Validation of the Thai Version of a Screening Questionnaire for Detection of Systemic Lupus Erythematosus
Nuntana Kasitanon MD*, Worawit Louthrenoo MD*, Suparaporn Wangkaew MD*, Waraporn Sukitawut BSc*, Ramjai Wichainun BSc*
Affiliation : * Division of Rheumatology, Department of Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai
Objective : The present study was performed to assess the sensitivity and specificity of the translation question-
naire for Systemic Lupus Erythematosus (SLE) in Thai speaking populations.
Materials and Methods : The 10- item questionnaire was applied to out-patients at the rheumatology clinic of
the Chiang Mai University Hospital. One hundred and thirty-nine SLE, 109 Rheumatoid Arthritis (RA), and
35 Scleroderma (Scl) patients, as well as 88 Healthy Controls (HC) were enrolled into the present study.
Results : All subjects completed the questionnaire within 2 minutes. A positive response to three or more
questions of the questionnaire gave a sensitivity and specificity of 92.81% and 76.39%, respectively, and was
comparable to the original version.
Conclusion : This Thai-version of the screening questionnaire should be applied in the general population to
determine the prevalence of SLE.
Keywords : Systemic lupus erythematosus, SLE, Screening, Questionnaire
