TABLE 2.

Distribution of Adverse Events and Preventable Adverse Events by Type: Children and Nonelderly Adults

TypeProportion (%) of Adverse Events (95% CI)*Proportion (%) of Preventable Adverse Events (95% CI)Proportion of Preventable Adverse Events (95% CI) in Nonelderly Adults
Birth related29.6 (17.1–42.2)32.2 (15.8–48.6)
Diagnostic21.3 (12.5–30.1)30.4 (14.3–46.5)10.1 (5.2–15.0)
Medication19.1 (12.1–26.1)21.3 (6.9–35.7)6.6 (2.5–10.4)
Surgical16.3 (4.4–28.2)3.5 (<0–9.9)54.6 (47.3–61.9)
Postpartum6.1 (1.9–10.3)8.7 (<0–18.6)5.5 (<0–11.0)
Therapeutic0.8 (0.4–1.2)2.8 (<0–8.6)5.7 (11.9–9.5)
Nonsurgical procedures7.7 (<0–17.2)1.1 (<0–4.8)9.6 (5.4–13.8)
  • * Sum may be >100% as a result of rounding.