Table 4.

Correlation coefficient (r) between BMI and various markers (pain, inflammation and oxidative stress) in knee osteoarthritic subjects.

Particulars	BMI group I	BMI group II
VAS pain score	+ 0.327	+ 0.463
CRP level	+ 0.534	+ 0.615
MDA level	+ 0.249	+ 0.571
IL-6	+ 0. 608	+ 0.693

BMI, body mass index; VAS, visual analog scale; CRP, plasma C- reactive protein; MDA, malondialdehyde; IL-6, synovial interleukin 6.