Multiple births and congenital anomalies in Tokyo Metropolitan Hospitals, 1979-1990.

@article{Kato1992MultipleBA,
  title={Multiple births and congenital anomalies in Tokyo Metropolitan Hospitals, 1979-1990.},
  author={Kayoko Kato and Kei Fujiki},
  journal={Acta geneticae medicae et gemellologiae},
  year={1992},
  volume={41 4},
  pages={253-9}
}
The rate of multiple births and the incidence of congenital anomalies in Tokyo Metropolitan Hospitals were studied during the period 1979-1990. The number of twins was 968 pairs (8.23 per 1,000 deliveries) and of triplets 18 sets (15.3 per 100,000 deliveries) among 117,672 deliveries including 1,587 stillbirths after 16 weeks gestation. Multiple birth rates increased yearly. Stillbirth rates in twins and triplets were 5.5% and 16.7% respectively, which were both significantly higher than that… CONTINUE READING