Impact of nighttime and weekends on outcomes of emergency trauma patients: A nationwide observational study in Japan

Hirose, Tomoya; Kitamura, Tetsuhisa; Katayama, Yusuke; Sado, Junya; Kiguchi, Takeyuki; Matsuyama, Tasuku; Kiyohara, Kosuke; Takahashi, Hiroki; Tachino, Jotaro; Nakagawa, Yuko; Mizushima, Yasuaki; Shimazu, Takeshi

doi:https://doi.org/10.1097/MD.0000000000018687

Impact of nighttime and weekends on outcomes of emergency trauma patients: A nationwide observational study in Japan

Hirose, Tomoya; Kitamura, Tetsuhisa; Katayama, Yusuke et al.

Medicine (United States), 2020, 99(1), e18687

Number of Access:1,647（2025-10-21 11:11 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/78376

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Title	Impact of nighttime and weekends on outcomes of emergency trauma patients: A nationwide observational study in Japan
Creator	NRID 1000070597509 1000070597509 researchmap permalink tomoyahirose tomoyahirose Scopus Author ID 41861413300 41861413300 CreatorName Hirose, Tomoya
	NRID 1000030639810 1000030639810 ORCID 0000-0003-0107-0580 0000-0003-0107-0580 researchmap permalink Kitamura_T Kitamura_T Scopus Author ID 22234282700 22234282700 CreatorName Kitamura, Tetsuhisa
	NRID 1000050747144 1000050747144 ORCID 0000-0003-2585-4259 0000-0003-2585-4259 researchmap permalink orion2013 orion2013 Scopus Author ID 56470235000 56470235000 CreatorName Katayama, Yusuke
	CreatorName Sado, Junya
	NRID 1000030724380 1000030724380 CreatorName Kiguchi, Takeyuki
	NRID 1000050829025 1000050829025 CreatorName Matsuyama, Tasuku
	NRID 1000080581834 1000080581834 CreatorName Kiyohara, Kosuke
	NRID 1000030609590 1000030609590 CreatorName Takahashi, Hiroki
	NRID 1000050747152 1000050747152 ORCID 0000-0002-0423-7713 0000-0002-0423-7713 researchmap permalink jotarotachino jotarotachino Scopus Author ID 57203882578 57203882578 CreatorName Tachino, Jotaro
	NRID 1000040362719 1000040362719 CreatorName Nakagawa, Yuko
	CreatorName Mizushima, Yasuaki
	NRID 1000050196474 1000050196474 CreatorName Shimazu, Takeshi
Subject	mortality
	night
	registry
	trauma
	weekend
Description	Hirose T, Kitamura T, Katayama Y, Sado J, Kiguchi T, Matsuyama T, Kiyohara K, Takahashi H, Tachino J, Nakagawa Y, Mizushima Y, Shimazu T. Impact of nighttime and weekends on outcomes of emergency trauma patients: A nationwide observational study in Japan. Medicine 2020;99:1(e18687).
Abstract	The impact of time of day or day of week on the survival of emergency trauma patients is still controversial. The purpose of this study was to evaluate the outcomes of these patients according to time of day or day of week of emergency admission by using data from the nationwide Japan Trauma Data Bank (JTDB).This study enrolled 236,698 patients registered in the JTDB database from 2004 to 2015, and defined daytime as 09:00 am to 16:59 pm and nighttime as 17:00 pm to 08:59 am, weekdays as Monday to Friday, and weekends as Saturday, Sunday, and national holidays. The outcome measures were death in the emergency room (ER) and discharge to death.In total, 170,622 patients were eligible for our analysis. In a multivariable logistic regression adjusted for confounding factors, both death in the ER and death at hospital discharge were significantly lower during the daytime than at nighttime (623/76,162 [0.82%] vs 954/94,460 [1.01%]; adjusted odds ratio [AOR] 0.79; 95% confidence interval [CI] 0.71-0.88 and 5765/76,162 [7.57%] vs 7270/94,460 [7.70%]; AOR 0.88; 95% CI 0.85-0.92). In contrast, the weekdays/weekends was not significantly related to either death in the ER (1058/114,357 [0.93%] vs 519/56,265 [0.92%]; AOR 0.95; 95% CI 0.85-1.06) or death at hospital discharge (8975/114,357 [7.85%] vs 4060/56,265 [7.22%]; AOR 1.02; 95% CI 0.97-1.06).In this population of emergency trauma patients in Japan, both death in the ER and death at hospital discharge were significantly lower during the daytime than at night, but the weekdays/weekends was not associated with outcomes of these patients.
Publisher	Lippincott Williams and Wilkins
Source Title	Medicine (United States)
Volume (Issue)	99(1)
Page	e18687
Date of Issued	2020-01
Language	English
Handle URL	https://hdl.handle.net/11094/78376
PISSN	00257974
eISSN	15365964
NCID	AA12542695
Relation.isIdenticalTo	DOI (Publisher Version) https://doi.org/10.1097/MD.0000000000018687
Relation.isIdenticalTo	PMID 31895836
Access Rights	open access
CopyRight	© 2020 the Author(s). Published by Wolters Kluwer Health, Inc. This article is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
oaire:version	Version of Record
Category	学術雑誌論文 Journal Article

