Geographical Differences and the National Meeting Effect in Patients with Out-of-Hospital Cardiac Arrests: A JCS-ReSS Study Report

International Journal of Environmental Research and Public Health
Tetsuya YumotoHiroyuki Tsutsui


The "national meeting effect" refers to worse patient outcomes when medical professionals attend academic meetings and hospitals have reduced staffing. The aim of this study was to examine differences in outcomes of patients with out-of-hospital cardiac arrest (OHCA) admitted during, before, and after meeting days according to meeting location and considering regional variation of outcomes, which has not been investigated in previous studies. Using data from a nationwide, prospective, population-based, observational study in Japan, we analyzed adult OHCA patients who underwent resuscitation attempts between 2011 and 2015. Favorable one-month neurological outcomes were compared among patients admitted during the relevant annual meeting dates of three national scientific societies, those admitted on identical days the week before, and those one week after the meeting dates. We developed a multivariate logistic regression model after adjusting for confounding factors, including meeting location and regional variation (better vs. worse outcome areas), using the "during meeting days" group as the reference. A total of 40,849 patients were included in the study, with 14,490, 13,518, and 12,841 patients hospitalized during, before, an...Continue Reading


Mar 20, 2010·The New England Journal of Medicine·Tetsuhisa KitamuraUNKNOWN Implementation Working Group for the All-Japan Utstein Registry of the Fire and Disaster Management Agency
Oct 5, 2012·Circulation·Tetsuhisa KitamuraUNKNOWN Japanese Circulation Society Resuscitation Science Study Group
May 11, 2016·Critical Care : the Official Journal of the Critical Care Forum·Yosuke MatsumuraUNKNOWN SOS-KANTO 2012 study group
Nov 15, 2017·Critical Care Medicine·Megan GallowayDavid Harrison
Mar 11, 2018·Journal of the American Heart Association·Anupam B JenaJohn Romley
Mar 15, 2018·Lancet·Christian HassagerDavid Hildick-Smith
Sep 22, 2018·Critical Care : the Official Journal of the Critical Care Forum·Kazuhiro SugiyamaYuichi Hamabe
Jan 19, 2019·Transplantation Direct·Dina Abdelwahab ElhamahmiIsaac E Hall

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