Long-term Trends in Incidence and Mortality of Intrahepatic and Extrahepatic Bile Duct Cancer in Japan
Autor: | Mai Utada, Tomoko Tamaki, Ginji Endo, Tomotaka Sobue, Yuko Ohno |
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Rok vydání: | 2014 |
Předmět: |
Adult
Male medicine.medical_specialty Adolescent Epidemiology Extrahepatic bile duct cancer Bile Duct Neoplasm digestive system Gastroenterology Bile duct cancer Intrahepatic bile duct cancer Young Adult Age Distribution Japan Bile Ducts Extrahepatic extrahepatic bile duct cancer Internal medicine medicine Humans Longitudinal Studies Registries Mortality Sex Distribution Young adult Child Mortality trends Cancer Aged Aged 80 and over business.industry Incidence Incidence (epidemiology) General surgery Infant Newborn Infant General Medicine Middle Aged medicine.disease Bile Ducts Intrahepatic Bile Duct Neoplasms Child Preschool intrahepatic bile duct cancer Original Article Female Age distribution business |
Zdroj: | Journal of Epidemiology |
ISSN: | 1349-9092 0917-5040 |
Popis: | Background A report of multiple cases of bile duct cancer at a Japanese printing company raised concern about such cancers. We examined long-term trends in bile duct cancer in Japan. Methods Data from 4 population-based cancer registries were used to calculate incidence between 1985 and 2007, and vital statistics were used to estimate mortality between 1985 and 2011. Age-standardized rates were calculated and analyzed using a joinpoint regression model. Results Among men, the incidence rate of intrahepatic bile duct cancer increased throughout the observation period; among women, it increased until 1996–1998 and remained stable thereafter. The incidence rate of extrahepatic bile duct cancer was stable in men and decreased from 1993–1995 in women. In people aged 30 to 49 years, the incidence rates of intra- and extrahepatic bile duct cancer remained stable or decreased. The mortality rate of intrahepatic bile duct cancer increased in both sexes and in all age groups since 1996, while that of extrahepatic bile duct cancer decreased since 1992. In people aged 30 to 49 years, the mortality rates of intra- and extrahepatic bile duct cancer remained stable and decreased, respectively. Conclusions The incidence and mortality rates of intrahepatic bile duct cancer remained stable or increased throughout the observation period. The incidence rate of extrahepatic bile duct cancer remained stable or decreased, and the mortality rate decreased since 1992. In people aged 30 to 49 years, the incidence and mortality rates of intra- and extrahepatic bile cancer remained stable or decreased. |
Databáze: | OpenAIRE |
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