Orebro Questionnaire: short and long forms of the Brazilian-Portuguese version

Purpose To translate, cross-culturally adapt and test the measurement properties of the A-rebro Musculoskeletal Pain Screening Questionnaire (A-MPSQ) short and long versions in Brazilian-Portuguese. Methods The A-MPSQ versions were translated, cross-culturally adapted and pretested in 30 patients with acute and subacute non-specific low back pain. Internal consistency, reproducibility (reliability and agreement), construct validity, and ceiling and floor effects were tested in 100 patients. Construct validity was assessed using the Roland-Morris Disability Questionnaire (RMDQ), the Tampa Scale for Kinesiophobia (TSK), and the Pain Numerical Rating Scale. Results Internal consistency was adequate (A-MPSQ: Cronbach's alpha = 0.83; A-MPSQ-short: Cronbach's alpha = 0.72). Reliability was substantial (A-MPSQ: ICC2,1 0.76; A-MPSQ-short: 0.78). Standard error of measurement was very good for the A-MPSQ (5 %) and good for the A-MPSQ-short (6.7 %); limits of agreement were 13.07 for the A-MPSQ and 1.37 for the A-MPSQ-short; and the minimum detectable change was 25.12 for the A-MPSQ and 15.51 for the A-MPSQ-short. The A-MPSQ total score showed a good correlation with the RMDQ (r = 0.73) and the TSK (r = 0.64) and a moderate correlation with pain intensity (current pain: r = 0.36; last 2 weeks: r = 0.37; last episode: r = 0.46). Moreover, A-MPSQ-short showed a good correlation with RMDQ (r = 0.69) and a moderate correlation with TSK (r = 0.57) and pain (current pain: r = 0.34; last 2 weeks: r = 0.36; last episode: r = 0.54). No ceiling or floor effects were detected in both versions. Conclusion The Brazilian-Portuguese A-MPSQ and A-MPSQ-short showed acceptable measurement properties and provide evidence that the Brazilian-Portuguese versions of A-MPSQ and A-MPSQ-short are similar to the original versions.