Table 1.

Baseline characteristics of the bronchiectasis cohort (N = 895)

Characteristic
Sex
Male	427 (47.1)
Female	468 (52.9)
Age category, years
<45	146 (16.3)
45–55	114 (12.7)
56–65	187 (20.9)
66–75	248 (27.7)
>75	200 (22.4)
Mean (SD) observation period, years	6.2 (4.5)
Median (IQR) number of respiratory tract infections during the study period	5 (2–10)
Smoking habit
Never smoked	165 (18.4)
Ex-smoker	478 (53.4)
Current smoker	235 (26.3)
Missing information	17 (1.9)

Definition of abbreviations: IQR = interquartile range; SD = standard deviation.

Data presented as n (%) unless otherwise noted.