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Risk and outcome of non‐Hodgkin lymphoma among classical Hodgkin lymphoma survivors
Author(s) -
Xavier Ana C.,
Armeson Kent E.,
Hill Elizabeth G.,
Costa Luciano J.
Publication year - 2013
Publication title -
cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.052
H-Index - 304
eISSN - 1097-0142
pISSN - 0008-543X
DOI - 10.1002/cncr.28194
Subject(s) - medicine , lymphoma , cumulative incidence , incidence (geometry) , confidence interval , hazard ratio , epidemiology , gastroenterology , standardized mortality ratio , oncology , cohort , physics , optics
BACKGROUND Survivors of classical Hodgkin lymphoma (cHL) are at an increased risk of developing secondary non‐Hodgkin lymphomas (sNHLs). To the authors' knowledge, the outcome of patients with sNHL compared with their de novo counterparts (dnNHL) is unknown. METHODS Data from 26,826 cases of HL from the Surveillance, Epidemiology, and End Results (SEER) program that were diagnosed between 1992 and 2009 were used to obtain the risk of further development of different subtypes of sNHL. The survival of patients with sNHL was compared with that of matched patients with dnNHL. RESULTS The estimated cumulative incidence of sNHL was 2.50% (95% confidence interval [95% CI], 2.10‐2.89) at 15 years from the diagnosis of cHL. The standardized incidence ratio was 10.5 (95% CI, 8.9‐12.4) for aggressive B‐cell NHL, 4.0 (95% CI, 3.1‐5.1) for indolent B‐cell NHL, and 14.6 (95% CI, 10.3‐20.1) for T‐cell NHL. Patients with indolent B‐cell sNHL had a worse overall survival compared with their dnNHL counterparts (hazards ratio [HR] of death, 2.7; 95% CI, 1.3‐5.7). Survival was not significantly different between patients with sNHL and those with dnNHL with regard to aggressive B‐cell NHL (HR, 1.3; 95% CI, 0.6‐2.7) or T‐cell NHL (HR, 0.8; 95% CI, 0.3‐1.8). CONCLUSIONS The risk of developing sNHL after cHL is substantial. Although patients with indolent B‐cell sNHL have inferior survival, patients with aggressive B‐cell sNHL and T‐cell sNHL have survival comparable to that of their de novo counterparts. Cancer 2013;119:3385–92 . © 2013 American Cancer Society .