Checkpoint Inhibitor Pneumonitis in Non‐Small Cell Lung Cancer With Chronic Lung Disease: A Comparative Study of <scp>ILD</scp> , <scp>COPD</scp> , and the General Population Using a Global Federated Database

ILD significantly increases the risk of developing CIP and worsens associated outcomes, including recurrence and mortality. These findings support closer surveillance and risk stratification in ICI-treated patients with underlying ILD.