Abstract
BackgroundThe influence of the Tokyo Summer Olympic/Paralympic Games on normal emergency medical system operations in Japan had not yet been fully elucidated. In this study, we examined whether out-of-hospital cardiac arrest (OHCA) patients treated during the Tokyo Olympic/Paralympic Games had differences in outcomes. MethodsUsing the nationwide JAAM-OHCA Registry, we evaluated the outcomes of OHCA patients admitted to the hospital during the Tokyo Olympic/Paralympic Games (July 23 to Aug. 8 and Aug. 24 to Sept. 5) in 2021, compared to those during same the dates in 2020 (Term 1: July 23 to Aug. 8 and Aug. 24 to Sept. 5), those during the pre-Olympic/Paralympic term during the same weekdays in the weeks before the event (Term 2: June. 18 to July. 4 and July. 6 to July. 18), and those during the post-Olympic/Paralympic term during the same weekdays in the weeks after the event (Term 3: Sept. 10 to Sept. 26 and Sept. 28 to Oct. 10). The primary outcome was 30-day survival, and multivariable logistic analysis was performed, adjusted for age and sex. ResultsA total of 3,111 OHCA patients were included in the study period (786 in the Olympic/Paralympic group, 774 in Term 1, 747 in Term 2, and 804 in Term 3). Crude 30-day survivals were 7.4% (58/786), 9.3% (72/774), 6.8% (51/747), and 8.2% (66/804), respectively. Using the Olympic/Paralympic group as a reference, multivariable logistic analysis revealed that 30-day survivals in Term 1 (OR 1.27 95% CI 0.88–1.83p = 0.20), Term 2 (OR 0.92 95% CI 0.62–1.36p = 0.67), and Term 3 (OR 1.10 95% CI 0.76–1.59p = 0.63) did not differ significantly. ConclusionsNo significant differences in 30-day survival for OHCA patients admitted during the Tokyo Summer Olympic/Paralympic Games were identified.
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