The Influence of Selected Meteorological Factors on the Prevalence and Course of Stroke

<i>Background</i>: The objective of this study was to evaluate the impact of weather factors on stroke parameters. <i>Methods</i>: This retrospective study analyzed the records of stroke patients concerning the influence of meteorological conditions and moon phases on stroke...

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Autores principales:	Katarzyna Zaręba, Anetta Lasek-Bal, Sebastian Student
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	stroke weather factors meteorological parameters post-stroke functional state Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/eff9c2e6924a476eb4d72be7f15500c7
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spelling	oai:doaj.org-article:eff9c2e6924a476eb4d72be7f15500c72021-11-25T18:18:40ZThe Influence of Selected Meteorological Factors on the Prevalence and Course of Stroke10.3390/medicina571112161648-91441010-660Xhttps://doaj.org/article/eff9c2e6924a476eb4d72be7f15500c72021-11-01T00:00:00Zhttps://www.mdpi.com/1648-9144/57/11/1216https://doaj.org/toc/1010-660Xhttps://doaj.org/toc/1648-9144<i>Background</i>: The objective of this study was to evaluate the impact of weather factors on stroke parameters. <i>Methods</i>: This retrospective study analyzed the records of stroke patients concerning the influence of meteorological conditions and moon phases on stroke parameters. <i>Results</i>: The study group consisted of 402 patients aged between 20 and 102; women constituted 49.8% of the subjects. Ischaemic stroke was diagnosed in 90.5% of patients and hemorrhagic stroke was diagnosed in 9.5% of patients. The highest number of hospitalizations due to stroke was observed in January (48 events); the lowest number was observed in July (23 events). There was no statistically significant correlation between the meteorological parameters on the day of onset and the preceding day of stroke and the neurological status (NIHSS) of patients. Mean air temperature on the day of stroke and the day preceding stroke was significantly lower in the group of patients discharged with a very good functional status (≤2 points in modified Rankin scale (mRS)) compared to the patients with a bad functional status (>2 points in mRS); respectively: 7.98 ± 8.01 vs. 9.63 ± 7.78; <i>p</i> = 0.041 and 8.13 ± 7.72 vs. 9.70 ± 7.50; <i>p</i> = 0.048). Humidity above 75% on the day of stroke was found to be a factor for excellent functional state (RR 1.61; <i>p</i> = 0.016). The total anterior circulation infarcts (in comparison with stroke in the other localization) were more frequent (70%) during a third quarter moon (<i>p</i> = 0.011). The following parameters had a significant influence on the number of stroke cases in relation to autumn having the lowest number of onsets: mean temperature (OR 1.019 95% CI 1.014–1.024, <i>p</i> < 0.000), humidity (OR 1.028, CI 1.023–1.034, <i>p</i> < 0.0001), wind speed (OR 0.923, 95% CI 0.909–0.937, <i>p</i> < 0.0001), insolation (OR 0.885, 95% CI 0.869–0.902, <i>p</i> < 0.0001), precipitation (OR 0.914, 95% CI 0.884–0.946, <i>p</i> < 0.0001). <i>Conclusion</i>: Air humidity and air temperature on the day of stroke onset as well as air temperature on the day preceding stroke are important for the functional status of patients in the acute disease period. A combination of the following meteorological parameters: lowered mean temperature and low sunshine, high humidity and high wind speed all increase the risk of stroke during the winter period. High humidity combined with high precipitation, low wind speed and low sunshine in the autumn period are associated with the lowest stroke incidence risk. A possible relationship between phases of the moon and the incidence requires further investigation.Katarzyna ZarębaAnetta Lasek-BalSebastian StudentMDPI AGarticlestrokeweather factorsmeteorological parameterspost-stroke functional stateMedicine (General)R5-920ENMedicina, Vol 57, Iss 1216, p 1216 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	stroke weather factors meteorological parameters post-stroke functional state Medicine (General) R5-920
