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The monitoring of uterine contractions at home has a lower sensitivity and positive predictive value than do other methods of predicting preterm delivery reported Dr. Jay D. Iams of Ohio State University, Columbus, and his associates.
In a prospective study of 306 women with singleton pregnancies, home uterine monitors had a sensitivity ranging from 9% to 28% and positively predicted l1%-25% of preterm deliveries in 48 women who gave birth before 35 weeks' gestation.
Women who had a maximal nighttime frequency of at least four contractions at 27-28 weeks' gestation were three times more likely to have a preterm delivery than other women (N. Engl. J. Med. 346[4]:250-55, 2002).
The women used a contraction monitor at home to record ...