Cross-cultural adaptation and validation of the Thai version of the Rheumatoid Arthritis Disease Activity Index (RADAI)
Tóm tắt
The objective of this study was to translate and evaluate the psychometric properties of the Thai version of the Rheumatoid Arthritis Disease Activity Index (RADAI) in patients with rheumatoid arthritis (RA). We translated and modified the original RADAI into the Thai version. A total of 116 Thai patients with RA were consecutively recruited. For test–retest reliability, 115 patients undertook RADAI questionnaires for 2 consecutive days. To test construct validity, the correlation of the single RADAI items and RADAI total scores with measures of disease activity and functional status was evaluated. Reliability was assessed using Cronbach’s alpha and intra-class correlation (ICC). The number of missing items and time-to-complete questionnaire were collected to estimate its feasibility. The RADAI significantly correlated with disease activity measured by the Clinical Disease Activity Index (CDAI) (r = 0.71), the Disease Activity Score 28 (DAS28) (r = 0.56), patient global assessment of disease activity (r = 0.71), and physician global assessment of disease activity (r = 0.66) and functional status measured by the Health Assessment Questionnaire (r = 0.52). The RADAI had a moderate internal consistency (Cronbach’s alpha = 0.69) and high test–retest reliability (ICC = 0.83). Ninety-one percentage completed questionnaires without missing an item. Mean time-to-complete questionnaire (±SD) was 4.82 (±1.86) min. The Thai RADAI questionnaire is valid, reliable, and easy to use for assessing disease activity in daily practice and epidemiologic research. Its psychometric properties were comparable to the original version.
Tài liệu tham khảo
Aletaha D, Smolen JS (2005) The Simplified Disease Activity Index (SDAI) and the Clinical Disease Activity Index (CDAI): a review of their usefulness and validity in rheumatoid arthritis. Clin Exp Rheumatol 23:S100–S108
Stucki G, Liang MH, Stucki S, Bruhlmann P, Michel BA (1995) A self-administered rheumatoid arthritis disease activity index (RADAI) for epidemiologic research. Psychometric properties and correlation with parameters of disease activity. Arthritis Rheum 38:795–798
Fransen J, Langenegger T, Michel BA, Stucki G (2000) Feasibility and validity of the RADAI, a self-administered rheumatoid arthritis disease activity index. Rheumatology 39:321–327
Fransen J, Hauselmann H, Michel BA, Caravatti M, Stucki G (2001) Responsiveness of the self-assessed rheumatoid arthritis disease activity index to a flare of disease activity. Arthritis Rheum 44:53–60
Beaton DE, Bombardier C, Guillemin F, Ferraz MB (2000) Guidelines for the process of cross-cultural adaptation of self-report measures. Spine 25:3186–3191
Arnett FC, Edworthy SM, Bloch DA, Mcshane DJ, Fries JF, Cooper NS, Healey LA, Kaplan SR, Liang MH, Luthra HS, Thomas A, Medsger J, Mitchell DM, Neustadt DH, Pinals RS, Schaller JG, Sharp JT, Wilder RL, Hunder GG (1988) The American Rheumatism Association 1987 revised criteria for the classification of rheumatoid arthritis. Arthritis Rheum 31:315–324
Prevoo MLL, Van’t Hof MA, Kuper HH, Van Leeuwen MA, Van de Putte LB, Van Riel PLCM (1995) Modified disease activity scores that include twenty-eight-joint counts development and validation in a prospective longitudinal study of patients with rheumatoid arthritis. Arthritis Rheum 38:44–48
Aletaha D, Nell VP, Stamm T, Uffmann M, Pflugbeil S, Machold K, Smolen JS (2005) Acute phase reactants add little to composite disease activity indices for rheumatoid arthritis: validation of a clinical activity score. Arthritis Res Ther 7:R796–R806
Osiri M, Deesomchok U, Tugwell P (2001) Evaluation of functional ability of Thai patients with rheumatoid arthritis by the use of a Thai version of the Health Assessment Questionnaire. Rheumatology 40:555–558
Fransen J, Stucki G, Riel PLCMv (2003) Rheumatoid arthritis measures: Disease Activity Score (DAS), Disease Activity Score-28 (DAS28), Rapid Assessment of Disease Activity in Rheumatology (RADAR), and Rheumatoid Arthritis Disease Activity Index (RADAI). Arthritis Care Res 49:S214–S224
Veehof MM, ten Klooster PM, Taal E, van Riel PL, van de Laar MA (2008) Psychometric properties of the Rheumatoid Arthritis Disease Activity Index (RADAI) in a cohort of consecutive Dutch patients with RA starting anti-tumour necrosis factor treatment. Ann Rheum Dis 67:789–793