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RELATIONSHIP BETWEEN INDEX-TO-RING FINGER LENGTH RATIO (2D:4D) AND WOMAC OSTEOARTHRITIS INDEX IN WOMEN WITH KNEE OSTEOARTHRITIS

The difference in the index-to-ring finger length ratio (2D:4D) is associated with human behavior, physical capability, andrisk of developing knee osteoarthritis in women. We aimed to determine the relationship between 2D:4D, Western Ontarioand McMaster (WOMAC) osteoarthritis index, and body mass index (BMI) in women with mild to moderate kneeosteoarthritis. A cross-sectional study was conducted on 118 women with Kellgren-Lawrence grade 2-3 knee osteoarthritisusing the WOMAC questionnaire. The length of the index and ring fingers were measured using right-hand posterioanteriorview plain radiographs. The participants were classified into three groups: type I (index finger longer than ring finger),type II (equal length), and type III (index finger shorter than ring finger). BMI was determined using standard measurementsand calculations. There was no significant mean difference between the mean total WOMAC score and each of its componentswith the 2D:4D ratio. BMI correlated significantly with symptoms of knee osteoarthritis and the total WOMAC score(P<0.001). There was a significant relationship between the 2D:4D ratio and BMI (P=0.015). No relationship was foundbetween the 2D:4D ratio and WOMAC score. However, there was a positive correlation between the WOMAC score andBMI. The 2D:4D ratio had a significant relationship with BMI.