Development of a valid simplified Chinese version of the Osteoarthritis of Knee and Hip Quality of Life (OAKHQOL) in patients with knee or hip osteoarthritis.

As the first specific questionnaire for knee or hip osteoarthritis (OA) patients' condition assessment, the Osteoarthritis of Knee and Hip Quality of Life (OAKHQOL) questionnaire is widely used and its original version is French. Although it has already been translated into multiple languages, a Chinese version is still unpublished, despite the fact that China has the largest population of OA patients in the world. The objectives of our study were to adapt the OAKHQOL questionnaire into simplified Chinese and to assess its psychometric properties in Chinese patients with knee or hip OA. First, we developed the simplified Chinese version of OAKHQOL (SC-OAKHOQL) in a five-step procedure of translation and cross-cultural adaptation. Next, we calculated the Cronbach's alpha, intraclass correlation coefficient (ICC), Pearson's correlation coefficient (r), effect size (ES) and standardized response mean (SRM) to evaluate the reliability, validity and responsiveness of the SC-OAKHQOL, respectively. Unidimensionality of subscales was assessed by the principal component analysis (PCA) of residuals. Overall, 144 knee or hip OA patients successfully completed all of the questionnaires. Excellent or good internal consistency (alpha = 0.826-0.964) was found in the SC-OAKHQOL, as well as excellent test-retest reliability (ICC = 0.888-0.944). Good correlations were also obtained among physical subscales (r = 0.646-0.934), as well as mental subscales (r = 0.786-0.874) in the SC-OAKHQOL and other questionnaires, on which excellent or good validity of the SC-OAKHQOL shall be based. With the exception of the social support subscale, all others contained excellent or good responsiveness (ES, SRM = 1.02-2.92). The unidimensionality of five subscales was respected according to the PCA of residuals. The SC-OAKHQOL questionnaire is reliable, valid and responsive for the evaluation of Chinese osteoarthritis patients of the knee or hip, and it would be an effective instrument.

Wang W ，He CR ，Zheng W ，Li J ，Xu WD ... -  《-》

Cross-cultural adaptation and validation of the Arabic version of the knee and hip health-related quality of life (Mini-OAKHQOL) questionnaire in male Saudi patients with osteoarthritis: a methodological observational design.

Osteoarthritis (OA) is common in Saudi Arabia, has a significant impact on quality of life (QoL), and lacks a specific questionnaire to measure QoL. The primary objective of this study was to translate and cross-culturally adapt the Mini Osteoarthritis Knee and Hip Quality of Life (Mini-OAKHQOL) questionnaire into Arabic and to determine its psychometric properties among OA knee and/or hip patients in Saudi Arabia. A methodological observational design was conducted and followed standard guidelines for cross-cultural adaptation of Mini-OAKHQOL into Saudi Arabic. Two hundred and eight primary OA knee and/or hip male participants aged between 45 and 80 years with a mean age of 58.65 ± 13.8 years and a BMI of 29.5 ± 1.2 kg/m2 were included and performed the stages of translation to target Arabic language (forward T1 and T2), synthesized an Arabic draft (T12), then back-translated to English (BT1 and BT2), followed by expert committee review to rectify the deficiencies leading to a prefinal stage involving a pilot test on native Arabic speakers, thereby finalized a final Arabic version. The Arabic Mini-OAKHQOL, Arabic Short Form 12 (SF12), and visual analog scale (VAS) were administered to analyze internal consistency (IC), test-retest reliability at baseline as well as one week later (up to the 10th day). The construct validity was tested using Spearman's rank correlation, and factor analysis was done to establish a five-factor fit model. Homogeneity was determined using principal component analysis (PCA). Floor and ceiling effects calculated in percentages. The Arabic Mini-OAKHQOL showed an excellent Cronbach's alpha of the overall scale (α = 0.931) for its internal consistency and an excellent intraclass correlation coefficient (ICC) of 0.947 for its retest reliability, with a high response rate of 93.75%. The construct validity of this scale was good with Ar-SF12 and VAS pain. A five-factor model fit was considered acceptable, and factor loading for each item found within the permissible limits confirmed the factorial validity. None of the items, dimensions, or overall scale showed either a floor or ceiling effect. The adapted and tested Arabic Mini-OAKHQOL is a reliable and valid questionnaire to measure the impact of knee and/or hip OA on quality of life in the Saudi Arabian male OA population to reduce the respondent's burden for use in clinical and prospective studies.

Alharbi MT ，Ateef M ，Alanazi A ，Alzhrani M ... -  《PeerJ》

Psychometric properties of the French translation of the reduced KOOS and HOOS (KOOS-PS and HOOS-PS).

Ornetti P ，Perruccio AV ，Roos EM ，Lohmander LS ，Davis AM ，Maillefert JF ... -  《-》

Simplified Chinese version of hip and knee replacement expectations surveys in patients with osteoarthritis and ankylosing spondylitis: cross-cultural adaptation, validation and reliability.

Wang C ，Zhang C ，Liu DL ，Tong WW ，He CR ，Huang X ，Xu WD ... -  《-》

Validation of the Mini-OAKHQOL for use in patients with osteoarthritis in Spain.

Gonzalez Sáenz de Tejada M ，Bilbao A ，Herrera C ，García L ，Sarasqueta C ，Escobar A ... -  《-》