Raiah M, Ahmed Fouatih Z. [Time trends and age-period-cohort effects on the incidence of the most frequent cancers in Oran, Algeria, 1999-2018].
Rev Epidemiol Sante Publique 2021;
69:154-159. [PMID:
33583656 DOI:
10.1016/j.respe.2021.01.004]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 11/30/2020] [Accepted: 01/04/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND
Cancer is currently one of the major public health problems in Algeria. The aim of this study was to examine time trends and the effects of age, period and cohort on incidence at the major cancer locations from 1999 to 2018 in Oran, Algeria.
METHODS
Data on the five most frequent primary cancer locations among patients aged 20-79 years were collected from the Oran cancer registry. Annual percentile changes in incidence rates were evaluated using the Joinpoint regression program. Age-period-cohort models were designed to examine the effects of age, period and birth cohort on cancer incidence.
RESULTS
From 1999 to 2018, there were 12,278 incident cases at the five major cancer locations. Unfavorable trends in incidence were observed regarding lung and colorectal cancers in both sexes, as well as breast cancer in women. Age-period-cohort analysis showed that age, period and birth cohort yielded different effects at different cancer locations.
CONCLUSION
The observed trends primarily reflect lifestyle changes in Algeria over the course of recent years.
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