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Comparative Study
. 2014 Mar;23(3):434-44.
doi: 10.1016/j.jse.2013.09.029. Epub 2014 Jan 7.

Evaluation of shoulder-specific patient-reported outcome measures: a systematic and standardized comparison of available evidence

Stefanie Schmidt  1 , Montse Ferrer  2 , Marta González  3 , Nerea González  4 , José Maria Valderas  5 , Jordi Alonso  1 , Antonio Escobar  3 , Kalliopi Vrotsou  6 ; EMPRO Group
Collaborators, Affiliations
Comparative Study

Evaluation of shoulder-specific patient-reported outcome measures: a systematic and standardized comparison of available evidence

Stefanie Schmidt et al. J Shoulder Elbow Surg. 2014 Mar.

Abstract

Background: The aim of this study was to perform a standardized and systematic evaluation of the available evidence on multi-item shoulder-specific patient-reported outcome measures that are applicable to a wide spectrum of disorders.

Materials and methods: A systematic review was conducted in PubMed to identify articles with information regarding the development process, metric properties, and administration issues of shoulder-specific patient-reported outcome measures. Two experts independently reviewed all the articles identified for one instrument and applied the EMPRO (Evaluating Measures of Patient Reported Outcomes) tool, which was designed to assess the quality of attributes in a standardized way. An overall EMPRO score and 6 attribute-specific scores were calculated (range, 0-100) to describe the quality of instrument performance.

Results: We identified 11 instruments and 112 articles (2-30 articles per instrument). The American Shoulder and Elbow Surgeons (ASES) shoulder assessment, Simple Shoulder Test (SST), and Oxford Shoulder Score (OSS) were the best rated, with overall scores of 77.4 points, 72.6 points, and 69.7 points, respectively. They have been shown to be valid, reliable, and responsive, with a low administration burden. Acceptable results were also found for the Flexilevel Scale of Shoulder Function, Shoulder Pain and Disability Index, and Dutch Shoulder Disability Questionnaire, but some of their attributes need further evaluation.

Conclusions: Current evidence supports the use of the ASES, SST, or OSS. We recommend the SST for longitudinal studies or clinical trials, the Dutch Shoulder Disability Questionnaire for clinical practice to minimize administration burden, and the ASES or OSS to discriminate among patients' or groups' evaluations at one point of time.

Keywords: Shoulder pain; disability evaluation; outcome assessment; psychometrics; quality of life; questionnaires; validation studies.

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