Effects of night-time and weekend admissions on in-hospital mortality in acute myocardial infarction patients in Japan.

BACKGROUND:Patients admitted to hospital during off-hours may experience poorer quality of care and clinical outcomes. However, few studies have examined the variations in clinical processes and outcomes across admission times and days of the week in acute myocardial infarction (AMI) patients. This...

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Main Authors: Seiko Mizuno, Susumu Kunisawa, Noriko Sasaki, Kiyohide Fushimi, Yuichi Imanaka
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2018-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC5774760?pdf=render
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author Seiko Mizuno
Susumu Kunisawa
Noriko Sasaki
Kiyohide Fushimi
Yuichi Imanaka
author_facet Seiko Mizuno
Susumu Kunisawa
Noriko Sasaki
Kiyohide Fushimi
Yuichi Imanaka
author_sort Seiko Mizuno
collection DOAJ
description BACKGROUND:Patients admitted to hospital during off-hours may experience poorer quality of care and clinical outcomes. However, few studies have examined the variations in clinical processes and outcomes across admission times and days of the week in acute myocardial infarction (AMI) patients. This study aimed to comparatively analyze the effect of weekend and weekday admissions stratified by admission time on in-hospital mortality in AMI patients. METHODS AND RESULTS:Using a large nationwide administrative database, we analyzed 103,908 AMI patients admitted to 639 Japanese acute care hospitals between April 2011 and March 2015. We divided patients into the following 4 groups: weekday daytime admissions, weekday night-time admissions, weekend daytime admissions, and weekend night-time admissions. A hierarchical logistic regression model was used to comparatively examine in-hospital mortality among the groups after adjusting for age, sex, ambulance use, Killip class, comorbidities, and the number of cardiologists in the admitting hospital. In addition, we also calculated and compared the adjusted odds ratios of various AMI therapies among the groups. The in-hospital mortality rate of weekend daytime admissions was higher than those admitted during other times (weekday daytime: 6.8%; weekday night-time; 6.5%, weekend daytime; 7.6%; weekend night-time: 6.6%; P < 0.001), even after adjusting for the covariates (adjusted odds ratio for weekend daytime admissions: 1.10; 95% confidence interval: 1.03-1.19). The prescription rates of guideline-based medications provided on the first day of admission were higher in night-time admissions than in daytime admissions. CONCLUSIONS:In-hospital mortality rates were higher in AMI patients admitted during weekend daytime hours when compared with patients admitted during other times. Furthermore, patients admitted during daytime hours had lower prescription rates of guideline-based medications. Our findings indicate that weekend daytime admissions may be a potential target for improvement in the Japanese healthcare system.
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spelling doaj.art-bc6de3e5d8084172ad5ae81a3003c36b2022-12-21T23:53:26ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-01131e019146010.1371/journal.pone.0191460Effects of night-time and weekend admissions on in-hospital mortality in acute myocardial infarction patients in Japan.Seiko MizunoSusumu KunisawaNoriko SasakiKiyohide FushimiYuichi ImanakaBACKGROUND:Patients admitted to hospital during off-hours may experience poorer quality of care and clinical outcomes. However, few studies have examined the variations in clinical processes and outcomes across admission times and days of the week in acute myocardial infarction (AMI) patients. This study aimed to comparatively analyze the effect of weekend and weekday admissions stratified by admission time on in-hospital mortality in AMI patients. METHODS AND RESULTS:Using a large nationwide administrative database, we analyzed 103,908 AMI patients admitted to 639 Japanese acute care hospitals between April 2011 and March 2015. We divided patients into the following 4 groups: weekday daytime admissions, weekday night-time admissions, weekend daytime admissions, and weekend night-time admissions. A hierarchical logistic regression model was used to comparatively examine in-hospital mortality among the groups after adjusting for age, sex, ambulance use, Killip class, comorbidities, and the number of cardiologists in the admitting hospital. In addition, we also calculated and compared the adjusted odds ratios of various AMI therapies among the groups. The in-hospital mortality rate of weekend daytime admissions was higher than those admitted during other times (weekday daytime: 6.8%; weekday night-time; 6.5%, weekend daytime; 7.6%; weekend night-time: 6.6%; P < 0.001), even after adjusting for the covariates (adjusted odds ratio for weekend daytime admissions: 1.10; 95% confidence interval: 1.03-1.19). The prescription rates of guideline-based medications provided on the first day of admission were higher in night-time admissions than in daytime admissions. CONCLUSIONS:In-hospital mortality rates were higher in AMI patients admitted during weekend daytime hours when compared with patients admitted during other times. Furthermore, patients admitted during daytime hours had lower prescription rates of guideline-based medications. Our findings indicate that weekend daytime admissions may be a potential target for improvement in the Japanese healthcare system.http://europepmc.org/articles/PMC5774760?pdf=render
spellingShingle Seiko Mizuno
Susumu Kunisawa
Noriko Sasaki
Kiyohide Fushimi
Yuichi Imanaka
Effects of night-time and weekend admissions on in-hospital mortality in acute myocardial infarction patients in Japan.
PLoS ONE
title Effects of night-time and weekend admissions on in-hospital mortality in acute myocardial infarction patients in Japan.
title_full Effects of night-time and weekend admissions on in-hospital mortality in acute myocardial infarction patients in Japan.
title_fullStr Effects of night-time and weekend admissions on in-hospital mortality in acute myocardial infarction patients in Japan.
title_full_unstemmed Effects of night-time and weekend admissions on in-hospital mortality in acute myocardial infarction patients in Japan.
title_short Effects of night-time and weekend admissions on in-hospital mortality in acute myocardial infarction patients in Japan.
title_sort effects of night time and weekend admissions on in hospital mortality in acute myocardial infarction patients in japan
url http://europepmc.org/articles/PMC5774760?pdf=render
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