Table 2: Correlation coefficients showing associations between radiographic grade and clinical parameters.

BMI (r)Disease duration (r)WOMAC-A (r)WOMAC-B (r)WOMAC-C (r)Kellgren-Lawrence (r)

Age−0.223*0.217*0.081−0.0490.1140.367**
BMI0.1730.100.0370.1690.149
Disease duration0.1020.1510.1360.386*
WOMAC-A0.342**0.631**−0.046
WOMAC-B0.331**−0.119
WOMAC-C0.172

* P < 0.05 and ** .
WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index.
BMI: Body mass index.