GAP scoring system in IPF patients treated with antifibrotics: prognostic performance and 1- to 3- years mortality: a retrospective study

Introduction: To inform IPF patients about the expected prognosis of their disease, the GAP stage system was developed, a scoring system encompassing age, gender, FVC% and DLCO%. However, survival rates were determined in an untreated IPF cohort. Aims: The objective of this study was to evaluate the GAP stage system as a prognostic tool and provide GAP-stratified survival data, in an IPF cohort treated with antifibrotics....