early prenatal care reduce or eliminate some risk factors criteria for diagnosing preterm labor include: gestation less than 36 wks documented uterine contractions every 5-10 mins lasting for atleast 30 seconds and persisting for more than 1 hr cervical dilation more than 2.5cm and 75% effaced ASSOCIATED FACTORS exact cause is unclear, risk factors: poor prenatal care, infections, including periodontal infections; nutritional status, socioeconomic status, race and lifestyle; maternal anemia, UTI, smoking…
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