title: Örebro Questionnaire: short and long forms of the Brazilian-Portuguese version.
abstract: OBJECTIVE
  To translate, cross-culturally adapt and test the measurement properties of the Örebro Musculoskeletal Pain Screening Questionnaire (ÖMPSQ) short and long versions in Brazilian-Portuguese.
  
  
  METHODS
  The ÖMPSQ 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 (ÖMPSQ: Cronbach's alpha = 0.83; ÖMPSQ-short: Cronbach's alpha = 0.72). Reliability was substantial (ÖMPSQ: ICC2,1 0.76; ÖMPSQ-short: 0.78). Standard error of measurement was very good for the ÖMPSQ (5 %) and good for the ÖMPSQ-short (6.7 %); limits of agreement were 13.07 for the ÖMPSQ and 1.37 for the ÖMPSQ-short; and the minimum detectable change was 25.12 for the ÖMPSQ and 15.51 for the ÖMPSQ-short. The ÖMPSQ 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, ÖMPSQ-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.
  
  
  CONCLUSIONS
  The Brazilian-Portuguese ÖMPSQ and ÖMPSQ-short showed acceptable measurement properties and provide evidence that the Brazilian-Portuguese versions of ÖMPSQ and ÖMPSQ-short are similar to the original versions.
authors.affiliation: Master's and Doctoral Programs in Physical Therapy, Universidade Cidade de São Paulo, Rua Cesário Galeno 448/475, Tatuapé, São Paulo, SP, CEP 03071-000, Brazil. felipercfagundes@gmail.com.
authors.forename: Felipe Ribeiro Cabral
authors.initials: FR
authors.lastname: Fagundes
authors.affiliation: Master's and Doctoral Programs in Physical Therapy, Universidade Cidade de São Paulo, Rua Cesário Galeno 448/475, Tatuapé, São Paulo, SP, CEP 03071-000, Brazil.|Musculoskeletal Division, The George Institute for Global Health, Sydney, Australia.
authors.forename: Leonardo Oliveira Pena
authors.initials: LO
authors.lastname: Costa
authors.affiliation: Master's and Doctoral Programs in Physical Therapy, Universidade Cidade de São Paulo, Rua Cesário Galeno 448/475, Tatuapé, São Paulo, SP, CEP 03071-000, Brazil.
authors.forename: Fernanda Ferreira
authors.initials: FF
authors.lastname: Fuhro
authors.affiliation: Master's and Doctoral Programs in Physical Therapy, Universidade Cidade de São Paulo, Rua Cesário Galeno 448/475, Tatuapé, São Paulo, SP, CEP 03071-000, Brazil.
authors.forename: Ana Carolina Tacollini
authors.initials: AC
authors.lastname: Manzoni
authors.affiliation: Master's and Doctoral Programs in Physical Therapy, Universidade Cidade de São Paulo, Rua Cesário Galeno 448/475, Tatuapé, São Paulo, SP, CEP 03071-000, Brazil.
authors.forename: Naiane Teixeira Bastos
authors.initials: NT
authors.lastname: de Oliveira
authors.affiliation: Master's and Doctoral Programs in Physical Therapy, Universidade Cidade de São Paulo, Rua Cesário Galeno 448/475, Tatuapé, São Paulo, SP, CEP 03071-000, Brazil.
authors.forename: Cristina Maria Nunes
authors.initials: CM
authors.lastname: Cabral
mesh_terms: D001938:Brazil; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D011788:Quality of Life / Q000523:psychology*; D011795:Surveys and Questionnaires / Q000706:statistics & numerical data*
keywords: Low back pain; Prognosis; Questionnaire; Screening; Validation; Yellow flags