CRP and chronic obstructive pulmonary disease: C-reactive protein, CRP; body fat percentage, BF%; chronic obstructive pulmonary disease, COPD; Body mass index, BMI; mean arterial pressure, MAP; fasting plasma glucose, FPG; total cholesterol, TC; triglycerides, TG; low-density lipopretein cholesterol, LDL-C; and high-density lipoprotein cholesterol, HDL-C; bioelectrical impedance analysis, BIA; forced vital capacity, FVC; forced expiratory volume in 1 second, FEV1; FEV1 to FVC ratio, FEV1/FVC; Restrictive lung disease, RLD; Waist-to-height ratio, WHtR; metabolic syndrome, MetS.