Higher mortality risk from lung and hematological neoplasms in patients with rheumatoid arthritis: An observational study from the Spanish National Registry.

Objective: Evaluating the impact of solid organ neoplasms (SON) and hematological neoplasms (HN) on mortality among RA patients in a nationwide study.

Methods: A retrospective, observational comparison of SON and HN-related deaths in RA patients and the general Spanish population was conducted (Spanish Hospital Discharge Database). Binary logistic regression analyzed the impact of RA on mortality risk from each neoplasm.