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Births: preliminary data for 2004.

Brady E Hamilton1, Joyce A Martin, Stephanie J Ventura

  • 1Divison of Vital Statistics, US Department of Health and Human Services, Centers for Disease Control, National Center for Health Statistics, Hyattsville, Maryland 20782, USA.

National Vital Statistics Reports : From the Centers for Disease Control and Prevention, National Center for Health Statistics, National Vital Statistics System
|February 3, 2006
PubMed
Summary
This summary is machine-generated.

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In 2004, U.S. birth rates saw mixed trends, with declines in teenage births but increases in births to unmarried mothers and cesarean deliveries. Preterm and low birthweight rates also rose, indicating persistent public health challenges.

Area of Science:

  • Demography
  • Public Health
  • Reproductive Health

Background:

  • National birth data provides crucial insights into population trends and maternal and infant health.
  • Understanding demographic shifts and health indicators is vital for public health policy and resource allocation.

Purpose of the Study:

  • To present preliminary U.S. birth data for 2004, analyzing trends by maternal demographics and health-related factors.
  • To compare 2004 birth statistics with data from the previous year (2003).

Main Methods:

  • Analysis of preliminary birth records representing 99.1% of all U.S. births in 2004.
  • Data weighting to independent control counts for accuracy.
  • Comparative analysis with 2003 vital statistics.

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Main Results:

  • Crude birth rate decreased slightly, while the fertility rate for women aged 15-44 increased. Teen birth rates declined, but births to unmarried women reached a record high (35.7%).
  • Cesarean delivery rates hit a record high (29.1%), with a notable decrease in vaginal birth after cesarean. Preterm birth (12.5%) and low birthweight (8.1%) rates also increased.
  • Smoking during pregnancy saw a slight decrease, but timely prenatal care initiation showed no improvement.

Conclusions:

  • While some indicators like teenage birth rates improved, rising rates of births to unmarried mothers, cesarean deliveries, preterm births, and low birthweight highlight ongoing public health concerns.
  • Continued monitoring and targeted interventions are necessary to address these complex trends in maternal and infant health.