The influence of maternal age on very preterm birth of twins: differential effects by parity.

@article{Branum2005TheIO,
  title={The influence of maternal age on very preterm birth of twins: differential effects by parity.},
  author={Amy M. Branum and Kenneth C. Schoendorf},
  journal={Paediatric and perinatal epidemiology},
  year={2005},
  volume={19 5},
  pages={399-404}
}
For singleton births, parity can modify the effect of maternal age on birth outcomes such as low birthweight and preterm birth; however, it is unknown whether this relationship exists for twin births. As the rate of twin births increases among older women, it is important to understand how parity may influence the relationship between maternal age and adverse birth outcomes. The NCHS Matched Multiple Birth Data Set, which contains all twin births in the USA from 1995 to 1998, was analysed… CONTINUE READING