SIDS Statistics 2016

Centers for Disease Control and Prevention (CDC) Data and Statistics

Fast Facts

In 2016, there were about 3,600 sudden unexpected infant deaths (SUID) in the United States. These deaths occur among infants less than 1 year old and have no immediately obvious cause.

The three commonly reported types of SUID include the following:

  • SIDS.

  • Unknown cause.

  • Accidental suffocation and strangulation in bed.

In 2016, there were about 1,500 deaths due to SIDS, 1,200 deaths due to unknown causes, and about 900 deaths due to accidental suffocation and strangulation in bed.

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Breakdown of Sudden Unexpected Infant Death by Cause, 2016



SOURCE: CDC/NCHS, National Vital Statistics System, Compressed Mortality File

This chart shows the breakdown of sudden unexpected infant deaths by cause in 2016. 42% of cases were categorized as sudden infant death syndrome, followed by unknown cause (34%), and accidental suffocation and strangulation in bed (24%).

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Trends in Sudden Unexpected Infant Death by Cause, 1990-2016


SOURCE: CDC/NCHS, National Vital Statistics System, Compressed Mortality File

This graph shows the trends in sudden unexpected infant death (SUID) rates in the United States from 1990 through 2016.

  • In 1990, the SUID rate, which includes sudden infant death syndrome, unknown cause, and accidental suffocation and strangulation in bed, was 154.6 deaths per 100,000 live births. The SUID rate declined considerably following the release of the American Academy of Pediatrics safe sleep recommendations in 1992, the initiation of the Back to Sleep campaign in 1994, and the release of the Sudden Unexplained Infant Death Investigation Reporting Form in 1996. Since 1999, declines have slowed. In 2016, the SUID rate was 91.4 deaths per 100,000 live births.

  • Sudden infant death syndrome (SIDS) rates declined considerably from 130.3 deaths per 100,000 live births in 1990 to 38.0 deaths per 100,000 live births in 2016.

  • Unknown cause infant mortality rates remained unchanged from 1990 until 1998, when rates began to increase. In 2016, the unknown cause mortality rate in infants was 31.6 deaths per 100,000 live births.

  • Accidental suffocation and strangulation in bed (ASSB) mortality rates remained unchanged until the late 1990s. Rates started to increase beginning in 1997 and reached the highest rate at 23.1 deaths per 100,000 live births in 2015. In 2016, the rate was 21.8 deaths per 100,000 live births.

  • Codes for cause of death were defined according to the International Classification of Diseases, Ninth Revision (ICD-9) for 1984-1998, and the International Statistical Classification of Diseases and Related Health Problems, Tenth Revision (ICD-10) for 1999-2015. We defined cause of death by using the following underlying cause of death ICD-9 and ICD-10 codes: ASSB (E913.0; W75), SIDS (798.0; R95), and unknown cause, (799.9; R99). The SUID rate was the combination of ASSB, SIDS, and unknown cause deaths.

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Sudden Unexpected Infant Death by Race/Ethnicity, 2012-2015



SOURCE: CDC/NCHS, National Vital Statistics System, Period Linked Birth/Infant Death Data.

This stacked bar chart shows sudden unexpected infant death (SUID) rates by cause (sudden infant death syndrome, unknown cause, and accidental suffocation and strangulation in bed) and by race/ethnicity in the United States from 2012 through 2015.

  • SUID rates per 100,000 live births for American Indian/Alaska Native (196.9) and non-Hispanic black infants (177.3) were more than twice those of non-Hispanic white infants (84.5). SUID rates per 100,000 live births were lowest among Hispanic (51.7) and Asian/Pacific Islander infants (32.7).

  • Deaths due to SIDS accounted for the largest proportion of SUIDs for all racial/ethnic groups, ranging from 42% of SUID among non-Hispanic black infants to 47% of SUID among Asian/Pacific Islander and non-Hispanic white infants.

  • Accidental suffocation and strangulation in bed accounted for the smallest proportion of SUIDs for all racial groups, ranging from 20% of SUID among American Indian/Alaska Native, Hispanic, and Asian/Pacific Islander infants to 26% of SUID among non-Hispanic black infants.

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