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美国乳腺癌的发病率一直高于中国及日本4～7倍,其原因有待阐明。当中国人、日本人或菲律宾人移居美国后,其乳腺癌危险率历经数代升高而达到美国人的水平。本文的目的是定量分析亚裔美国妇女与各种移居形式有关的乳腺癌发病率。 在1983～1987年间于加州的旧金山-奥克兰,加州的洛杉矶及夏威夷州的阿胡地区,选择20～55岁的中国人、日本人及菲律宾妇女为对象,应用人群调查及病案对照的方法,共分析597名患者(70％符合上述条件)和966名对照(75％)。
The incidence of breast cancer in the United States has been 4 to 7 times higher than in China and Japan, and the reason remains to be elucidated. When Chinese, Japanese, or Filipinos moved to the United States, their risk of breast cancer increased over the years and reached the level of Americans. The purpose of this paper is to quantify the incidence of breast cancer in Asian-American women associated with various forms of emigration. From 1983 to 1987 in San Francisco-Auckland, Calif., Los Angeles, California, and Ahu, Hawaii, targeting Chinese, Japanese, and Filipino women aged 20-55 years, using demographic and case-control methods. Analysis of 597 patients (70% met the above conditions) and 966 controls (75%).