About SUID and SIDS
Understanding the Problem
Nearly 4,000 US infants die suddenly and unexpectedly each year. We often refer to these deaths as sudden unexpected infant death (SUID). Although the causes of death in many of these children can’t be explained, most occur while the infant is sleeping in an unsafe sleeping environment.
Researchers can’t be sure how often these deaths happen because of accidental suffocation from soft bedding or overlay (another person rolling on top of or against the infant while sleeping). Often, no one sees these deaths, and there are no tests to tell sudden infant death syndrome (SIDS) apart from suffocation.
To complicate matters, people who investigate SUIDs may report cause of death in different ways and may not include enough information about the circumstances of the event from the death scene.
Law enforcement, first responders, death scene investigators, medical examiners, coroners, and forensic pathologists all play a role in carrying out the case investigation.
A thorough case investigation includes
- An examination of the death scene.
- An autopsy (medical examination of the body after death).
- A review of the infant’s medical history.
Most SUIDs are reported as one of three types of infant deaths.
CDC Resources and Activities
- Sudden Unexplained Infant Death Investigation Reporting Form (SUIDIRF)
The SUIDIRF was designed to help investigative agencies to better understand the circumstances and factors contributing to unexplained infant deaths.
- Sudden Unexplained Infant Death Investigation Training Resources
CDC collaborated with organizations and subject matter experts to create training materials for investigators and instructors who investigate infant deaths.
- Sudden Unexpected Infant Death Case Registry
The purpose of the Sudden Unexpected Infant Death Case Registry is to conduct population-based SUID surveillance in grantee states and to categorize SUID cases using standardized definitions.
- Protect the Ones You Love Initiative
CDC’s National Center for Injury Prevention and Control launched the Protect the Ones You Love initiative to raise parents’ awareness about the leading causes of child injury in the United States (including suffocation) and how they can be prevented.
- Pathologic Evaluation of Sudden Unexplained Infant Death
CDC’s Infectious Diseases Pathology Branch in the National Center for Emerging and Zoonotic Infectious Diseases (NCEZID) evaluates biospecimens from infants whose deaths cannot be explained. State health departments, US physicians, and non-US physicians can submit specimens for deaths where clinical or laboratory information suggests potential infection.
- National Center for Health Statistics- National Vital Statistics System
The National Vital Statistics System publishes information about infant deaths, which may be used to monitor causes of death (such as SIDS) among infants younger than 1 year of age in the United States, Puerto Rico, the Virgin Islands, and Guam.
- PRAMS (Pregnancy Risk Assessment Monitoring System)
PRAMS collects state-specific, population-based maternal and infant health data from women 2 to 6 months after delivery, including infant sleep practices.
Sudden Death in the Young Case Registry
CDC and the National Institutes of Health are working together to create the Sudden Death in the Young Case Registry to get better information on sudden unexpected deaths among young people up to age 19 in the United States.
Safe to Sleep
CDC collaborates with the National Institutes of Health in its Safe to Sleep campaign, formerly known as the Back to Sleep campaign. Safe to Sleep has outreach and education activities aimed at reducing infant death from sudden infant death syndrome (SIDS) and other sleep-related infant deaths.
- Page last reviewed: January 30, 2015
- Page last updated: January 30, 2015
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