The Lymphoma Epidemiology of Outcomes (LEO) Cohort Study

PROJECT SUMMARY In 2020, an estimated 77,240 people in the US will be diagnosed with non-Hodgkin lymphoma (NHL), and 19,940 will die from this cancer. NHL incidence rates increased over the last half of the 20th century and only recently stabilized. In parallel, NHL survival rates began improving in the mid-1990s with the advent of improved treatment strategies, leading to the current 5-year survival rate of 74%. These trends have led to a growth in the number of NHL survivors, estimated at over 757,000 in 2019. To address the unmet health needs of this patient population, we established the Lymphoma Epidemiology of Outcomes (LEO) cohort study, which by June 2020 will have enrolled over 13,000 NHL patients and have