Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/113424
Title: Cross cultural adaptation and validation of the Chinese Health Assessment Questionnaire for use in rheumatoid arthritis
Authors: Koh, E.T.
Seow, A. 
Pong, L.Y.
Koh, W.H.
Chan, L.
Howe, H.S.
Lim, T.H.
Low, C.K.
Keywords: Chinese
Health assessment questionnaire
Rheumatoid arthritis
Issue Date: Sep-1998
Citation: Koh, E.T.,Seow, A.,Pong, L.Y.,Koh, W.H.,Chan, L.,Howe, H.S.,Lim, T.H.,Low, C.K. (1998-09). Cross cultural adaptation and validation of the Chinese Health Assessment Questionnaire for use in rheumatoid arthritis. Journal of Rheumatology 25 (9) : 1705-1708. ScholarBank@NUS Repository.
Abstract: Objective. The Health Assessment Questionnaire - Disability Index (HAQ), used as a disability and outcome measurement in rheumatoid arthritis (RA), has been validated in several languages, but not in Chinese. Our aim was to validate the Chinese version of HAQ (Chinese-HAQ) to suit the needs of Chinese speaking patients with RA in an Asian setting. Methods. The original HAQ was modified in the context of Chinese culture and translated into Chinese by 2 translators aware of the objective of the questionnaire. The Chinese HAQ was self-administered by 42 patients with RA during their routine follow-up visit and one week later. Results. The test-retest reliability assessed using Spearman's correlation coefficient was 0.84. Between dimensions measured in the HAQ, the highest test-retest reliability was observed for walking (Spearman correlation coefficient τ(S) = 0.80)and the lowest was for eating (τ(S) = 0.54). The internal consistency of the scale using Cronbach's alpha was high at 0.86. In terms of criterion validity, the Chinese-HAQ score was found to correlate well with American College of Rheumatology functional status (τ(S) = 0.501, p = 0.01). The Chinese-HAQ scores also correlated well with markers of disease activity such as patient's perception of pain measured on a visual analog scale (τ(S) = 0.55, p < 0.001), grip strength in mm Hg (τ(S) = -0.55, p < 0.001), and physician's assessment of disease activity (τ(S) = 0.59, p < 0.001). Conclusion. The Chinese HAQ is a reliable and valid instrument for studies measuring disability of patients with RA in Singapore.
Source Title: Journal of Rheumatology
URI: http://scholarbank.nus.edu.sg/handle/10635/113424
ISSN: 0315162X
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