Development of the Thai Knee OsteoArthritis Screening Questionnaire (Thai-KOA-SQ) in Kanleurng Sub-District, Nakronpanom Province
Bhuddhipong Satayavongthip PhD*, Parimoke Kerdchantuk PhD**, Rodchares Hanrinth MSc**, Theerasak Methieng Pharm D**, Phuwipol Khunpimul Pharm D**
Affiliation : * Public Health Program, Faculty of Sciences and Technology, Nakhon Ratchasima Rajabhat University, Nakhon Ratchasima, Thailand ** Clinical Pharmacy Group, Faculty of Pharmacy, Mahasarakham University, Maha Sarakham, Thailand
Objective : To develop a simple questionnaire to use for screening Thai people for knee osteoarthritis (OA).
Material and Method: Subjects’ characteristics and data covering all known risk factors for OA were collected from a
sample of villagers at Kanleurng Sub-District, Nakronpanom Province. Hip, knee, and finger radiographs were taken from
all subjects (n = 146) to diagnose OA. Multiple logistic regression was used to select the items contained in the questionnaire.
A ROC curve was used to define the best cut-off point and distinguish between OA and non-OA.
Results : Three factors were identified as being associated with knee OA and were included in a questionnaire. The Thai-KOA-
SQ included questions about knee pain, age and body mass index (BMI). The questionnaire has 79.2% sensitivity, 78.4%
specificity and 85.1% for the area under the ROC curve.
Conclusion : This questionnaire should be validated in a large group of people, in order to be further developed as the
screening questionnaire for knee OA in the general Thai population.
Keywords : Knee, Osteoarthritis, Questionnaire, Screening
