First-trimester bleeding characteristics associate with increased risk of preterm birth: data from a prospective pregnancy cohort.

@article{Edwards2012FirsttrimesterBC,
  title={First-trimester bleeding characteristics associate with increased risk of preterm birth: data from a prospective pregnancy cohort.},
  author={Digna R Velez Edwards and Donna D. Baird and Reem Hasan and David A. Savitz and Katherine Hartmann},
  journal={Human reproduction},
  year={2012},
  volume={27 1},
  pages={54-60}
}
BACKGROUND Prior evidence linking first-trimester bleeding with preterm birth (PTB, <37 weeks gestation) risk has been inconsistent and may be biased by subject selection and/or incomplete documentation of bleeding episodes for all participants. Prior studies have not carefully examined the role of bleeding characteristics in PTB risk. In the present study, we estimate the association between first-trimester bleeding and PTB in a non-clinical prospective cohort and test whether bleeding… CONTINUE READING

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