RESUMO
BACKGROUND: The Orebro Musculoskeletal Pain Screening Questionnaire (OMPSQ) is a valid screening tool to identify those musculoskeletal patients at risk of developing chronicity and disability. A Hong Kong Chinese version of the OMPSQ (COMPSQ-HK) was developed with satisfactory construct validity and predictive validity. OBJECTIVE: The aim of this study was to develop a 10-item short form of the COMPSQ-HK (COMPSQ-HK10) and examine its measurement properties. METHODS: The 10 items were identified from the suggestion by the original author of OMPSQ. The data of the 10 items were extracted from the main study to develop the COMPSQ-HK conducted from 2010 to 2013. The internal consistency using Cronbach's alpha, test-retest reliability examining intraclass correlation coefficient (ICC 1 , 1 ), minimum detectable change and 95% limits of agreement, construct validity by correlating COMPSQ-HK10 with pain, disability score, kinesiophobia score and Medical Outcomes Study Short Form 12, and predictive validity investigating receiver operating characteristic (ROC) curve analyses with sick leave > 60 days and return-to-work status at one year were calculated. RESULTS: A total of 305 back patients and 160 neck patients were recruited with about 30% of patients lost to follow-up at one year. Both the internal consistency (Cronbach's alpha as 0.732 to 0.757) and test-retest reliabilities (ICC 1 , 1 as 0.868 for both back and neck patients) were satisfactory. The correlations between COMPSQ-HK10 and COMPSQ-HK for back and neck patients were excellent (Pearson r as 0.919 and 0.896, respectively, p < 0 . 001 ). The areas under the ROC curves for back and neck patients were similar for COMPSQ-HK10 and COMPSQ-HK, ranging from 0.603 to 0.712. A cut-off score of 54 of COMPSQ-HK10 was recommended in predicting "sick leave of more than 60 days at one year" and "return to work for at least four consecutive weeks at one year". CONCLUSION: The COMPSQ-HK10 has comparable measurement properties with the COMPSQ-HK. It is recommended to use the COMPSQ-HK10 for routine screening to identify patients of back and neck pain at risk of developing chronic pain and disability.
RESUMO
UNLABELLED: The Disability of the Arm, Shoulder and Hand (DASH) was translated into Chinese by a physiotherapy team of the Prince of Wales Hospital, Hong Kong (DASH-HKPWH). OBJECTIVES: This study evaluated the cross-cultural adaptation process, face validity, internal consistency and reliability of the DASH-HKPWH. METHOD: Language officers and medical professionals from different fields were invited to translate and evaluate the face validity of the DASH-HKPWH. 88 patients were recruited to complete two DASH questionnaires on two occasions 1-2 weeks apart. RESULTS: Some adjustments were made to the translations based on the cultural and linguistic practice in Hong Kong. The face validity was satisfactory with a mean endorsement score of 3.2. The difference between the mean of DASH scores was not significant (t = -0.35, p = 0.73). The ICC (1,1) and Cronbach's alpha for the 30-item Disability/Symptom of the DASH-HKPWH was 0.77 and 0.94, respectively. CONCLUSION: The translation was valid and reliable and acceptably equivalent to the original version. The questionnaire is suitable for measuring changes experienced by patients with any upper extremity disorders.
