洛杉矶的非法移民都比较年长(30岁以下的移民仅有42%，而全国的这一比例为49%)，他们在美国生育后代的可能性比较大。

Los Angeles's illegal immigrants are relatively old (only 42% are under 30, compared with 49% nationwide) and more likely to have American children.

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但是阿尔法淀粉酶最高的一组妇女有12%的可能性不能怀孕。在最有机会生育的天数内，她们每天比阿尔法淀粉酶最低的一组妇女的怀孕概率低了12%。

But women in the group with the highest levels of alpha-amylase had a 12% lower chance of falling pregnant for each day of their most fertile days than those with the lowest levels of alpha-amylase.

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在15-18岁的女孩中，超过一半体重指数偏低，这就意味着她们生育的小孩营养不良的可能性更高。

Over half of all girls aged 15-18 had a low body-mass index, meaning they were likelier to produce undernourished babies.

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