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Table 3 Pulmonary function of the male COPD group according to GOLD classification

From: Erectile dysfunction and sex hormone changes in chronic obstructive pulmonary disease patients

  Predicted FEV1(%) (mean ± SD) n (%)
Mild 86.36 ± 4.3 11 (15.7)
Moderate 64.52 ± 8.25 40 (57.1)
Severe 41.12 ± 6.1 16 (22.9)
Very severe 18.66 ± 5.5 3 (4.3)