Characteristics of patients with chronic obstructive pulmonary disease (COPD) admitted to a tertiary referral hospital.

203 patients were recruited for the study. They had a mean age of 73.1±9.9 years. 91.6% were male; 57.6% were of Chinese ethnicity. 22.7% had frequent hospital admissions. 70.0% had significant comorbidities, 3.94% had long-term oxygen therapy. Inhaler compliance data were available for 62 of the patients, and 16.1% were not compliant. CAT score data were available for 62 patients and 71.0% scored 10 or more. mMRC scale was available for 40 patients and 57.5% scored 3 or more. The severity of COPD was available for 165 patients with spirometric data: 24.2% mild, 44.2% moderate, 31.5% severe or very severe.