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Table 1 Clinical characteristics and demographics of patients (n = 257)

From: Differences in classification of COPD group using COPD assessment test (CAT) or modified Medical Research Council (mMRC) dyspnea scores: a cross-sectional analyses

Characteristics* Mean or number of patients SD or %
Age (years) 67.4 9.4
Sex (M:F), n 203:54 79%:21%
BMI 22.7 4.1
Smoking status   
ever smoker, n 182 70.8%
never smoker, n 75 29.2%
FEV1, % predicted 74.6 24.8
FEV1 ≥ 50%, n 207 80.5%
FEV1 < 50%. n 50 19.5%
FEV1/FVC 0.56 0.12
Frequent exacerbator, n 132 51.4%
mMRC scores 1.5 1.1
CAT, total 15.7 9.3
  1. *Values presented as mean (S.D.) unless otherwise indicated.
  2. Abbreviation: CAT COPD Assessment Test, mMRC modified Medical Research Council, BMI Body Mass Index (kg/m2), FEV1 Forced expiratory volume in 1 second, FVC Forced vital capacity.