Aumento de la incidencia de cáncer colorrectal en la provincia de Salamanca: comparación de dos periodos: 2004-2006 y 2010-2012

2016 
espanolObjetivos: comparar incidencia, mortalidad y caracteristicas epidemiologicas de los pacientes diagnosticados de cancer colorrectal (CCR) en la provincia de Salamanca entre dos periodos: 2010-2012 y 2004-2006. Metodos: estudio observacional retrospectivo. Incluimos todos los CCR diagnosticados segun criterios histopatologicos del 01/01/2004 al 31/12/2006 y del 01/01/2010 al 31/12/2012. Las variables estudiadas fueron genero, edad, fecha de diagnostico y localizacion del tumor. Se han calculado incidencia acumulada e incidencia especifica por grupos de edad comparando los resultados entre periodos. Hemos ajustado las tasas por edad a la poblacion mundial estandar para poder compararla con otras poblaciones. Resultados: detectamos un 38% mas de CCR en el periodo de 2010 a 2012 que en el de 2004 a 2006. Las variables (sexo, edad de diagnostico y localizacion) han sido similares en ambos grupos. En el periodo de 2010-2012 se realizaron mas del doble de colonoscopias que en el de 2004-2006. La mortalidad poblacional por CCR tambien aumento, aunque de manera mucho menos importante que la incidencia. Conclusiones: existe un claro aumento de la incidencia del CCR en la provincia de Salamanca entre los anos 2004-2006 y 2010-2012 no relacionado con el envejecimiento. El aumento considerable de colonoscopias puede haber sido un factor importante para el aumento en la deteccion. EnglishObjectives: To compare incidence, mortality and epidemiological characteristics of patients diagnosed with colorectal cancer (CRC) in the province of Salamanca over two different periods: 2010-2012 and 2004-2006. Methods: Retrospective observational study. We include all diagnosed cases of CRC according to histopathological criteria from 01/01/2004 to 31/12/2006 and from 01/01/2010 to 31/12/2012. The studied variables were sex, age, date of diagnosis and tumor location. Cumulative incidence and specific incidence in different age groups were measured and compared between the two periods. The age rates were adjusted to the standard world population so that the results could be compared with those of other populations. Results: We detected 38% more cases of CRC in the 2010- 2012 period than in 2004-2006. Variables distribution (sex, age at diagnosis and location) was similar in both groups. More than twice as many colonoscopies were performed in 2010-2012 than in 2004-2006. Population mortality due to CRC also increased, although much less importantly than the incidence of this condition. Conclusions: There has been a clear increase in CRC incidence in the province of Salamanca from 2004-2006 to 2010- 2012 which is not related to the ageing of the population. The remarkable increase in colonoscopies may have been an important factor for the increased detection.
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