Change in the miscarriage rate, live birth rate per cycle started, or the multiple pregnancy rate.

流产率，已启动的周期活胎出生率或多胎妊娠率的变化。

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The watchdog found "limited, poor-quality" evidence that alcohol may be linked to a higher miscarriage rate.

这家监督机构发现“有限的、不充足的”证据表明，酒精与更高的流产率有关。

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Nobody is saying it's easy. The miscarriage rate is higher in older women, as is the risk of having a disabled child.

没有人说这是一件容易的事情，大龄妇女的流产率很高，生残障孩子的风险也比较大。

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Among women who consumed no caffeine, the miscarriage rate was 12.5 percent.

CNN: Study: Caffeine may boost miscarriage risk

But Dr Laufer said if this applied to the Ashkenazi Jews it should be accompanied by a higher than usual miscarriage rate.

BBC: NEWS | Health | Genes help women over 45 conceive

Some research suggests that the miscarriage rate following chorionic villus sampling may be as high as 2%, the researchers said, which, if true, would raise that toll closer to 600.

BBC: Down's test miscarriage warning