Background
The Michigan Hand Questionnaire (MHQ) is one of the most widely utilized, hand-specific surveys that measures health status relevant to patients with acute and chronic hand disorders. However, item redundancy exists in the original version, and an abbreviated survey could minimize responder burden and offer broader applicability.
Methods
Patients (n=422) with 4 specific hand conditions completed the MHQ at two time periods: rheumatoid arthritis (RA) (n=162), thumb carpometacarpal osteoarthritis (CMC) (n=31), carpal tunnel syndrome (CTS) (n=97), and distal radius fracture (DRF) (n=132). Correlation analysis identified 2 items from each of 6 domains (function, activities of daily living, work, pain, aesthetics, and satisfaction). A brief-MHQ score was calculated as the sum of the responses to the 12 items. Psychometric analysis was performed to describe the reliability, validity, and responsiveness of the brief MHQ.
Results
The brief-MHQ includes 12 items that were highly correlated with the summary MHQ score (r= 0.99, p<0.001). The brief MHQ scores were highly correlated between the two time periods (r =0.78, p<0.001), and by disease type. Responsiveness of the brief MHQ was high for all diseases, and similar to that of the original MHQ.
Conclusions
The 12-item brief MHQ is an efficient and versatile outcomes instrument specific to hand disability that retains the psychometric properties of the original MHQ. The brief MHQ is an important tool to measure patient outcomes and the quality of care in hand surgery.