Our primary outcome was the measure ’s minimal important difference ( MID ) .
Conclusions In this focused evidence review , the most evidence on key psychometric properties in chronic musculoskeletal pain population s was found for the ODI , RMDQ , SF-36 BPS , NRS , and VAS .
Background Developing successful interventions for chronic musculoskeletal pain requires valid , responsive , and reliable outcome measures .
The Minneapolis VA Evidence -based Synthesis Program completed a focused evidence review on key psychometric properties of 17 self-report measures of pain severity and pain-related functional impairment suitable for clinical research on chronic musculoskeletal pain .
Patient-Reported Outcomes Measurement Information System (PROMIS) instruments among individuals with symptomatic knee osteoarthritis: a cross-sectional study of floor/ceiling effects and construct validity
Background The psychometric properties of Patient Reported Outcomes Measurement Information System ( PROMIS ) instruments have been explored in a number of general and clinical sample s. No study , however , has evaluated the psychometric function of these measures in individuals with symptomatic knee osteoarthritis ( KOA ) . The aim of this project was to evaluate the construct ( structural ) validity and floor/ceiling effects of four PROMIS measures in this population . Methods We conducted a secondary analysis of baseline data from a r and omized trial comparing Tai Chi and physical therapy . Participants completed four PROMIS static short-form instruments ( i.e. , Anxiety , Depression , Physical Function , and Pain Interference ) as well as six well-vali date d ( legacy ) measures that assess pain , function , and psychological health . We calculated descriptive statistics and percentages of participants scoring the minimum ( floor ) and maximum ( ceiling ) possible scores for PROMIS and legacy measures . We also estimated the association between PROMIS scores and scores on legacy measures using Spearman ’s rank correlations coefficients . Results Data from 204 participants were analyzed . Mean age of the sample was 60 years ; 70 % were female .  The PROMIS Anxiety and Depression had floor effects with 17 and 24 % of participants scoring the minimum , respectively . PROMIS Anxiety and Depression scores had strongest associations with general mental health , including stress ( Perceived Stress Scale , r ≥ 0.65 ) and depression ( Beck Depression Index-II , r = 0.70 ) . PROMIS Pain Interference scores correlated most strongly with measures of whole body pain ( Short-Form 36 Bodily Pain , r = −0.73 ) and physical health ( Short-Form 36 Physical-Component Summary , r = −0.73 ) ; their correlations were lower with other legacy measures , including with the WOMAC knee-specific pain ( r = 0.47 ) . PROMIS Physical Function scores had stronger associations with scores on the Short-Form 36 Physical Function ( r = 0.79 ) than with scores on other legacy measures . Conclusion The four PROMIS static-short forms performed well among individuals with symptomatic knee osteoarthritis as evidence d in correlations with legacy measures . PROMIS Anxiety and Depression target general mental health ( e.g. , stress , depression ) , and PROMIS Pain Interference and Physical Function static-short forms target whole-body outcomes among participants with symptomatic knee osteoarthritis . Floor effects in the PROMIS Anxiety and Depression scores should be considered if needing to distinguish among patients with very low levels of these outcomes .Trial registration Clinical trials.gov NCT01258985 . Registered 10 December
Our primary outcome was the measure ’s minimal important difference ( MID ) .
Conclusions In this focused evidence review , the most evidence on key psychometric properties in chronic musculoskeletal pain population s was found for the ODI , RMDQ , SF-36 BPS , NRS , and VAS .
Background Developing successful interventions for chronic musculoskeletal pain requires valid , responsive , and reliable outcome measures .
The Minneapolis VA Evidence -based Synthesis Program completed a focused evidence review on key psychometric properties of 17 self-report measures of pain severity and pain-related functional impairment suitable for clinical research on chronic musculoskeletal pain .