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Table 1 Basic characteristics of the cohort

From: Prevalence of different comorbidities in COPD patients by gender and GOLD stage

  Males (n = 880) Females (n = 336)  
    P
Mean age (y) 70.6 ± 9.9 69.7 ± 10.2 ns
Current smoker (n) 218 (24.8 %) 91 (27.1 %)  
Ex smoker (n) 516 (58.6 %) 192 (57.1 %)  
BMI 28.6 ± 6.8 27.6 ± 5.5 ns
FEV1 (% pred.) 61.0 ± 19.8 63.7 ± 22.9 ns
FEV1 (L) 1.4 ± 0.4 1.2 ± 0.7 ns
FEV1/FVC 55.2 ± 9.8 56.3 ± 9.1 ns
C C I 3.5 ± 1.9 3.4 ± 2.2 ns