Secular trends in cancer mortality among Japanese immigrants in the state of Sao Paulo, Brazil, 1979-2001
Secular trends in cancer mortality among Japanese immigrants in the state of Sao Paulo, Brazil, 1979-2001
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DOI：
10.1097/cej.0b013e32811080df
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发表时间：
2008-02-01
影响因子：
2.4
通讯作者：
Tsugane, Shoichiro
中科院分区：
文献类型：
--
作者：
Iwasaki, Motoki;Mameri, Cecilia Polidoro;Tsugane, Shoichiro
我们调查了1979年至2001年期间圣保罗州第一代日裔巴西人癌症死亡率的长期趋势。研究结果与居住在日本的日本人和居住在圣保罗州的巴西人进行了比较。我们使用了1979-1981年、1989-1991年和1999-2001年三个时期的死亡率数据，以及1980年、1991年和2000年巴西人口普查的日裔巴西人的人口数据。获得了居住在日本的日本人和居住在圣保罗州的巴西人与日裔巴西人相应的死亡率和人口数据。计算了三个不同时期和人口的日本-巴西人标准化死亡率和基于1980年居住在日本的日本人死亡率的标准化死亡率比。我们观察到，在所有三个人群中，20年来胃癌呈下降趋势，结肠癌、乳腺癌和前列腺癌呈上升趋势。在巴西的日本人胃癌的标准化死亡率下降到大约那些日本人生活在日本。虽然在过去20年中，巴西日裔的结肠癌、乳腺癌和前列腺癌的标准化死亡率有所增加，但结肠癌的标准化死亡率与居住在日本的日裔相似，而乳腺癌和前列腺癌的标准化死亡率则与居住在日本的日裔相似。（2000年分别为208和423）似乎介于居住在日本的日本人之间（2000年分别为152人和208人）和生活在圣保罗州的巴西人（2000年分别为281人和536人）。在过去的20年中，居住在日本的日本人肝癌和肺癌的标准化死亡率增加，但除男性肝癌外，日裔巴西人的标准化死亡率似乎与居住在圣保罗州的巴西人相似，没有观察到日裔巴西人的标准化死亡率增加趋势。死亡率的长期趋势证实了环境在癌症发展中的相对重要性。
We investigated secular trends in cancer mortality among first-generation Japanese-Brazilians in the state of Sao Paulo between 1979 and 2001. Results were compared with those for Japanese living in Japan and Brazilians living in the state of Sao Paulo. We used mortality data for three periods, 1979-1981, 1989-1991, and 1999-2001, and population data from Brazilian censuses in 1980,1991, and 2000 for Japanese-Brazilians. Available mortality and population data for Japanese living in Japan and Brazilians living in the state of Sao Paulo corresponding to those for Japanese-Brazilians were obtained. Age-standardized mortality rates for Japanese-Brazilians and standardized mortality ratios based on mortality of Japanese living in Japan in 1980 for the three different periods and populations were calculated. We observed a decreasing trend for stomach cancer and increasing trends for colon, breast and prostate cancer over the 20 years in all three populations. Standardized mortality ratios for stomach cancer in Japanese-Brazilians declined to approximately those of Japanese living in Japan. Although standardized mortality ratios from colon, breast and prostate cancer in Japanese-Brazilians increased over the last 20 years, those for colon cancer were similar to the Japanese living in Japan whereas those for breast and prostate cancer (208 and 423 in 2000, respectively) appeared to be intermediate between those for Japanese living in Japan (152 and 208 in 2000, respectively) and Brazilians living in the state of Sao Paulo (281 and 536 in 2000, respectively). Standardized mortality ratios for liver and lung cancer increased in Japanese living in Japan over the last 20 years but no increasing trend was observed for Japanese-Brazilians, except for liver cancer in men, and standardized mortality ratios in Japanese-Brazilians seemed to be similar to the Brazilians living in the state of Sao Paulo. Secular trends in mortality confirm the relative importance of environment in the development of cancer.