Brighton musculoskeletal Patient-Reported Outcome Measure (BmPROM): An assessment of validity, reliability, and responsiveness

25-07-2018
Musculoskeletal (MSK) disorders in England are common and are a major cause of ill health, pain and physical limitations. Almost a third of all primary care consultations concern MSK conditions (30%), the most common reason for repeated consultations with a general practitioner. A wide range of outcome measures is currently being used to assess the clinical effectiveness of the treatment of these disorders. These outcome measures are usually aimed at a specific situation or measure the generic health status of the patient.

There is a need for an '' open source '', self-contained and validated outcome measure that is sensitive to measure the clinical effectiveness of MSK of the movement device. This study investigated the validity and reliability of the newly developed Brighton musculoskeletal Patient-Reported Outcome Measure (BmPROM) within the ambulatory outpatient clinic.

224 Patients who were outpatient in South East England with an MSK disorder participated in the study. The BmPROM was assessed on user-friendliness (estimated feedback, N = 224), reliability (internal consistency and test-retest reliability, n = 42), validity (internal and external construct validity, N = 224) and responsiveness (internal, N = 25) .

Exploration factor analysis indicated that a two-factor model is appropriate for the data. Factors were representative of '' Functionality '' and 'Well-being'. Correlations observed between the BmPROM and SF-36 domains provided evidence for convergent validity. Reliability results indicated that both subscales were internally consistent with alfas above the acceptable limits for both "Functionality" (a = .85, 95% CI [.81 .88]) and "Well-being" (a = .80, 95% CI [ .75, .84]). Test-retest analyzes (n = 42) showed a high degree of reliability between "Functionality" (ICC = .84, 95% CI [.72, .91]) and "Well-being" scores (ICC = .84; 95% CI) [.72, .91]).

Further testing of test-retest reliability by the Bland-Altman analysis showed that this is the difference between functionality and well-being. Test scores were not dependent on the absolute test score. Large treatment effect sizes were found for both subscales.

The BmPROM is a reliable and valid outcome measure for the evaluation of the physiotherapeutic treatment of MSK disorders.

Physiotherapy Research International, 2018. E. Bryant et al.

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