Geographical differences and the national meeting effect in patients with out-of-hospital cardiac arrests: A JCS–ReSS study report

behalf of the Japanese Circulation Society Resuscitation Science Study (JCS-ReSS) Group

Research output: Contribution to journalArticle

Abstract

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, and after meeting days, respectively. The rates of favorable neurological outcomes during, before, and after meeting days was 1.7, 1.6, and 1.8%, respectively. After adjusting for covariates, favorable neurological outcomes did not differ among the three groups (adjusted OR (95% CI) of the before and after meeting dates groups was 1.03 (0.83–1.28) and 1.01 (0.81–1.26), respectively. The “national meeting effect” did not exist in OHCA patients in Japan, even after comparing data during, before, and after meeting dates and considering meeting location and regional variation.

Original languageEnglish
Article number5130
JournalInternational journal of environmental research and public health
Volume16
Issue number24
DOIs
Publication statusPublished - Dec 2 2019

Fingerprint

Out-of-Hospital Cardiac Arrest
Group Processes
Japan
Logistic Models
Resuscitation
Observational Studies

Keywords

  • Cardiopulmonary resuscitation
  • National meeting
  • Out-of-hospital cardiac arrest
  • Outcome

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

Cite this

Geographical differences and the national meeting effect in patients with out-of-hospital cardiac arrests : A JCS–ReSS study report. / behalf of the Japanese Circulation Society Resuscitation Science Study (JCS-ReSS) Group.

In: International journal of environmental research and public health, Vol. 16, No. 24, 5130, 02.12.2019.

Research output: Contribution to journalArticle

@article{f1e6e4409d754f9a900a8c1e362abce9,
title = "Geographical differences and the national meeting effect in patients with out-of-hospital cardiac arrests: A JCS–ReSS study report",
abstract = "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, and after meeting days, respectively. The rates of favorable neurological outcomes during, before, and after meeting days was 1.7, 1.6, and 1.8{\%}, respectively. After adjusting for covariates, favorable neurological outcomes did not differ among the three groups (adjusted OR (95{\%} CI) of the before and after meeting dates groups was 1.03 (0.83–1.28) and 1.01 (0.81–1.26), respectively. The “national meeting effect” did not exist in OHCA patients in Japan, even after comparing data during, before, and after meeting dates and considering meeting location and regional variation.",
keywords = "Cardiopulmonary resuscitation, National meeting, Out-of-hospital cardiac arrest, Outcome",
author = "{behalf of the Japanese Circulation Society Resuscitation Science Study (JCS-ReSS) Group} and Tetsuya Yumoto and Hiromichi Naito and Takashi Yorifuji and Yoshio Tahara and Naohiro Yonemoto and Hiroshi Nonogi and Ken Nagao and Takanori Ikeda and Naoki Sato and Hiroyuki Tsutsui",
year = "2019",
month = "12",
day = "2",
doi = "10.3390/ijerph16245130",
language = "English",
volume = "16",
journal = "International Journal of Environmental Research and Public Health",
issn = "1661-7827",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "24",

}

TY - JOUR

T1 - Geographical differences and the national meeting effect in patients with out-of-hospital cardiac arrests

T2 - A JCS–ReSS study report

AU - behalf of the Japanese Circulation Society Resuscitation Science Study (JCS-ReSS) Group

AU - Yumoto, Tetsuya

AU - Naito, Hiromichi

AU - Yorifuji, Takashi

AU - Tahara, Yoshio

AU - Yonemoto, Naohiro

AU - Nonogi, Hiroshi

AU - Nagao, Ken

AU - Ikeda, Takanori

AU - Sato, Naoki

AU - Tsutsui, Hiroyuki

PY - 2019/12/2

Y1 - 2019/12/2

N2 - 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, and after meeting days, respectively. The rates of favorable neurological outcomes during, before, and after meeting days was 1.7, 1.6, and 1.8%, respectively. After adjusting for covariates, favorable neurological outcomes did not differ among the three groups (adjusted OR (95% CI) of the before and after meeting dates groups was 1.03 (0.83–1.28) and 1.01 (0.81–1.26), respectively. The “national meeting effect” did not exist in OHCA patients in Japan, even after comparing data during, before, and after meeting dates and considering meeting location and regional variation.

AB - 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, and after meeting days, respectively. The rates of favorable neurological outcomes during, before, and after meeting days was 1.7, 1.6, and 1.8%, respectively. After adjusting for covariates, favorable neurological outcomes did not differ among the three groups (adjusted OR (95% CI) of the before and after meeting dates groups was 1.03 (0.83–1.28) and 1.01 (0.81–1.26), respectively. The “national meeting effect” did not exist in OHCA patients in Japan, even after comparing data during, before, and after meeting dates and considering meeting location and regional variation.

KW - Cardiopulmonary resuscitation

KW - National meeting

KW - Out-of-hospital cardiac arrest

KW - Outcome

UR - http://www.scopus.com/inward/record.url?scp=85076758891&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85076758891&partnerID=8YFLogxK

U2 - 10.3390/ijerph16245130

DO - 10.3390/ijerph16245130

M3 - Article

C2 - 31888125

AN - SCOPUS:85076758891

VL - 16

JO - International Journal of Environmental Research and Public Health

JF - International Journal of Environmental Research and Public Health

SN - 1661-7827

IS - 24

M1 - 5130

ER -