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The causes of preterm labor are often not identifiable. Women with a previous history of preterm labor have the highest risk of developing it again, between 17 and 37%. Other risk factors are: low socioeconomic status, minority race, maternal age ...
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The causes of premature labor cannot always be determined. Some research suggests that infection of the urinary or reproductive tract may stimulate premature labor and premature births. Multiple pregnancies (twins, triplets, etc.) are more likely ...
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