Outcomes after out-of-hospital cardiac arrests by anaphylaxis: A nationwide population-based observational study.

Aim: The objective of this study was to focus on outcomes of anaphylaxis-associated out-of hospital cardiac arrest (OHCA) in non-cardiac cases.

Methods: All residents with OHCA due to non-cardiac cause in Japan from 2013 to 2015 were included for analysis. Propensity score matching and logistic regression analyses were used to assess outcome-related factors in anaphylaxis cases and non-anaphylaxis cases.