Table 1. Baseline characteristics of the patients.

Values are mean ± standard deviation unless otherwise indicated.

n: number, mMRC: modified Medical Research Council scale, FEV1: forced expiratory volume in the first second, BMI: body mass index, BODEx: body mass index, airflow obstruction, dyspnea, and exacerbation, ADO: age, dyspnea severity, and airflow obstruction

Characteristics	Values
Number of patients	141
Age (years)	73 ± 10
Gender (female/male), n	26/115
Current smokers, n (%)	55 (39%)
Smoking (packs-year)	59 ± 27
Dyspnea (mMRC)	2.2 ± 0.9
No exacerbation in the previous year (n, %)	69 (49%)
Severe exacerbations (previous year) (n)	1.3 ± 1.7
FEV1 (% of reference)	46 ± 17
Anemia, n (% of patients)	34 (24%)
BODEx (range 0-9)	3.98 ± 2.10
BODEx-A3 (range 0-12)	4.70 ± 2.60
ADO (range 0-10)	5.26 ± 1.75
ADO-A3 (range 0-13)	5.98 ± 2.39
BMI (kg/m2)	27 ± 6
Mortality, 1 year (n, %)	21 (15%)
Mortality, 3 years (n, %)	48 (34%)