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Geomagnetic Storms Can Trigger Stroke Evidence From 6 Large Population-Based Studies in Europe and Australasia

Identifieur interne : 004145 ( Main/Exploration ); précédent : 004144; suivant : 004146

Geomagnetic Storms Can Trigger Stroke Evidence From 6 Large Population-Based Studies in Europe and Australasia

Auteurs : Valery L. Feigin [Nouvelle-Zélande] ; Priya G. Parmar [Nouvelle-Zélande] ; Suzanne Barker-Collo [Nouvelle-Zélande] ; Derrick A. Bennett [Royaume-Uni] ; Craig S. Anderson [Australie] ; Amanda G. Thrift [Australie] ; Birgitta Stegmayr [Suède] ; Peter M. Rothwell [Royaume-Uni] ; Maurice Giroud [France] ; Yannick Bejot [France] ; Phillip Carvil [Royaume-Uni] ; Rita Krishnamurthi [Nouvelle-Zélande] ; Nikola Kasabov [Nouvelle-Zélande]

Source :

RBID : Pascal:14-0171717

Descripteurs français

English descriptors

Abstract

Background and Purpose-Although the research linking cardiovascular disorders to geomagnetic activity is accumulating, robust evidence for the impact of geomagnetic activity on stroke occurrence is limited and controversial. Methods-We used a time-stratified case-crossover study design to analyze individual participant and daily geomagnetic activity (as measured by Ap Index) data from several large population-based stroke incidence studies (with information on 11453 patients with stroke collected during 16031764 person-years of observation) in New Zealand, Australia, United Kingdom, France, and Sweden conducted between 1981 and 2004. Hazard ratios and corresponding 95% confidence intervals (CIs) were calculated. Results-Overall, geomagnetic storms (Ap Index 60+) were associated with 19% increase in the risk of stroke occurrence (95% CI, 11%-27%). The triggering effect of geomagnetic storms was most evident across the combined group of all strokes in those aged <65 years, increasing stroke risk by >50%: moderate geomagnetic storms (60-99 Ap Index) were associated with a 27% (95% CI, 8%-48%) increased risk of stroke occurrence, strong geomagnetic storms (100-149 Ap Index) with a 52% (95% CI, 19%-92%) increased risk, and severe/extreme geomagnetic storms (Ap Index 150+) with a 52% (95% CI, 19%-94%) increased risk (test for trend, P<2×10-16). Conclusions-Geomagnetic storms are associated with increased risk of stroke and should be considered along with other established risk factors. Our findings provide a framework to advance stroke prevention through future investigation of the contribution of geomagnetic factors to the risk of stroke occurrence and pathogenesis.


