Types of Infant Death

Sudden Unexpected Infant Deaths (SUID) encompasses all types of death where an infant dies suddenly and unexpectedly. SIDS is one type of SUID. The graph below shows the relationship between the two:

Sudden Infant Death Syndrome (SIDS) is the sudden death of an infant under one year of age which remains unexplained after performance of a complete autopsy, examination of the death scene and review of case history (NICHD 1990). SIDS is the first leading cause of death among infants aged 1–12 months.
Accidental Suffocation
Occurs when the flow of oxygen to a baby's lungs is obstructed accidentally, usually by food or blankets.