Better health outcomes in high income groups tell us that the answer is no.

高收入阶层更好的健康结果告诉我们，答案是否定的。

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In the study, 402 9th- and 10th-grade students from four New York City high schools in low-income areas were divided into three groups.

在研究中，402名来自纽约四所低收入地区高中的9年级和10年级的学生被分为三组。

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Biology cannot explain why the health problems and the leading causes of mortality and disability differ so dramatically between women in high - and low-income groups.

生物学也不能解释为什么高收阶层和低收入阶层的妇女在健康问题和主要死亡和残疾原因方面存在如此巨大的差异。

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While smoking has fallen by half among high income groups since 1970, there has been little change among the poor.

ECONOMIST: Health

"Certainly we are seeing people from very high income groups, " says Patel.

CNN: STORY HIGHLIGHTS

In addition to looking at personal characteristics such as age and relationship status, the researchers divided the countries into high- and middle-to-low income groups according to average household earnings.

CNN: People in affluent nations may be more depression-prone