Preterm births - United States, 2007

Joyce A Martin1,

  • 1Division of Vital Statistics, National Center for Health Statistics, CDC, Hyattsville, MD 20782, USA. jcm9@cdc.gov

MMWR Supplements
|March 25, 2011
PubMed

Insights

Preterm birth rates in the U.S. have significantly increased, posing risks for infant survival and long-term disabilities. This trend highlights critical public health concerns for premature infants.

Area of Science:

  • Neonatal health
  • Public health
  • Perinatology

Background:

  • Infants born before 37 weeks gestation face higher mortality and disability risks.
  • The U.S. preterm birth rate saw a concerning rise of over 30% between 1981 and 2006.
  • Despite a slight decrease in 2007-2008, the rate remains elevated compared to previous decades.

Purpose of the Study:

  • To analyze trends in U.S. preterm birth rates.
  • To highlight the associated risks of preterm birth for infant survival and long-term health outcomes.

Main Methods:

  • Analysis of national birth data from 1981 to 2008.
  • Statistical examination of preterm birth rates across different years.

Main Results:

  • The U.S. preterm birth rate increased from 9.4% to 12.8% between 1981 and 2006.
  • The preterm birth rate in 2007-2008, while lower than the 2006 peak, exceeded all rates from 1981-2002.

Conclusions:

  • Preterm birth remains a significant public health challenge in the U.S.
  • The increasing trend underscores the need for interventions to improve neonatal outcomes and reduce long-term disabilities.

Related Concept Videos

Development of the Oral Microbiota01:28

Development of the Oral Microbiota

The establishment of the oral microbiome begins before birth, challenging the long-held belief that the fetal oral cavity is sterile. The presence of oral microbes such as Streptococcus and Fusobacterium in amniotic fluid suggests that microbial exposure may occur in utero, potentially through translocation from the maternal oral or gastrointestinal tract. This early colonization primes the neonatal immune system and sets the stage for subsequent microbial succession. Maternal health,...
Teratogenicity01:07

Teratogenicity

The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...
Development of Human Microbiota01:30

Development of Human Microbiota

The human microbiota begins developing at birth and undergoes continual change as we age. Infancy marks a critical period of microbial sensitivity, offering a “window of opportunity” during which beneficial microbes help mature the immune system. By age three, children typically develop a more stable and diverse microbial community. Newborns acquire microbes from their immediate environment; vaginal delivery favors maternal vaginal microbes, while cesarean births favor microbes from the skin...
Preventive Healthcare Services01:30

Preventive Healthcare Services

Preventive healthcare services keep people healthy via frequent check-ups, screening, and counseling. They primarily aid in disease prevention rather than treating an acute or chronic illness. Preventive treatment also keeps individuals productive and energetic, allowing them to work well into their retirement years. Examples of preventive care services include:
Prevalence and Incidence01:08

Prevalence and Incidence

In statistical epidemiology and health sciences, two essential metrics—prevalence and incidence—are fundamental for understanding disease dynamics within a population. These measures enable public health officials, epidemiologists, and researchers to assess the burden of diseases, allocate resources effectively, and design impactful public health policies and interventions.
Prevalence indicates the proportion of individuals in a population who have a specific disease or health condition at a...