• Resuscitation · Oct 2011

    Association between population density and reported incidence, characteristics and outcome after out-of-hospital cardiac arrest in Sweden.

    • A Strömsöe, L Svensson, A Claesson, J Lindkvist, A Lundström, and J Herlitz.
    • School of Health and Social Sciences, University of Dalarna, Falun, Sweden. ase@du.se
    • Resuscitation. 2011 Oct 1;82(10):1307-13.

    AimTo describe the reported incidence of out of hospital cardiac arrest (OHCA) and the characteristics and outcome after OHCA in relation to population density in Sweden.MethodsAll patients participating in the Swedish Cardiac Arrest Register between 2008 and 2009 in (a) 20 of 21 regions (n=6457) and in (b) 165 of 292 municipalities (n=3522) in Sweden, took part in the survey.ResultsThe regional population density varied between 3 and 310 inhabitants per km(2) in 2009. In 2008-2009, the number of reported cardiac arrests varied between 13 and 52 per 100,000 inhabitants and year. Survival to 1 month varied between 2% and 14% during the same period in different regions. With regard to population density, based on municipalities, bystander CPR (p=0.04) as well as cardiac etiology (p=0.002) were more frequent in less populated areas. Ambulance response time was longer in less populated areas (p<0.0001). There was no significant association between population density and survival to 1 month after OHCA or incidence (adjusted for age and gender) of OHCA.ConclusionThere was no significant association between population density and survival to 1 month after OHCA or incidence (adjusted for age and gender) of OHCA. However, bystander CPR, cardiac etiology and longer response times were more frequent in less populated areas.Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.

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