Katherine Underwood, Uma M Reddy, Hillary Hosier, Lena Sweeney, Katherine H Campbell, Xiao Xu
Mode of Delivery in Antepartum Singleton Stillbirths and Associated Risk Factors
American journal of perinatology
outofhospital cardiac arrest major health problem associated poor outcomes early recognition intervention critical patient survival bystander cardiopulmonary resuscitation cpr one factor among many associated improved survivalto examine temporal changes bystander resuscitation attempts survival 10year period several national initiatives taken increase rates bystander resuscitation improve advanced carepatients outofhospital cardiac arrest resuscitation attempted identified 2001 2010 nationwide danish cardiac arrest registry 29111 patients cardiac arrest excluded presumed noncardiac cause arrest n 7390 cardiac arrests witnessed emergency medical services personnel n 2253 leaving study population 19468 patientstemporal trends bystander cpr bystander defibrillation 30day survival 1year survivalthe median age patients 72 years 674 men bystander cpr increased significantly study period 211 95 ci 188234 2001 449 95 ci 426471 2010 p 001 whereas use defibrillation bystanders remained low 11 95 ci 0619 2001 22 95 ci 1529 2010 p 003 patients achieved survival hospital arrival 79 95 ci 6495 2001 218 95 ci 198238 2010 p 001 also 30day survival improved 35 95 ci 2545 2001 108 95 ci 94122 2010 p 001 1year survival 29 95 ci 2039 2001 102 95 ci 89116 2010 p 001 despite decrease incidence outofhospital cardiac arrests study period 404 344 per 100000 persons 2001 2010 respectively p 002 number survivors per 100000 persons increased significantly p 001 entire study period bystander cpr positively associated 30day survival regardless witnessed status 30day survival nonwitnessed cardiac arrest 43 95 ci 3452 bystander cpr 10 95 ci 0813 without odds ratio 438 95 ci 317606 witnessed arrest corresponding values 194 95 ci 181207 vs 61 95 ci 5467 odds ratio 374 95 ci 326428in denmark 2001 2010 increase survival following outofhospital cardiac arrest significantly associated concomitant increase bystander cpr cooccurrence related initiatives causal relationship remains uncertain