evidence: Among reports of death in children with autopsy findings and/or death certificates available for review, the most common causes of death by ICD-10 major group (Table 2) included SIDS and diseases of the respiratory system, with pneumonia as the most common cause of death in the respiratory category. "Injury, poisoning and certain other consequences of external causes" were noted in 96 reports, with asphyxiation being the most common cause of death in this category. Septicemia or sepsis was the fourth most common cause of death. In 146 of 1244 (11.7%) reports, the autopsy report or death certificate stated the cause of death was undetermined. SIDS reports progressively decreased in frequency from a peak in 1998 (n = 50) to a nadir in 2011 (n = 21). Most SIDS cases were among infants 2–4 months of age (n = 398 [66%]) and mostly among males (n = 375 [62.2%]) (Table 3). SIDS reports were most common among children who had received DTaP-HepB-IPV (diphtheria and tetanus toxoids and acellular pertussis adsorbed, hepatitis B, and inactivated poliovirus vaccine) plus Haemophilus influenzae type b (Hib) plus 7- or 13-valent pneumococcal conjugate vaccine (PCV7 or PCV13) (11.6%) followed by HepB vaccine given alone (9%).