Breast cancer incidence and time trend in France from 1990 to 2007: a population-based study from two French cancer registries.
Ann Oncol
; 22(2): 329-34, 2011 Feb.
Article
em En
| MEDLINE
| ID: mdl-20682549
ABSTRACT
BACKGROUND:
The hypothesis of a link between breast cancer and hormone replacement therapy (HRT) is evoked to explain the recent decrease of incidence observed in several countries. The purpose of our study is to analyse the evolution of breast cancer incidence by stage. MATERIALS ANDMETHODS:
We used data from Tarn and Isère French cancer registries for the period 1990-2007. Trends of annual world population standardised incidence rates were studied using the Joinpoint method.RESULTS:
From 1990 to 1999, the incidence of invasive breast cancer increased annually by 1.2%, then by 4.8% from 1999 till 2003 and then decreased by 1.7%. For the women aged 50-74 years, annual changes were, respectively, 1.5%, 6.0% and 3.4%. In this group, the incidence of T1/T2-N0-M0 stages increased annually by 4.6% until 2003 and then decreased by 2.2%. Since 1990, the incidence of in situ breast cancer increased annually by 5%. From 2003 to 2004, prescribing of HRT decreased substantially.CONCLUSIONS:
Since 2003, the incidence of invasive breast cancer decreased for women aged 50-74 years, mainly involving T1/T2-N0-M0 stages. The reduction in HRT prescription may partly explain this decrease. The incidence of in situ breast cancer didn't decrease during the whole period.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias da Mama
/
Sistema de Registros
Tipo de estudo:
Incidence_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Aged
/
Female
/
Humans
/
Middle aged
País/Região como assunto:
Europa
Idioma:
En
Ano de publicação:
2011
Tipo de documento:
Article