2604.01425 Competing Risks Regression with Semicompeting Data Reveals 28% Underestimation of Cardiovascular Mortality in Cancer Patients
Cancer patients face competing risks of cancer death and CVD. Using semicompeting risks methodology on 347,892 SEER-Medicare patients (2000--2020), we show standard cause-specific hazard regression underestimates 5-year CVD mortality by 28.