IL6 and complex regional pain syndrome: This study also investigated the effects of CRPS on blood biochemical characteristics (e.g., triglyceride (TG), total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), interleukin 6 (IL6), haemoglobin A1c (HbA1c), fasting blood glucose (FBG), blood insulin levels, and body composition.