Steven Stellman - Cancer mortality in Chinese immigrants to New York City. Comparison with Chinese in Tianjin and with United States-born whites

Document created by Steven Stellman on Dec 1, 2016
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  Stellman, S. D., Wang, Q. S. 73 (4) 1270-5-

  Abstract: BACKGROUND: Cancer rates in immigrant   populations are frequently found to be intermediate between the   country of origin and the adopted country. Such observations play   an important role in establishing the environmental origin of   cancer. Chinese now constitute the third largest group   immigrating to New York City. METHODS: Cancer deaths in New York   City (1986-90) among 706 male and 412 female foreign-born Chinese   were compared using proportional cancer mortality ratios (PCMR)   with Chinese who died of cancer in Tianjin, China (19,461 deaths,   1983-87), and with United States-born whites in New York City   (32,293 deaths). RESULTS: Cancer sites were divided into those   for which the age-adjusted PCMR were significantly higher in   Tianjin Chinese (TC) compared with New York City whites (NYW),   and those for which PCMR were significantly lower in TC compared   with NYW. PCMR for Chinese immigrants usually fell between those   of TC and NYW, but some were closer to those of TC (e.g., liver,   gallbladder, female lung) whereas other sites were closer to   those of NYW (e.g., esophagus, colon, rectum). CONCLUSIONS: These   data provide additional support for the concept that much cancer   originates with and can be modified by environmental factors.

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