The SPADI is the most frequently evaluated PROM and its measurement properties seem adequate apart from a lack of information regarding its measurement error and content validity .
Dutch users could use either the SDQ or the SST .
In Tamil , Slovene , Spanish and the Danish language s , the evaluated PROMs were not yet of acceptable validity .
None of these PROMs showed strong positive evidence for all measurement properties .
Objective To critically appraise and compare the measurement properties of self-administered patient-reported outcome measures ( PROMs ) focussing on the shoulder , assessing “ activity limitations . ”
Factor structure and validity of the shoulder pain and disability index in a population-based study of people with shoulder symptoms
Background The Shoulder Pain and Disability Index ( SPADI ) is a self-administered question naire that aims to measure pain and disability associated with shoulder disease . The aim of the present study was to investigate the construct validity and factor structure of the SPADI in a population -based study of patients with self-reported chronic shoulder symptoms . Methods The North West Adelaide Health Study is a representative longitudinal cohort study of people aged 18 years and over . The original sample was r and omly selected and recruited by telephone interview . Overall , 3 206 participants returned to the clinic during the second stage ( 2004 - 2006 ) and were asked to report whether they had pain , aching or stiffness on most days in either of their shoulders . Data was also collected on body mass index and shoulder range of motion ( ROM ) and demographic factors . The SPADI ( numeric rating scale ) was administered to participants with shoulder symptoms . Principal components factor analysis , with varimax rotation of factor loadings , was used to assess subscale structure of SPADI . Correlations between the SPADI , shoulder ROM and SF-36 were performed . Results Overall , 22.3 % of participants indicated that they had pain , aching or stiffness in either of their shoulders . SPADI results were available for 588 of participants with current shoulder symptoms . The internal consistency of the SPADI subscales were high ( Cronbach 's alpha > 0.92 ) . Two factors , explaining 61.4 % of the total variance were extracted by factor analysis . These were interpreted as disability and pain respectively . There was a strong negative correlation between SPADI disability subscale scores and shoulder range of motion . SPADI disability , but not pain , subscale scores were correlated with age . Conclusions The SPADI is a valid measure to assess pain and disability in people with shoulder pain in a population -based study . In this setting , the SPADI had a bidimensional structure with both pain and disability subscales
The SPADI is the most frequently evaluated PROM and its measurement properties seem adequate apart from a lack of information regarding its measurement error and content validity .
Dutch users could use either the SDQ or the SST .
In Tamil , Slovene , Spanish and the Danish language s , the evaluated PROMs were not yet of acceptable validity .
None of these PROMs showed strong positive evidence for all measurement properties .
Objective To critically appraise and compare the measurement properties of self-administered patient-reported outcome measures ( PROMs ) focussing on the shoulder , assessing “ activity limitations . ”