Prediction of patient‐specific risk of early preterm delivery using maternal history and sonographic measurement of cervical length: a population‐based prospective study

@article{To2006PredictionOP,
  title={Prediction of patient‐specific risk of early preterm delivery using maternal history and sonographic measurement of cervical length: a population‐based prospective study},
  author={M S To and Chara Skentou and Patrick Royston and C. K. H. Yu and Kypros H. Nicolaides},
  journal={Ultrasound in Obstetrics and Gynecology},
  year={2006},
  volume={27}
}
To develop a model for calculating the patient‐specific risk of spontaneous early preterm delivery by combining maternal factors and the transvaginal sonographic measurement of cervical length at 22 + 0 to 24 + 6 weeks, and to compare the detection rate of this method to that achieved from screening by cervical length or maternal characteristics alone. 
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To determine whether routine measurement of second‐trimester transvaginal cervical length by ultrasound in low‐risk singleton pregnancies is a cost‐effective strategy, a large number of pregnancies are studied. Expand
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