ASMD	absolute standardized mean difference
ATC	Anatomical Therapeutic Chemical Classification System
BE	non-cystic fibrosis bronchiectasis
BMI	body mass index
CCI	Charlson Comorbidity Index
CI	confidence interval
COPD	chronic obstructive pulmonary disease
First-time S. aureus isolation	first-time S. aureus isolation from a lower respiratory tract sample
H. influenzae	Haemophilus influenzae
HR	hazard ratio
ICD-10	International Classification of Diseases and Related Health Problems 10th Revision
ICS	inhaled corticosteroids
IPTW	inverse probability of treatment weighted model
IQR	inter-quartile range
LABA	long-acting beta agonist
M. catarrhalis	Moraxella catarrhalis
OCS	oral corticosteroids
P. aeruginosa	Pseudomonas aeruginosa
Py	person-year
SD	standard deviation
S. aureus	Staphylococcus aureus
S. pneumoniae	Streptococcus pneumoniae