Cardiovascular disease risks in younger versus older adult B-cell non-Hodgkin's lymphoma survivors.

INTRODUCTION Young cancer survivors may be at increased risk of early-onset chronic health conditions. The aim of this population-based study is to estimate cardiovascular disease (CVD) risk among younger versus older B-cell non-Hodgkin's lymphoma (B-NHL) survivors compared with their respective general population cohorts. METHODS B-NHL survivors diagnosed from 1997 to 2015 in the Utah Cancer Registry were matched with up to five cancer-free individuals on birth year, sex, and birth state, using the statewide Utah Population Database. Electronic medical records and statewide health care facility data were used to identify disease outcomes ≥5 years after cancer diagnosis. Cox Proportional Hazards models were used to estimate hazard ratios for B-NHL survivors diagnosed at <65 years and ≥65 years old. RESULTS Younger B-NHL survivors had higher relative risks than older cancer survivors of chronic rheumatic disease of the heart valves (HR = 4.14, 99% CI = 2.17-7.89; P valueheterogeneity = 0.004); peri-, endo-, and myocarditis (HR = 2.43, 99% CI = 1.38-4.28; P valueheterogeneity = 0.016); diseases of the arteries (HR = 1.63, 99% CI = 1.21-2.21; P valueheterogeneity = 0.044); and hypotension (HR = 2.44, 99% CI = 1.58-3.75; P valueheterogeneity = 0.048). B-NHL survivors of both age groups had elevated relative risks of heart disease overall and congestive heart failure. CONCLUSION Younger B-NHL survivors had higher risks than older B-NHL survivors of specific cardiovascular diseases compared to their respective general population cohorts.