ADIPOQ and rheumatoid arthritis: Next, to understand whether body composition of RA patients affects RA disease activity and serum adiponectin levels, we divided the 351 patients into five body composition phenotypes: underweight (BMI < 18.5, VFA < 100), normal weight (+) visceral adiposity (-) (18.5 ≤ BMI < 25, VFA < 100), normal weight (+) visceral adiposity (+) (18.5 ≤ BMI < 25, VFA ≥ 100), overweight (+) visceral adiposity (-) (25 < BMI, VFA < 100), and overweight (+) visceral adiposity (+) (25 < BMI, VFA ≥ 100) (Table 2).