Distinctive incidence patterns of follicular lymphoma in Taiwan: Implications of ethnic differences
Journal
Cancer Medicine
Journal Volume
8
Journal Issue
4
Pages
1899-1907
Date Issued
2019
Author(s)
Abstract
Background: Follicular lymphoma (FL) is less prevalent in Asians, but detailed epidemiological analyses were not available. This study aimed to characterize the epidemiologic features of FL in Taiwan to explore the factors relevant to disease development and prognosis. Methods: We obtained epidemiological data for Taiwanese citizens during 1990-2012 from Taiwan's National Cancer Registry Database, and the corresponding data for US Caucasians from the Surveillance, Epidemiology, and End Results Program. Changes in incidence rates were evaluated with age-period-cohort (APC) analyses. Patient outcomes were compared with 5-year relative survival rates (RS) estimates. Results: Incidence rates of FL in Taiwan increased continuously during the study period (0.34 to 0.91 per 100 000 person-year from 1993-1997 to 2008-2012 in men, and from 0.29 [1993-1997] to 0.81 [2008-2012] in women), while rates in the US remained stable in both sexes, ranging between 3.73 and 3.96 in men and between 3.24 and 3.55 in women. Estimates of average annual percentage changes in incidence were significantly positive in Taiwan, but not in US Caucasians. Notably, the APC analysis identified a strong birth-cohort effect in Taiwan, corresponding to environmental alterations present during the study period. The estimated 5-year RS rates in both populations showed steady improvement, but the RS in Taiwanese patients was consistently 10% lower than in US Caucasians. Conclusion: A distinct increasing trend of incidence with a strong birth-cohort effect was identified in Taiwan, providing evidence of the association between environmental factors and disease development. ? 2019 The Authors. Cancer Medicine published by John Wiley & Sons Ltd.
SDGs
Other Subjects
adult; age distribution; aged; Article; cancer incidence; cancer prognosis; Caucasian; environmental factor; ethnic difference; female; follicular lymphoma; human; major clinical study; male; priority journal; survival rate; Taiwan; United States; adolescent; Asian continental ancestry group; cancer registry; child; cohort analysis; epidemiology; ethnology; factual database; follicular lymphoma; incidence; middle aged; prognosis; register; survival analysis; very elderly; young adult; Adolescent; Adult; Age Distribution; Aged; Aged, 80 and over; Asian Continental Ancestry Group; Child; Cohort Studies; Databases, Factual; European Continental Ancestry Group; Female; Humans; Incidence; Lymphoma, Follicular; Male; Middle Aged; Prognosis; Registries; SEER Program; Survival Analysis; Taiwan; United States; Young Adult
Publisher
Blackwell Publishing Ltd
Type
journal article