Time trends in the incidence of interstitial lung disease across Brazil, Russia, India, China and South Africa (BRICS) from 1990 to 2019: An age‐period‐cohort analysis

The global incidence of interstitial lung disease (ILD) has risen over the past few decades. However, few studies have evaluated the status and incidence trends of ILD in Brazil, Russia, India, China and South Africa (BRICS). This study assesses the trends of ILD incidence across the BRICS with an emphasis on ILD changes from 1990 to 2019.