The prevalence of RA in the United States is estimated to be 1.3 million, with women 3 times more likely to be affected than men.

美国RA的流行率估计达到1300万，其中女性受到的影响可能是男性的3倍。

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In the Philippines, the average income growth for women with 1-3 pregnancies was twice that of women who had been pregnant more than 7 times.

在菲律宾，怀孕1 - 3次妇女的人均收入增长幅度是怀孕7次以上妇女的两倍。

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The risk of secondary infertility among women with at least one abortion is 3 to 4 times greater than that among women who have not aborted.

有过至少1次堕胎经历的女性，继发性不孕症的风险是没有堕胎经历的女性的3 - 4倍。

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She visits the Brain Science Lab at Indiana University, which studies the hard- swimming members of the US Masters: men and women who swim 3, 500-5, 000 metres three to five times a week, sometimes for decades on end.

ECONOMIST: Lynn Sherr��s new book offers all the skinny on dipping