NDLI: Seasonal variation of stroke incidence in Japan for 35631 stroke patients in the Japanese Standard Stroke Registry, 1998-2007.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Takizawa, Shunya Shibata, Takeo Takagi, Shigeharu Kobayashi, Shotai
Spatial Coverage	Japan
Description	Country affiliation: Japan Author Affiliation: Takizawa S ( Department of Neurology, Tokai University School of Medicine, Kanagawa, Japan. shun@is.icc.u-tokai.ac.jp)
Abstract	BACKGROUND: Seasonal variation of stroke incidence has been reported in many countries. The present study was designed to elucidate seasonal and monthly variations in the incidence of subtypes of acute ischemic stroke and hypertensive hemorrhagic stroke using the Japanese Standard Stroke Registry Study (JSSRS) database, which is currently the world's largest hospital-based stroke database, accumulating records from 163 Japanese institutions. METHODS: Among 47,782 patients with acute stroke registered with JSSRS between 1998 and 2007, we selected 35,631 for analysis (patients with ischemic or hemorrhagic stroke of unknown etiology were excluded). A simple moving average was used to examine monthly variation of stroke incidence. We also examined seasonal variation of ischemic stroke subtypes. RESULTS AND CONCLUSIONS: Monthly variation in incidence of all ischemic stroke was significant (P < .001). Noncardioembolic ischemic stroke was more frequent in summer than in winter (P < .001). Lacunar stroke showed higher incidence in summer than in winter (P < .001), although the increase did not reach significance for atherothrombotic stroke (P = .057). In contrast, cardioembolic stroke (P < .001) and hemorrhagic stroke (P < .001) occurred more frequently in winter than in summer. Hemorrhagic stroke showed a regional difference of incidence between northern and southern Japan. There is a temporal variation of stroke incidence in Japan, with different patterns of variation depending on stroke subtype. These findings may help in developing strategies for preventing stroke.
File Format	HTM / HTML
ISSN	10523057
Issue Number	1
Volume Number	22
e-ISSN	15328511
Journal	Journal of Stroke and Cerebrovascular Diseases
Language	English
Publisher	Elsevier
Publisher Date	2013-01-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Chi-square Distribution Residence Characteristics Research Support, Non-u.s. Gov't Brain Ischemia Comparative Study Humans Middle Aged Male Epidemiology Journal Article Incidence Time Factors Discipline Cardiology Classification Female Registries Intracranial Hemorrhage, Hypertensive Seasons Diagnosis Stroke Japan Risk Factors Ethnology Aged, 80 And Over Asian Continental Ancestry Group Aged
Content Type	Text
Resource Type	Article
Subject	Rehabilitation Neurology (clinical) Surgery Cardiology and Cardiovascular Medicine

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Ischemic stroke subtypes in a Japanese population: Takashima Stroke Registry, 1988-2004.

Higher stroke incidence in the spring season regardless of conventional risk factors: Takashima Stroke Registry, Japan, 1988-2001.

Coexistent extra- and intracranial stenosis, cervical atherosclerosis, and abnormal ankle brachial index in acute ischemic stroke.

Ethnic group disparities in 10-year trends in stroke incidence and vascular risk factors: the South London Stroke Register (SLSR).

Ischaemic stroke in young Asian women: incomplete investigations and geographical bias.

Polymorphisms in the lymphotoxin alpha gene and the risk of ischemic stroke in the Japanese population. The Fukuoka Stroke Registry and the Hisayama Study.

Alkaline phosphatase and risk of stroke among Japanese: the Circulatory Risk in Communities Study (CIRCS).

Recurrence risk after noncardioembolic mild ischemic stroke in a Japanese population.

Feasibility and safety of intravenous thrombolysis in multiethnic Asian stroke patients in Singapore.

Seasonal variation of stroke incidence in Japan for 35631 stroke patients in the Japanese Standard Stroke Registry, 1998-2007.

Similar Documents

Ischemic stroke subtypes in a Japanese population: Takashima Stroke Registry, 1988-2004.

Higher stroke incidence in the spring season regardless of conventional risk factors: Takashima Stroke Registry, Japan, 1988-2001.

Coexistent extra- and intracranial stenosis, cervical atherosclerosis, and abnormal ankle brachial index in acute ischemic stroke.

Ethnic group disparities in 10-year trends in stroke incidence and vascular risk factors: the South London Stroke Register (SLSR).

Ischaemic stroke in young Asian women: incomplete investigations and geographical bias.

Polymorphisms in the lymphotoxin alpha gene and the risk of ischemic stroke in the Japanese population. The Fukuoka Stroke Registry and the Hisayama Study.

Alkaline phosphatase and risk of stroke among Japanese: the Circulatory Risk in Communities Study (CIRCS).

Recurrence risk after noncardioembolic mild ischemic stroke in a Japanese population.

Feasibility and safety of intravenous thrombolysis in multiethnic Asian stroke patients in Singapore.

Seasonal variation of stroke incidence in Japan for 35631 stroke patients in the Japanese Standard Stroke Registry, 1998-2007.