Resource Type	journal article
Local Type	Journal Article
DCMI Type	Text
DCTERMS.bibliographicCitation	Medicine (United States). 2020, 99(1), p. e18687
DC.title	Impact of nighttime and weekends on outcomes of emergency trauma patients: A nationwide observational study in Japan
DC.creator	Hirose, Tomoya
	Kitamura, Tetsuhisa
	Katayama, Yusuke
	Sado, Junya
	Kiguchi, Takeyuki
	Matsuyama, Tasuku
	Kiyohara, Kosuke
	Takahashi, Hiroki
	Tachino, Jotaro
	Nakagawa, Yuko
	Mizushima, Yasuaki
	Shimazu, Takeshi
DC.publisher	Lippincott Williams and Wilkins
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2020-01
DC.identifier	https://doi.org/10.1097/MD.0000000000018687
DC.subject	mortality
	night
	registry
	trauma
	weekend
DC.description	Hirose T, Kitamura T, Katayama Y, Sado J, Kiguchi T, Matsuyama T, Kiyohara K, Takahashi H, Tachino J, Nakagawa Y, Mizushima Y, Shimazu T. Impact of nighttime and weekends on outcomes of emergency trauma patients: A nationwide observational study in Japan. Medicine 2020;99:1(e18687).
DCTERMS.abstract	The impact of time of day or day of week on the survival of emergency trauma patients is still controversial. The purpose of this study was to evaluate the outcomes of these patients according to time of day or day of week of emergency admission by using data from the nationwide Japan Trauma Data Bank (JTDB).This study enrolled 236,698 patients registered in the JTDB database from 2004 to 2015, and defined daytime as 09:00 am to 16:59 pm and nighttime as 17:00 pm to 08:59 am, weekdays as Monday to Friday, and weekends as Saturday, Sunday, and national holidays. The outcome measures were death in the emergency room (ER) and discharge to death.In total, 170,622 patients were eligible for our analysis. In a multivariable logistic regression adjusted for confounding factors, both death in the ER and death at hospital discharge were significantly lower during the daytime than at nighttime (623/76,162 [0.82%] vs 954/94,460 [1.01%]; adjusted odds ratio [AOR] 0.79; 95% confidence interval [CI] 0.71-0.88 and 5765/76,162 [7.57%] vs 7270/94,460 [7.70%]; AOR 0.88; 95% CI 0.85-0.92). In contrast, the weekdays/weekends was not significantly related to either death in the ER (1058/114,357 [0.93%] vs 519/56,265 [0.92%]; AOR 0.95; 95% CI 0.85-1.06) or death at hospital discharge (8975/114,357 [7.85%] vs 4060/56,265 [7.22%]; AOR 1.02; 95% CI 0.97-1.06).In this population of emergency trauma patients in Japan, both death in the ER and death at hospital discharge were significantly lower during the daytime than at night, but the weekdays/weekends was not associated with outcomes of these patients.
DC.rights	© 2020 the Author(s). Published by Wolters Kluwer Health, Inc. This article is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
DC.format	78376
citation_title	Impact of nighttime and weekends on outcomes of emergency trauma patients: A nationwide observational study in Japan
citation_author	Hirose, Tomoya
	Kitamura, Tetsuhisa
	Katayama, Yusuke
	Sado, Junya
	Kiguchi, Takeyuki
	Matsuyama, Tasuku
	Kiyohara, Kosuke
	Takahashi, Hiroki
	Tachino, Jotaro
	Nakagawa, Yuko
	Mizushima, Yasuaki
	Shimazu, Takeshi
citation_publisher	Lippincott Williams and Wilkins
citation_language	English
citation_date	2020-01
citation_journal_title	Medicine (United States)
citation_volume	99
citation_issue	1
citation_firstpage	e18687
citation_doi	https://doi.org/10.1097/MD.0000000000018687
citation_pmid	31895836
citation_public_url	https://hdl.handle.net/11094/78376

Impact of nighttime and weekends on outcomes of emergency trauma patients: A nationwide observational study in Japan

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