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Table 1 Characteristics of the study subjects

From: Increased circulating obestatin in patients with chronic obstructive pulmonary disease

  Control COPD
Age, y 60.41 ± 6.60 59.78 ± 8.71
Sex, male/female 13/9 20/12
Smoking history, pack/year 12.96 ± 18.19 11.40 ± 16.39
BMI (kg/m2) 22.66 ± 2.96 18.99 ± 1.00*
FFM, kg 24.96 + 4.79 24.63 + 5.20*
Percent body fat, % weight 55.42 + 7.70 49.88 + 8.91*
Waist circumference (cm) 76.78 ± 9.64 68.13 ± 6.39*
Hip circumference (cm) 89.27 ± 7.12 84.54 ± 4.34*
Waist hip ratio 0.86 ± 0.06 0.81 ± 0.05*
FEV1/FVC, % 84.41 ± 4.58 63.66 ± 6.24*
FEV1, % predicted 85.51 + 20.23 69.81 + 15.99
Total cholesterol (mmol/L) 4.81 ± 1.16 4.68 ± 0.95
Triglyceride (mmol/L) 1.33 ± 0.53 1.04 ± 0.40
Creatinine (μmol/L) 88.32 ± 11.41 89.63 ± 16.78
Uric acid (μmol/L) 313.41 ± 68.12 302.31 ± 60.16
Blood urea nitrogen (μmol/L) 5.59 ± 1.33 5.72 ± 1.11
  1. BMI, Body mass index; FFM, free fat mass; FEV1, forced expiratory volume in one second; FVC, forced vital capacity; COPD, chronic obstructive pulmonary disease. Values presented are mean ± SD. *indicate significant differences compared with normal control group (p < 0.05).