Proporción de cáncer de mama en mujeres de 50 a 69 años de Girona según el método de detección / Proportion of breast cancer in women aged 50 to 69 years from Girona, Spain, according to detection method

Fundamento y objetivo: El objetivo de este estudio fue determinar el estadio tumoral, la proporción de casos y la tasa específica por edad de las pacientes con cáncer de mama (CM) según el método de detección. Material y método: Los datos se obtuvieron del Registro de Cáncer de Girona de base poblacional. Se incluyeron las mujeres de 50 a 69 años diagnosticadas de CM en la provincia de Girona durante el período 1999-2006 (n = 1.254). Se clasificaron los CM según el método de detección: cáncer de cribado, cáncer de intervalo y otros. Se calculó la proporción de casos y la tasa específica por edad según el método de detección.Resultados: Durante los años 2002-2006, un 42,2% de los CM diagnosticados en Girona fueron cánceres de cribado, el 52,0% se detectaron fuera del Programa de Detección Precoz del Cáncer de Mama (PDPCM), y el 5,8% fueron cánceres de intervalo. Con la implementación del PDPCM disminuyó la incidencia del CM diagnosticado fuera del programa, aumentó la de los cánceres de cribado y poco después incrementó la de los cánceres de intervalo. Conclusiones: Durante los primeros años del funcionamiento del PDPCM (2002-2006) los casos de cáncer de intervalo representaron un porcentaje bajo (5,8%) respecto el total de CM diagnosticados en mujeres de 50 a 69 años en la provincia de Girona (AU)

Background and objective: The aim of this study was to determine the tumor stage, the proportion of cases and the age specific rate of breast cancer (BC) cases according to detection method. Material and method: Cases of women aged 50 to 69 years diagnosed with BC in the Girona province during 1999-2006 were extracted from the population-based Girona Cancer Registry (n = 1,254). BC was classified by detection method: screen-detected cancer, interval cancer and others. Proportion of cases and age-specific incidence were calculated according to detection method. Results: During the period 2002-2006, the proportion of screen-detected cancers, interval cancers and other cancers were 42.2%, 5.8% and 52.2%, respectively. After implementation of the early detection of breast cancer program (PDPCM), the incidence of screen-detected cases raised; thereafter, interval cancers also increased and the rate of other cancers decreased. Conclusions: In the Girona province during the fully implemented PDPCM period (2002-2006), interval cancers represented a low proportion (5.8%) of women diagnosed with BC at 50 to 69 years old (AU)

[Proportion of breast cancer in women aged 50 to 69 years from Girona, Spain, according to detection method]. / Proporción de cáncer de mama en mujeres de 50 a 69 años de Girona según el método de detección.

BACKGROUND AND OBJECTIVE: The aim of this study was to determine the tumor stage, the proportion of cases and the age specific rate of breast cancer (BC) cases according to detection method. MATERIAL AND METHOD: Cases of women aged 50 to 69 years diagnosed with BC in the Girona province during 1999-2006 were extracted from the population-based Girona Cancer Registry (n=1,254). BC was classified by detection method: screen-detected cancer, interval cancer and others. Proportion of cases and age-specific incidence were calculated according to detection method. RESULTS: During the period 2002-2006, the proportion of screen-detected cancers, interval cancers and other cancers were 42.2%, 5.8% and 52.2%, respectively. After implementation of the early detection of breast cancer program (PDPCM), the incidence of screen-detected cases raised; thereafter, interval cancers also increased and the rate of other cancers decreased. CONCLUSIONS: In the Girona province during the fully implemented PDPCM period (2002-2006), interval cancers represented a low proportion (5.8%) of women diagnosed with BC at 50 to 69 years old.