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Sudden Infant Death Syndrome (SIDS): Home

Sudden Infant Death Syndrome (SIDS) is the leading cause of death among infants aged 1 to 12 months, and is the third leading cause overall of infant mortality in the United States. Although the overall rate of SIDS in the United States has declined by more than 50% since 1990, rates have declined less among non-Hispanic Black and American Indian/Alaska Native infants. Preventing SIDS remains an important public health priority.

If you or someone you know has experienced the loss of a baby, whether during pregnancy or after birth, please see this webpage from First Candle/SIDS Alliance.*

SIDS is defined as the sudden death of an infant less than one year of age that cannot be explained after a thorough investigation is conducted, including a complete autopsy, examination of the death scene, and review of the clinical history.

Infant Death Investigation
for health professionals, law enforcement, and researchers

SUIDI Overview
Each year in the United States, more than 4,500 infants die suddenly of no obvious cause. Half of these sudden, unexplained infant deaths (SUID) are due to sudden infant death syndrome (SIDS), the leading cause of SUID and of all deaths among infants aged 1–12 months.

About the SUIDI Form
The new Sudden Unexplained Infant Death Investigation (SUIDI) Reporting Form replaces the 1996 Guidelines for the Death Scene Investigation of Sudden, Unexplained Infant Death and the Investigation Report Form (SUIDIRF).How to ue SUIDI form

How to use the SUIDI FormSUIDI From

SUIDI Reporting Form PDF icon (1.31MB)

Cause of Death Diagnosis

Fetal and Infant Mortality Information


Selected Resources

Back-to-Sleep Campaign

SIDS Support and Bereavement*

SIDS and Vaccination

50 State Summary of SIDS Laws* (The National Conference of State Legislatures)

The American Academy of Pediatrics announces new SIDS Prevention Recommendations.*
View the full report at * (PDF–526KB)

Distinguishing Sudden Infant Death Syndrome (SIDS) From Child Abuse Fatalities*
A revised clinical report from the AAP provides health professionals with information and suggestions for avoiding stigmatizing families of SIDS victims.

Search PubMed for articles on SIDS
This search is being conducted on PubMed an NLM/NIH service.

Links to non-Federal organizations found at this site are provided solely as a service to our users. These links do not constitute an endorsement of these organizations or their programs by CDC or the Federal Government, and none should be inferred. The CDC is not responsible for the content of the individual organization Web pages found at these links.


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Page last reviewed: 4/7/08
Page last modified: 4/7/08
Content source: Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion

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bullet About SUIDI Reporting Form
bullet How to use the SUIDI Form
bullet Cause of Death Diagnosis
bullet Fetal and Infant Mortality Information
bullet SUIDI Training Material
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bullet Adolescent Reproductive Health
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bullet Maternal and Infant Health Research
bullet Refugee Reproductive Health
bullet Sudden Infant Death Syndrome
bullet Unintended Pregnancy
bullet Women's Reproductive Health

bullet Division of Reproductive Health

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