Our review provides anchor-based MID estimates , as well as a rating of their credibility , for PROMs for patients with shoulder conditions .
The MID estimates inform the interpretation for a linked systematic review and guideline addressing subacromial decompression surgery for shoulder pain , and could also prove useful for authors addressing other interventions for shoulder problems .
OBJECTIVES To identify credible anchor-based minimal important differences ( MIDs ) for  patient-reported outcome measures  ( PROMs ) relevant to a BMJ Rapid Recommendations addressing subacromial decompression surgery for shoulder pain .
An empirical evaluation of the SF-12, SF-6D, EQ-5D and Michigan Hand Outcome Questionnaire in patients with rheumatoid arthritis of the hand
Background The aim of this study was to assess the psychometric properties , namely acceptability , validity , reliability , interpretability and responsiveness of the EuroQol EQ-5D ( EQ-5D visual analogue ( VAS ) and EQ-5D ( utility ) ) , Short Form 12 Dimensions ( SF-12 ) , SF-6D and Michigan H and Outcome Question naire ( MHQ ) in patients with rheumatoid arthritis ( RA ) of the h and . Methods The empirical investigation was based upon data from a r and omised controlled trial of 488 adults with rheumatoid arthritis who had pain and dysfunction of the h and s and /or wrists . Participants completed the EQ-5D , SF-12 and MHQ at baseline and at 4 and 12 months follow up . Acceptability was measured using completion rates over time ; construct validity using the “ known groups ” approach , based on pain troublesomeness ; convergent validity using spearman ’s rho correlation ( ρ ) ; reliability using internal consistency ( Cronbach ’s alpha ) ; interpretability using minimal important differences ( MID ) ; and responsiveness using effect sizes and st and ardised response means ( SRM ) stratified by level of self-rated improvement in h and and wrist function or level of self-rated benefit and satisfaction from trial treatments . Results At baseline , the study population had a mean age of 62.4 years , a mean MHQ score of 52.1 and included 76 % women . The EQ-5D ( utility ) had the highest completion rates across time points . All instruments discriminated between pre-specified groups based on pain troublesomeness . Convergent validity analysis indicated that the MHQ score correlated strongly with the EQ-5D ( ρ = 0.65 ) and SF-6D ( ρ = 0.63 ) utility scores . The MHQ was most responsive at detecting change in indicators of RA pain severity between baseline and 4 months , whilst minimal important differences varied considerably across PROMs . Conclusions The instruments evaluated in this study displayed varying psychometric properties in the context of RA of the h and . The selection of a preferred instrument in evaluative studies should ultimately depend on the relative importance placed on individual psychometric properties and the importance placed on generation of health utilities for economic evaluation purpose
Our review provides anchor-based MID estimates , as well as a rating of their credibility , for PROMs for patients with shoulder conditions .
The MID estimates inform the interpretation for a linked systematic review and guideline addressing subacromial decompression surgery for shoulder pain , and could also prove useful for authors addressing other interventions for shoulder problems .
OBJECTIVES To identify credible anchor-based minimal important differences ( MIDs ) for  patient-reported outcome measures  ( PROMs ) relevant to a BMJ Rapid Recommendations addressing subacromial decompression surgery for shoulder pain .