Figure 2.

Kaplan-Meier event-free survival analysis stratified by visual and adaptive multiple features method (AMFM) ground glass reticular (GGR) density scores of 10% or greater, or less than 10%. Shown are Kaplan-Meier event-free (events of interest are FVC % predicted decline >10%, hospitalization, or death) survival estimates in subjects stratified by visual and AMFM GGR scores of 10% or greater total lung involvement versus less than 10%. The crosses denote censoring and the steps are events. Subjects having 10% or more total lung occupied by GGR densities at baseline have significantly worse event-free survival than those with less than 10% (log-rank visual, P = 0.002; AMFM, P = 0.0003).