Seasonal Variation in Ischemic Stroke Incidence and Association with Climate: A Six‐Year Population‐Based Study

2008 ◽  
Vol 25 (6) ◽  
pp. 938-949 ◽  
Author(s):  
Hsin‐Chien Lee ◽  
Chaur‐Jong Hu ◽  
Chin‐Shyan Chen ◽  
Herng‐Ching Lin
Keyword(s):  
Ischemic Stroke ◽  
Seasonal Variation ◽  
Population Based ◽  
Population Based Study ◽  
Stroke Incidence

scholarly journals Seasonal Variation in Incidence of Stroke in a General Population of 1.4 Million Japanese: The Shiga Stroke Registry

2021 ◽  
pp. 1-7
Author(s):  
Takako Fujii ◽  
Hisatomi Arima ◽  
Naoyuki Takashima ◽  
Yoshikuni Kita ◽  
Naomi Miyamatsu ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Seasonal Variation ◽  
General Population ◽  
Intracerebral Hemorrhage ◽  
Large Scale ◽  
Population Based ◽  
Incidence Rates ◽  
Stroke Incidence ◽  
Stroke Registry ◽  
Age And Sex

<b><i>Introduction:</i></b> The purpose of this study was to investigate seasonal variation in stroke incidence using data from a large-scale stroke registry of general population in current Japan. <b><i>Methods:</i></b> Shiga Stroke Registry (SSR) is an ongoing population-based registry of stroke that occurred in the Shiga Prefecture in central Honshu, Japan. A total 6,688 cases of first-ever stroke, with onset dates ranging from 1 January 2011 to 31 December in 2013 were included in this study. Incidence rates of first-ever stroke in each season were estimated using the person-year approach and adjusted for age and sex using the Poisson regression models. <b><i>Results:</i></b> From 2011 to 2013, we identified a total of 6,688 stroke cases (3,570 men, 3,118 women), of which 4,480 cases had ischemic stroke (2,518 men, 1,962 women), 1,588 had intracerebral hemorrhage (857 men, 731 women) and 563 had subarachnoid hemorrhage (166 men, 397 women). Age- and sex-adjusted incidence rates of total stroke were 151 (95% confidence interval [CI] 144–160, <i>p</i> = &#x3c;0.001 vs. summer) in spring, 130 (95% CI 122–137) in summer, 141 (95% CI 133–149, <i>p</i> = 0.020 vs. summer) in autumn and 170 (95% CI 161–179, <i>p</i> = &#x3c;0.001 vs. summer) in winter. Seasonal variation was more pronounced in intracerebral hemorrhage than in ischemic stroke. <b><i>Conclusion:</i></b> In the present large-scale stroke registry of general population, incidence rates of stroke were highest in winter and lowest in summer in current Japan.

scholarly journals Incidence and mortality of ischemic stroke subtypes in Joinville, Brazil: a population-based study

2015 ◽  
Vol 73 (8) ◽  
pp. 648-654 ◽  
Author(s):  
Marcos C. Lange ◽  
Norberto L. Cabral ◽  
Carla H. C. Moro ◽  
Alexandre L. Longo ◽  
Anderson R. Gonçalves ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Population Based ◽  
Large Artery ◽  
Vessel Occlusion ◽  
Population Based Study ◽  
Incidence And Mortality ◽  
One Year ◽  
Undetermined Etiology ◽  
And Control ◽  
Adjusted Incidence

Aims To measure the incidence and mortality rates of ischemic stroke (IS) subtypes in Joinville, Brazil. Methods All first-ever IS patients that occurred in Joinville from January 2005 to December 2006 were identified. The IS subtypes were classified by the TOAST criteria, and the patients were followed-up for one year after IS onset. Results The age-adjusted incidence per 100,000 inhabitants was 26 (17-39) for large-artery atherosclerosis (LAA), 17 (11-27) for cardioembolic (CE), 29 (20-41) for small vessel occlusion (SVO), 2 (0.6-7) for stroke of other determined etiology (OTH) and 30 (20-43) for stroke of undetermined etiology (UND). The 1-year mortality rate per 100,000 inhabitants was 5 (2-11) for LAA, 6 (3-13) for CE, 1 (0.1-6) for SVO, 0.2 (0-0.9) for OTH and 9 (4-17) for UND. Conclusion In the population of Joinville, the incidences of IS subtypes were similar to those found in other populations. These findings highlight the importance of better detection and control of atherosclerotic risk factors.

