Seasonal patterns in perinatal mortality and preterm delivery.

  title={Seasonal patterns in perinatal mortality and preterm delivery.},
  author={Cesar Ariel Keller and Robert P. Nugent},
  journal={American journal of epidemiology},
  volume={118 5},
An investigation of possible seasonal patterns in preterm delivery and perinatal mortality utilized linked birth, infant death, and fetal death records from Minnesota for the years 1967-1973. Data included over 400,000 white singleton live births and stillbirths of 29 or more weeks completed gestation. Composite monthly cohorts of ongoing pregnancies were constructed for each month of the year and the probability of a preterm delivery and/or perinatal death was estimated. A statistically… CONTINUE READING


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