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Births: preliminary data for 2003.

Brady E Hamilton¹, Joyce A Martin, Paul D Sutton

¹Division of Vital Statistics, Centers for Disease Control and Prevention, National Center for Health Statistics, Hyattsville, MD 20782, USA.

National Vital Statistics Reports : From the Centers for Disease Control and Prevention, National Center for Health Statistics, National Vital Statistics System

|December 30, 2004

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In 2003, U.S. birth rates increased overall, with a decline in teenage births but rises in births to unmarried women and cesarean deliveries. Preterm and low birthweight rates also saw increases.

Area of Science:

Demography
Public Health
Vital Statistics

Background:

The United States experienced shifts in birth trends during 2003, necessitating an analysis of demographic and health-related factors.
Understanding these trends is crucial for public health planning and resource allocation.

Purpose of the Study:

To present preliminary data on U.S. births for 2003, analyzing trends by maternal age, race, and Hispanic origin.
To examine data on marital status, tobacco use, prenatal care, cesarean delivery, preterm births, and low birthweight.

Main Methods:

Utilized data representing nearly 99% of all births in the United States for 2003.
Employed weighting methods to align with independent control counts from State vital statistics offices.
Conducted comparisons with finalized data from 2002.

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Main Results:

The crude birth rate and fertility rate increased in 2003, while teenage birth rates continued their decline to record lows.
Birth rates for women in their 30s and 40s increased, alongside a rise in births to unmarried women.
Cesarean delivery rates increased, while the rate of vaginal birth after previous cesarean (VBAC) decreased; preterm and low birthweight rates also rose.

Conclusions:

The 2003 U.S. birth data indicate a complex interplay of declining teenage fertility, increasing maternal age at childbirth, and rising rates of cesarean births and adverse birth outcomes.
Continued monitoring of these trends is essential for public health initiatives aimed at improving maternal and infant health.