So more than doubling the risk can certainly site to the population Now these kind of results show how important it is to do studies that don't group everybody in the population together.

由图可见,发病率差异量超过一倍,这些研究结果表明,在研究过程中分组的重要性

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

But the hypothesis was based on this association more or less, that looked at the rates of breast cancer across different countries and how much dietary fat those countries consumed and so you get a nice little scatter plot.

但以上假说,多少也基于一些合作研究,看看乳腺癌在不同国家,的发病率,那些国家在饮食中摄入了多少脂肪,然后就会得到一个不错的散点图

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选