Sudden infant death syndrome (SIDS) and other sleep-related causes of infant mortality have several known risk factors, but little is known if these factors change for different age groups. In a new study in the August 2014 Pediatrics, “Sleep Environment Risks for Younger and Older Infants,” published online July 14, researchers studied sleep-related infant deaths from 24 states from 2004-2012 in the case reporting system of the National Center for the Review and Prevention of Child Deaths. Cases were divided by younger (0-3 months) and older (4 months to one year) infants. In a total of 8,207 deaths analyzed, majority of the infants (69 percent) were bed-sharing at the time of death. Fifty-eight percent were male, and most deaths occurred in non-Hispanic whites. Younger infants were more likely bed-sharing (73.8 percent vs. 58.9 percent), sleeping on an adult bed or on/near a person, while older infants were more likely found prone with objects, such as blankets or stuffed animals in the sleep area. Researchers conclude that sleep-related infant deaths risk factors are different for younger and older infants. Parents should follow the American Academy of Pediatrics (AAP) recommendations for a safe sleep environment and understand that different factors reflect risk at different developmental stages.
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