Abstract:
OBJECTIVE:To present methodological issues that can arise with the assessment of the risk of a second primary cancer (SPC) occurring in the same site as a first cancer using registry data. MATERIAL AND METHODS:Data from ten French cancer registries were used, including data for patients with a first prostate cancer (in males), breast cancer (in females), and colon, lung and kidney cancer (in both sexes) diagnosed between 1989 and 2004. Standardized incidence ratios (SIRs) of SPC were computed by excluding, or not, the risk of an SPC at the same site. RESULTS:For prostate cancer, the SIR dropped from 1.11 to 0.72 when the risk of SPC of the prostate was included. SIRs increased from 1.36 to 1.45, from 1.14 to 1.21, from 1.57 to 2.01, and from 1.37 to 1.51 for breast, colon, lung, and kidney respectively. CONCLUSION:The inclusion, or not, of an SPC at the same site can impact on SPC risk estimates.
journal_name
Cancer Epidemioljournal_title
Cancer epidemiologyauthors
Jégu J,Moitry M,Bara S,Trétarre B,Guizard AV,Woronoff AS,Daubisse-Marliac L,Bouvier V,Troussard X,Colonna M,Klein D,Lapôtre-Ledoux B,Velten Mdoi
10.1016/j.canep.2017.10.004subject
Has Abstractpub_date
2017-12-01 00:00:00pages
41-43eissn
1877-7821issn
1877-783Xpii
S1877-7821(17)30160-1journal_volume
51pub_type
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