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Le document en format XML

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<name sortKey="Kasabov, Nikola" sort="Kasabov, Nikola" uniqKey="Kasabov N" first="Nikola" last="Kasabov">Nikola Kasabov</name>
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<title level="j" type="main">Stroke : (1970)</title>
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</teiHeader>
<front>
<div type="abstract" xml:lang="en">Background and Purpose-Although the research linking cardiovascular disorders to geomagnetic activity is accumulating, robust evidence for the impact of geomagnetic activity on stroke occurrence is limited and controversial. Methods-We used a time-stratified case-crossover study design to analyze individual participant and daily geomagnetic activity (as measured by Ap Index) data from several large population-based stroke incidence studies (with information on 11453 patients with stroke collected during 16031764 person-years of observation) in New Zealand, Australia, United Kingdom, France, and Sweden conducted between 1981 and 2004. Hazard ratios and corresponding 95% confidence intervals (CIs) were calculated. Results-Overall, geomagnetic storms (Ap Index 60+) were associated with 19% increase in the risk of stroke occurrence (95% CI, 11%-27%). The triggering effect of geomagnetic storms was most evident across the combined group of all strokes in those aged <65 years, increasing stroke risk by >50%: moderate geomagnetic storms (60-99 Ap Index) were associated with a 27% (95% CI, 8%-48%) increased risk of stroke occurrence, strong geomagnetic storms (100-149 Ap Index) with a 52% (95% CI, 19%-92%) increased risk, and severe/extreme geomagnetic storms (Ap Index 150+) with a 52% (95% CI, 19%-94%) increased risk (test for trend, P<2×10
<sup>-16</sup>
). Conclusions-Geomagnetic storms are associated with increased risk of stroke and should be considered along with other established risk factors. Our findings provide a framework to advance stroke prevention through future investigation of the contribution of geomagnetic factors to the risk of stroke occurrence and pathogenesis.</div>
</front>
</TEI>
<affiliations>
<list>
<country>
<li>Australie</li>
<li>France</li>
<li>Nouvelle-Zélande</li>
<li>Royaume-Uni</li>
<li>Suède</li>
</country>
<region>
<li>Angleterre</li>
<li>Bourgogne</li>
<li>Bourgogne-Franche-Comté</li>
<li>Grand Londres</li>
<li>Nouvelle-Galles du Sud</li>
<li>Oxfordshire</li>
<li>Victoria (État)</li>
</region>
<settlement>
<li>Dijon</li>
<li>Londres</li>
<li>Melbourne</li>
<li>Oxford</li>
<li>Sydney</li>
</settlement>
<orgName>
<li>Université d'Oxford</li>
<li>Université de Sydney</li>
</orgName>
</list>
<tree>
<country name="Nouvelle-Zélande">
<noRegion>
<name sortKey="Feigin, Valery L" sort="Feigin, Valery L" uniqKey="Feigin V" first="Valery L." last="Feigin">Valery L. Feigin</name>
</noRegion>
<name sortKey="Barker Collo, Suzanne" sort="Barker Collo, Suzanne" uniqKey="Barker Collo S" first="Suzanne" last="Barker-Collo">Suzanne Barker-Collo</name>
<name sortKey="Kasabov, Nikola" sort="Kasabov, Nikola" uniqKey="Kasabov N" first="Nikola" last="Kasabov">Nikola Kasabov</name>
<name sortKey="Krishnamurthi, Rita" sort="Krishnamurthi, Rita" uniqKey="Krishnamurthi R" first="Rita" last="Krishnamurthi">Rita Krishnamurthi</name>
<name sortKey="Parmar, Priya G" sort="Parmar, Priya G" uniqKey="Parmar P" first="Priya G." last="Parmar">Priya G. Parmar</name>
</country>
<country name="Royaume-Uni">
<region name="Angleterre">
<name sortKey="Bennett, Derrick A" sort="Bennett, Derrick A" uniqKey="Bennett D" first="Derrick A." last="Bennett">Derrick A. Bennett</name>
</region>
<name sortKey="Carvil, Phillip" sort="Carvil, Phillip" uniqKey="Carvil P" first="Phillip" last="Carvil">Phillip Carvil</name>
<name sortKey="Rothwell, Peter M" sort="Rothwell, Peter M" uniqKey="Rothwell P" first="Peter M." last="Rothwell">Peter M. Rothwell</name>
</country>
<country name="Australie">
<region name="Nouvelle-Galles du Sud">
<name sortKey="Anderson, Craig S" sort="Anderson, Craig S" uniqKey="Anderson C" first="Craig S." last="Anderson">Craig S. Anderson</name>
</region>
<name sortKey="Thrift, Amanda G" sort="Thrift, Amanda G" uniqKey="Thrift A" first="Amanda G." last="Thrift">Amanda G. Thrift</name>
</country>
<country name="Suède">
<noRegion>
<name sortKey="Stegmayr, Birgitta" sort="Stegmayr, Birgitta" uniqKey="Stegmayr B" first="Birgitta" last="Stegmayr">Birgitta Stegmayr</name>
</noRegion>
</country>
<country name="France">
<region name="Bourgogne-Franche-Comté">
<name sortKey="Giroud, Maurice" sort="Giroud, Maurice" uniqKey="Giroud M" first="Maurice" last="Giroud">Maurice Giroud</name>
</region>
<name sortKey="Bejot, Yannick" sort="Bejot, Yannick" uniqKey="Bejot Y" first="Yannick" last="Bejot">Yannick Bejot</name>
<name sortKey="Bejot, Yannick" sort="Bejot, Yannick" uniqKey="Bejot Y" first="Yannick" last="Bejot">Yannick Bejot</name>
</country>
</tree>
</affiliations>
</record>

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