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Table 1 Patient Characteristics

From: Mapping analysis to estimate EQ-5D utility values using the COPD assessment test in Korea

Variables n, mean  
Total patients, n 299  
 Male, n (%) 258 (86.3)
 Female, n (%) 41 (13.7)
Age, mean (sd) 69.16 (8.8)
 40–54, n (%) 17 (5.7)
 55–64, n (%) 62 (20.7)
 65–74, n (%) 132 (44.1)
 75-, n (%) 88 (29.4)
Body mass index, mean (sd) 22.85 (3.3)
 18.5- (underweight), n (%) 26 (8.7)
 18.5–25 (normal), n (%) 198 (66.2)
 25–30 (overweight), n (%) 67 (22.4)
 30+ (obese), n (%) 8 (2.7)
Smoking history (pack-years), mean (sd) 36.93 (31.3)
 current or ex-smoker, n (%) 254 (84.9)
FEV1 (% predicted), mean (sd) 55.85 (17.94)
 80+ (mild), n (%) 32 (10.7)
 50–80 (moderate), n (%) 156 (52.4)
 30–50 (severe), n (%) 90 (30.2)
 30- (very severe), n (%) 20 (6.71)
  1. FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; FEV1%, FEV1/FVC ratio; FEV1% predicted, FEV1% of the patient divided by the average FEV1% in the population