The cumulative Kaplan-Meier survival plot. Survival of 24 patients with histologically documented UIP/IPF, followed till death (uncensored: n = 8) or reporting of the study (censored: n = 16). Shown are sample size (n) and survival [mean and median (95% Confidence Interval)].
Triantafillidou et al. Diagnostic Pathology 2011 6:28 doi:10.1186/1746-1596-6-28