Trends in Outcomes for Out-of-Hospital Cardiac Arrest by Age in Japan: An Observational Study

• Published in: Medicine (Baltimore) 2015-12, Vol.94 (49), p.e2049-e2049
• Main Authors: Fukuda, Tatsuma, Ohashi-Fukuda, Naoko, Matsubara, Takehiro, Doi, Kent, Kitsuta, Yoichi, Nakajima, Susumu, Yahagi, Naoki
• Format: Article
• Language: English
• Subjects: Adolescent; Adult; Age Factors; Aged; Aged, 80 and over; Cardiopulmonary Resuscitation; Emergency Medical Services - trends; Female; Glasgow Outcome Scale; Humans; Japan - epidemiology; Male; Middle Aged; Observational Study; Out-of-Hospital Cardiac Arrest - epidemiology; Out-of-Hospital Cardiac Arrest - mortality; Out-of-Hospital Cardiac Arrest - therapy; Outcome Assessment, Health Care; Young Adult
• ISSN: 0025-7974; 1536-5964
• DOI: 10.1097/MD.0000000000002049

Population aging has rapidly advanced throughout the world and the elderly accounting for out-of-hospital cardiac arrest (OHCA) has increased yearly.We identified all adults who experienced an out-of-hospital cardiac arrest in the All-Japan Utstein Registry of the Fire and Disaster Management Agency, a prospective, population-based clinical registry, between 2005 and 2010. Using multivariable regression, we examined temporal trends in outcomes for OHCA patients by age, as well as the influence of advanced age on outcomes. The primary outcome was a favorable neurological outcome at 1 month after OHCA.Among 605,505 patients, 454,755 (75.1%) were the elderly (≥65 years), and 154,785 (25.6%) were the oldest old (≥85 years). Although neurological outcomes were worse as the age group was older (P