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BACKGROUND: Mantle cell lymphoma (MCL) is a distinct subtype of B-cell non-Hodgkin's lymphoma. To the authors' knowledge, little is known regarding its incidence patterns and associated factors. The purpose of the current study was to examine the incidence of MCL over a period of 13 years and to identify the factors associated with the incidence patterns. METHODS: Patients diagnosed with MCL between 1992 and 2004 were identified from the Surveillance, Epidemiology, and End Results (SEER) Tumor registries. SEER*Stat statistical software was used for analysis. RESULTS: Of the 87,166 patients diagnosed with non-Hodgkin's lymphoma during the 13-year period between 1992 and 2004, 2459 (2.8%) had confirmed MCL. The overall incidence of MCL (per 100,000) was 0.55, which increased with age: 0.07 in patients aged or =80 years. The age-adjusted incidence rate increased from 0.27 of 100,000 in 1992 to 0.69 of 100,000 in 2004, and the annual percent change was 5.87% (P or =50 years. Most patients were diagnosed with late-stage MCL, and there also were considerable geographic variations observed in incidence rate.
Zhou et al. (2008) studied this question.