The shortened Örebro Musculoskeletal Screening Questionnaire: Evaluation in a work-injured population
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The ֲebro Musculoskeletal Screening Questionnaire (֍SQ) is a recently validated, 21-item instrument. It modified the original ֲebro Musculoskeletal Pain Questionnaire (֍PainQ) providing broader focus and also improved development and practicality for identifying work-injured patients at-risk of persistent musculoskeletal problems. These instruments are critiqued for practicality and a shortened-version recommended. A 10-item ֍PainQ was previously proposed for low-back-pain; however, general musculoskeletal populations require a broader validated instrument. To provide this, a two-stage retrospective study was performed. Stage 1 used three phases to: determined a minimum 12-item tool was required to ensure internal consistency (a > 0.70); subsequently developed two shortened ֍SQ-12 versions from qualitative content-retention and quantitative factor analysis reductive methodologies; then calibrated both versions in a spine-cohort. Stage 2 validated and compared both versions' clinimetric properties in a general musculoskeletal-cohort to ascertain which was most appropriate. The ֍PainQ-10 and a randomly-created ֍PainQ-10 were compared post-hoc for criterion validity and factor structure. A physical therapy outpatients convenience sample (n = 279) was divided into developmental (spine = 136) and calibration (musculoskeletal = 143) cohorts. Primary outcomes were functional status, insurer-reported absenteeism and costs at six months. The qualitative-֍SQ-12 demonstrated preferred properties with higher 21-item-֍SQ correlation (r = 0.97; quantitative-֍SQ-12: r = 0.94; ֍PainQ-10: r = 0.92; ֍PainQ-10-random: r = 0.94) and improved predictive ability cut-offs for high-risk (72 ֍SQ-12 points, 60%) and low-risk (57 ֍SQ-12 points, 48%). The ֍SQ-12 content-retention version is recommended. It demonstrated suitable internal consistency, a three-factor structure and high correlation with recovery time (r = 0.73). The ֍SQ-12 will facilitate early identification and management of at-risk individuals and enable targeted intervention strategies through psychosocial informed management principles.
© 2013 Elsevier. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
Medical and Health Sciences not elsewhere classified