Covariates	HR (95% CI)	p-value
Full-dose group	0.16 (0.03-0.85)	0.03
Reduced-dose group	0.41 (0.14-1.21)	0.11
Age	1.01 (0.94-1.07)	0.87
Male Gender	1.76 (0.37-8.31)	0.47
Smoke exposure	0.92 (0.33-2.58)	0.88
Number of comorbidities	0.45 (0.21-0.95)	0.04
Presence of pulmonary hypertension	0.37 (0.07-1.88)	0.23
% predicted FVC at start of dose	0.97 (0.94-0.99)	0.03