Sudden death age distribution in the Harris County Institute of Forensic Sciences SIDS/SUD cohort (2004–2012). (A) Age distribution of SIDS victims (0–12 mo, n = 346). The majority of the unexplained death decedents in the cohort were under the age of 1. Distribution of age was unimodal, skewed right, with the highest frequency of death occurring at 2 mo old (95% CI: 2.6–3.0 mo; bin range = 1 mo). (B) Age distribution of SUD victims (1–40 yr, n = 83). The distribution of age was random for unexplained death decedents, with the highest frequency of occurrence in young children between 1 and 2 yr of age (95% CI: 15.0–20.3 yr; bin range = 1 yr). Note the fivefold y-axis scale difference between A and B.
