Mortality of major cardiovascular emergencies among patients admitted to hospitals on weekends as compared with weekdays in Taiwan

Abstract Background Several studies have found a so-called weekend effect that patients admitted at the weekends had worse clinical outcomes than patients admitted at the weekdays. We performed this retrospective cohort study to explore the weekend effect in four major cardiovascular emergencies in...

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Main Authors: Chao-Lun Lai, Raymond Nien-Chen Kuo, Ting-Chuan Wang, K. Arnold Chan
Format: Article
Language:English
Published: BMC 2021-05-01
Series:BMC Health Services Research
Subjects:
Online Access:https://doi.org/10.1186/s12913-021-06553-7
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author Chao-Lun Lai
Raymond Nien-Chen Kuo
Ting-Chuan Wang
K. Arnold Chan
author_facet Chao-Lun Lai
Raymond Nien-Chen Kuo
Ting-Chuan Wang
K. Arnold Chan
author_sort Chao-Lun Lai
collection DOAJ
description Abstract Background Several studies have found a so-called weekend effect that patients admitted at the weekends had worse clinical outcomes than patients admitted at the weekdays. We performed this retrospective cohort study to explore the weekend effect in four major cardiovascular emergencies in Taiwan. Methods The Taiwan National Health Insurance (NHI) claims database between 2005 and 2015 was used. We extracted 3811 incident cases of ruptured aortic aneurysm, 184,769 incident cases of acute myocardial infarction, 492,127 incident cases of ischemic stroke, and 15,033 incident cases of pulmonary embolism from 9,529,049 patients having at least one record of hospitalization in the NHI claims database within 2006 ~ 2014. Patients were classified as weekends or weekdays admission groups. Dates of in-hospital mortality and one-year mortality were obtained from the Taiwan National Death Registry. Results We found no difference in in-hospital mortality between weekend group and weekday group in patients with ruptured aortic aneurysm (45.4% vs 45.3%, adjusted odds ratio [OR] 1.01, 95% confidence interval [CI] 0.87–1.17, p = 0.93), patients with acute myocardial infarction (15.8% vs 16.2%, adjusted OR 0.98, 95% CI 0.95–1.00, p = 0.10), patients with ischemic stroke (4.1% vs 4.2%, adjusted OR 0.99, 95% CI 0.96–1.03, p = 0.71), and patients with pulmonary embolism (14.6% vs 14.6%, adjusted OR 1.02, 95% CI 0.92–1.15, p = 0.66). The results remained for 1 year in all the four major cardiovascular emergencies. Conclusions We found no difference in either short-term or long-term mortality between patients admitted on weekends and patients admitted on weekdays in four major cardiovascular emergencies in Taiwan.
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spelling doaj.art-97a702911d0b4eb795460b6b5ea475e52022-12-21T20:41:08ZengBMCBMC Health Services Research1472-69632021-05-012111710.1186/s12913-021-06553-7Mortality of major cardiovascular emergencies among patients admitted to hospitals on weekends as compared with weekdays in TaiwanChao-Lun Lai0Raymond Nien-Chen Kuo1Ting-Chuan Wang2K. Arnold Chan3Department of Internal Medicine, National Taiwan University Hospital Hsin-Chu BranchInstitute of Health Policy and Management, College of Public Health, National Taiwan UniversityHealth Data Research Center, National Taiwan UniversityHealth Data Research Center, National Taiwan UniversityAbstract Background Several studies have found a so-called weekend effect that patients admitted at the weekends had worse clinical outcomes than patients admitted at the weekdays. We performed this retrospective cohort study to explore the weekend effect in four major cardiovascular emergencies in Taiwan. Methods The Taiwan National Health Insurance (NHI) claims database between 2005 and 2015 was used. We extracted 3811 incident cases of ruptured aortic aneurysm, 184,769 incident cases of acute myocardial infarction, 492,127 incident cases of ischemic stroke, and 15,033 incident cases of pulmonary embolism from 9,529,049 patients having at least one record of hospitalization in the NHI claims database within 2006 ~ 2014. Patients were classified as weekends or weekdays admission groups. Dates of in-hospital mortality and one-year mortality were obtained from the Taiwan National Death Registry. Results We found no difference in in-hospital mortality between weekend group and weekday group in patients with ruptured aortic aneurysm (45.4% vs 45.3%, adjusted odds ratio [OR] 1.01, 95% confidence interval [CI] 0.87–1.17, p = 0.93), patients with acute myocardial infarction (15.8% vs 16.2%, adjusted OR 0.98, 95% CI 0.95–1.00, p = 0.10), patients with ischemic stroke (4.1% vs 4.2%, adjusted OR 0.99, 95% CI 0.96–1.03, p = 0.71), and patients with pulmonary embolism (14.6% vs 14.6%, adjusted OR 1.02, 95% CI 0.92–1.15, p = 0.66). The results remained for 1 year in all the four major cardiovascular emergencies. Conclusions We found no difference in either short-term or long-term mortality between patients admitted on weekends and patients admitted on weekdays in four major cardiovascular emergencies in Taiwan.https://doi.org/10.1186/s12913-021-06553-7Mortality; weekend; weekdayCardiovascular emergencyAortic aneurysmMyocardial infarctionIschemic strokePulmonary embolism
spellingShingle Chao-Lun Lai
Raymond Nien-Chen Kuo
Ting-Chuan Wang
K. Arnold Chan
Mortality of major cardiovascular emergencies among patients admitted to hospitals on weekends as compared with weekdays in Taiwan
BMC Health Services Research
Mortality; weekend; weekday
Cardiovascular emergency
Aortic aneurysm
Myocardial infarction
Ischemic stroke
Pulmonary embolism
title Mortality of major cardiovascular emergencies among patients admitted to hospitals on weekends as compared with weekdays in Taiwan
title_full Mortality of major cardiovascular emergencies among patients admitted to hospitals on weekends as compared with weekdays in Taiwan
title_fullStr Mortality of major cardiovascular emergencies among patients admitted to hospitals on weekends as compared with weekdays in Taiwan
title_full_unstemmed Mortality of major cardiovascular emergencies among patients admitted to hospitals on weekends as compared with weekdays in Taiwan
title_short Mortality of major cardiovascular emergencies among patients admitted to hospitals on weekends as compared with weekdays in Taiwan
title_sort mortality of major cardiovascular emergencies among patients admitted to hospitals on weekends as compared with weekdays in taiwan
topic Mortality; weekend; weekday
Cardiovascular emergency
Aortic aneurysm
Myocardial infarction
Ischemic stroke
Pulmonary embolism
url https://doi.org/10.1186/s12913-021-06553-7
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AT tingchuanwang mortalityofmajorcardiovascularemergenciesamongpatientsadmittedtohospitalsonweekendsascomparedwithweekdaysintaiwan
AT karnoldchan mortalityofmajorcardiovascularemergenciesamongpatientsadmittedtohospitalsonweekendsascomparedwithweekdaysintaiwan