Burden of first-ever ischemic stroke in the oldest old: Evidence from a population-based study

Neurology ◽  
2004 ◽  
Vol 62 (1) ◽  
pp. 77-81 ◽  
Author(s):  
C. Marini ◽  
M. Baldassarre ◽  
T. Russo ◽  
F. De Santis ◽  
S. Sacco ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Oldest Old ◽  
Population Based ◽  
Population Based Study ◽  
Old Evidence

Education Level Explains Differences in Stroke Incidence among City Districts in Joinville, Brazil: A Three-Year Population-Based Study

2011 ◽  
Vol 36 (4) ◽  
pp. 258-264 ◽  
Author(s):  
Norberto L. Cabral ◽  
Alexandre Longo ◽  
Carla Moro ◽  
Priscila Ferst ◽  
Fabiano A. Oliveira ◽  
...  
Keyword(s):  
Population Based ◽  
Education Level ◽  
Population Based Study ◽  
Stroke Incidence

Abstract T MP66: Injury to the Head or Neck Increases Risk of Ischemic Stroke Three-fold After Trauma.

Stroke ◽  
2014 ◽  
Vol 45 (suppl_1) ◽  
Author(s):  
Christine K Fox ◽  
Adam L Numis ◽  
Steve Sidney ◽  
Heather J Fullerton
Keyword(s):  
Ischemic Stroke ◽  
Traumatic Injury ◽  
Young Patients ◽  
Risk Groups ◽  
Population Based ◽  
Incidence Rates ◽  
Neck Injury ◽  
Diagnostic Code ◽  
Stroke Incidence ◽  
Diagnostic Codes

Background: Over 2 million people under age 50 are seen in a U.S. emergency room monthly for non-fatal injuries. Our objective was to measure ischemic stroke incidence after traumatic injury in young patients and identify stroke risk factors. Methods: We performed a population-based study of ischemic stroke after trauma among people <50 years old in a Northern Californian integrated health care system. We electronically identified a cohort of patients with diagnostic codes for trauma (ICD-9 800-959.9) in emergency and inpatient encounters from 1997-2011, then identified ischemic stroke outcomes within 4 weeks. To determine stroke, we required an ICD-9 stroke code (433-438) plus a radiology report of brain imaging containing a keyword: stroke, infarct#, thromb#, ischemi#, lacun#, or dissect#. A neurologist reviewed the reports to exclude those inconsistent with ischemic stroke. We obtained clinical data such as injury type from electronic databases to calculate stratified incidence rates and risk ratios. Results: From 1.5 million trauma encounters, we identified 197 ischemic strokes. The 4-week stroke incidence after any traumatic injury was 0.013% (95% CI 0.011, 0.015). Patients with stroke had a mean age of 37.7 years (SD 12.2) versus 24.0 years (SD 13.8) in those without stroke (P<0.0001). Patients with injury to the head or neck were more likely to have a stroke compared to those with other types of injuries (Table). The 4-week stroke incidence after head or neck injury was 0.07% (95% CI 0.05, 0.09) among adults and 0.005% (95% CI 0.001, 0.01) among children (P<0.0001). Of the 197 stroke cases, 16% (95% CI 11, 22) had a diagnostic code for cranio-cervical dissection. Conclusions: A 4-week stroke incidence of 0.013% suggests that 260 young people have an ischemic stroke after a traumatic injury every month in the U.S. Further research is needed to identify the highest risk groups, such as those with head or neck injury, and opportunities for stroke prevention.

scholarly journals Risk of Ischemic Stroke in Patients With Non-Valvular Atrial Fibrillation Not Receiving Oral Anticoagulants　― Korean Nationwide Population-Based Study ―

2017 ◽  
Vol 81 (8) ◽  
pp. 1158-1164 ◽  
Author(s):  
Si-Hyuck Kang ◽  
Eue-Keun Choi ◽  
Kyung-Do Han ◽  
So-Ryoung Lee ◽  
Woo-Hyun Lim ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Ischemic Stroke ◽  
Oral Anticoagulants ◽  
Population Based ◽  
Population Based Study
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