Document Type
Journal Article
Publication Date
5-2-2017
Journal
Cancer
DOI
10.1002/cncr.30739
Abstract
BACKGROUND
Survival after the diagnosis of diffuse large B-cell lymphoma (DLBCL) has been increasing since 2002 because of improved therapies; however, long-term outcomes for these patients in the modern treatment era are still unknown.
METHODS
Using Surveillance, Epidemiology, and End Results data, this study first assessed factors associated with DLBCL-specific mortality during 2002-2012. An epidemiologic risk profile, based on clinical and demographic characteristics, was used to stratify DLBCL cases into low-, medium-, and high-risk groups. The proportions of DLBCL cases that might be considered cured in these 3 risk groups was estimated. Risks of death due to various noncancer causes among DLBCL cases versus the general population were also calculated with standardized mortality ratios (SMRs).
RESULTS
Overall, 8274 deaths were recorded among 18,047 DLBCL cases; 76% of the total deaths were attributed to DLBCL, and 24% were attributed to noncancer causes. The 10-year survival rates for the low-, medium-, and high-risk groups were 80%, 60%, and 36%, respectively. The estimated cure proportions for the low-, medium-, and high-risk groups were 73%, 49%, and 27%, respectively; however, these cure estimates were uncertain because of the need to extrapolate the survival curves beyond the follow-up time. Mortality risks calculated with SMRs were elevated for conditions including vascular diseases (SMR, 1.3), infections (SMR, 3.1), gastrointestinal diseases (SMR, 2.5), and blood diseases (SMR, 4.6). These mortality risks were especially high within the initial 5 years after the diagnosis and declined after 5 years.
CONCLUSIONS
Some DLBCL patients may be cured of their cancer, but they continue to experience excess mortality from lymphoma and other noncancer causes. Cancer 2017. © 2017 American Cancer Society.
Creative Commons License
This work is free of known copyright restrictions.
APA Citation
Howlader, N., Mariotto, A., Besson, C., Suneja, G., Robien, K., Younes, N., & Engels, E. (2017). Cancer-Specific Mortality, Cure Fraction, and Noncancer Causes of Death Among Diffuse Large B-cell Lymphoma Patients in the Immunochemotherapy Era.. Cancer, (). http://dx.doi.org/10.1002/cncr.30739
Peer Reviewed
1
Open Access
1
Comments
This article has been contributed to by US Government employees and their work is in the public domain in the USA.