Table 2 Spirometric classification of COPD severity
Airflow obstruction
Mild (n (%))Moderate (n (%))Severe (n (%))Very severe (n (%))Total (n (%))
Males24 (24.5)50 (51.0)21 (21.4)3 (3.1)98 (53.6)
Females32 (37.6)44 (51.8)7 (8.2)2 (2.3)85 (46.4)
Total56 (30.6)94 (51.4)28 (15.3)5 (2.7)183 (100)
p Value0.250.940.090.870.41
  • Post-bronchodilator American Thoracic Society/European Respiratory Society staging.3

  • COPD, chronic obstructive pulmonary disease.