Article Text

Download PDFPDF

89 Relationship between the age and public access defibrillation with favourable neurological outcomes after ohca: a prospective, nationwide, population-based cohort study
  1. Kyoko Tsukigase1,
  2. Hideharu Tanaka1,2,
  3. Ryo Sagizaka2,
  4. Hiroshi Takyu2
  1. 1Research institute of Disaster management and EMS, Kokushikan University
  2. 2Department of EMS system, Graduate school of Kokushikan University, Nagayama, Tama city, Tokyo, Japan


Aim There is well known on elderly patients decreased good neurological outcome after resuscitation attempt. Aim: The aim of this study was to determine the relationship between the age and post-out-of-hospital cardiac arrest (OHCA) outcomes.

Method Nationwide retrospective cohort study. Settings; A total 1,176,363 OHCA patients (age&x2267;15 years) who were registered in the Japanese Utstein style registry from 2005 to 2014. The primary end point was return of spontaneous circulation (ROSC). The secondary endpoint was 1 month survival with favourable neurological outcomes (cerebral performance categories (CPC) scale; CPC 1–2). In the analysis, risk ratio (RR) and risk difference (RD) with age were calculated and evaluated.

Results Altogether, 2 96 097 cases (25.2%) were included in the study. According to the RR, we compared the ROSC and age of the patients get PAD at the scene or not. More than 90 years old age wasn’t made any differences (RR=1.55 (0.92–2.61)). And we also compared the CPC1–2. More than 86 years old age wasn’t made any differences. (RR=2.18 (0.92–5.16)). On the other hand, we compared the RD and got result of the ROSC was more than 72 years old and the CPC1–2 was 71 years old decreased the effectiveness and at the same age of RR made no differences.

Conclusion In Japan, some elderly patients could survive from OHCA with PAD. However, our result suggests that PAD is effective of coming back to the society in patients under 86 years of age.

Conflict of interest None

Funding None

This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See:

Statistics from

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.