CI	Confidence interval
CTD-ILD	Connective tissue disease-associated interstitial lung disease
DLCOc	Diffusing capacity for carbon monoxide corrected for hemoglobin
FHP	Fibrotic hypersensitivity pneumonitis
FVC	Forced vital capacity
HRCT	High-resolution computed tomography
ILD	Interstitial lung disease
IPAFs	Interstitial pneumonia with autoimmune features
IPF	Idiopathic pulmonary fibrosis
LB	Lung biopsy
OR	Odds ratio
PF-ILD	Progressive fibrosing interstitial lung disease
PFT	Pulmonary function test
PPF	Progressive pulmonary fibrosis
RA-ILD	Rheumatoid arthritis-associated interstitial lung disease
Ref	Reference
SNP	Single nucleotide polymorphism
SR-ILD	Smoking-related interstitial lung disease
TL	Telomere length
TPF	Transplant-free
UIP	Usual interstitial pneumonia
Yrs	Years