In other terms, pregnant women who gained 22.5 kilograms had double the risk of having an infant with a high birth weight compared with those who only gained about nine kilograms.
换言之，与体重仅增加9公斤相比，体重增加22.5公斤的孕妇所生婴儿体重高的风险加倍。
In other terms, pregnant women who gained 22.5 kilograms had double the risk of having an infant with a high birth weight compared with those who only gained about nine kilograms.
换言之，与体重仅增加9公斤相比，体重增加22.5公斤的孕妇所生婴儿体重高的风险加倍。
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