account for the gap between impairment and disability. This study examines the relationship between the Michigan Hand Questionnaire (MHQ) and commonly used psychological measures in patients with upper extremity illness. A cohort of 135 new or follow-up patients presenting to an urban academic hospital-based hand surgeon were invited to complete a web-based version of the MHQ, Abbreviated Pain Catastrophizing Scale (PCS), and two Patient-Reported Outcomes Measurement Information System (PROMIS)-based questionnaires: Pain Interference and Depression.