spellingShingle	stroke weather factors meteorological parameters post-stroke functional state Medicine (General) R5-920 Katarzyna Zaręba Anetta Lasek-Bal Sebastian Student The Influence of Selected Meteorological Factors on the Prevalence and Course of Stroke
description	<i>Background</i>: The objective of this study was to evaluate the impact of weather factors on stroke parameters. <i>Methods</i>: This retrospective study analyzed the records of stroke patients concerning the influence of meteorological conditions and moon phases on stroke parameters. <i>Results</i>: The study group consisted of 402 patients aged between 20 and 102; women constituted 49.8% of the subjects. Ischaemic stroke was diagnosed in 90.5% of patients and hemorrhagic stroke was diagnosed in 9.5% of patients. The highest number of hospitalizations due to stroke was observed in January (48 events); the lowest number was observed in July (23 events). There was no statistically significant correlation between the meteorological parameters on the day of onset and the preceding day of stroke and the neurological status (NIHSS) of patients. Mean air temperature on the day of stroke and the day preceding stroke was significantly lower in the group of patients discharged with a very good functional status (≤2 points in modified Rankin scale (mRS)) compared to the patients with a bad functional status (>2 points in mRS); respectively: 7.98 ± 8.01 vs. 9.63 ± 7.78; <i>p</i> = 0.041 and 8.13 ± 7.72 vs. 9.70 ± 7.50; <i>p</i> = 0.048). Humidity above 75% on the day of stroke was found to be a factor for excellent functional state (RR 1.61; <i>p</i> = 0.016). The total anterior circulation infarcts (in comparison with stroke in the other localization) were more frequent (70%) during a third quarter moon (<i>p</i> = 0.011). The following parameters had a significant influence on the number of stroke cases in relation to autumn having the lowest number of onsets: mean temperature (OR 1.019 95% CI 1.014–1.024, <i>p</i> < 0.000), humidity (OR 1.028, CI 1.023–1.034, <i>p</i> < 0.0001), wind speed (OR 0.923, 95% CI 0.909–0.937, <i>p</i> < 0.0001), insolation (OR 0.885, 95% CI 0.869–0.902, <i>p</i> < 0.0001), precipitation (OR 0.914, 95% CI 0.884–0.946, <i>p</i> < 0.0001). <i>Conclusion</i>: Air humidity and air temperature on the day of stroke onset as well as air temperature on the day preceding stroke are important for the functional status of patients in the acute disease period. A combination of the following meteorological parameters: lowered mean temperature and low sunshine, high humidity and high wind speed all increase the risk of stroke during the winter period. High humidity combined with high precipitation, low wind speed and low sunshine in the autumn period are associated with the lowest stroke incidence risk. A possible relationship between phases of the moon and the incidence requires further investigation.
format	article
author	Katarzyna Zaręba Anetta Lasek-Bal Sebastian Student
author_facet	Katarzyna Zaręba Anetta Lasek-Bal Sebastian Student
author_sort	Katarzyna Zaręba
title	The Influence of Selected Meteorological Factors on the Prevalence and Course of Stroke
title_short	The Influence of Selected Meteorological Factors on the Prevalence and Course of Stroke
title_full	The Influence of Selected Meteorological Factors on the Prevalence and Course of Stroke
title_fullStr	The Influence of Selected Meteorological Factors on the Prevalence and Course of Stroke
title_full_unstemmed	The Influence of Selected Meteorological Factors on the Prevalence and Course of Stroke
title_sort	influence of selected meteorological factors on the prevalence and course of stroke
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/eff9c2e6924a476eb4d72be7f15500c7
work_keys_str_mv	AT katarzynazareba theinfluenceofselectedmeteorologicalfactorsontheprevalenceandcourseofstroke AT anettalasekbal theinfluenceofselectedmeteorologicalfactorsontheprevalenceandcourseofstroke AT sebastianstudent theinfluenceofselectedmeteorologicalfactorsontheprevalenceandcourseofstroke AT katarzynazareba influenceofselectedmeteorologicalfactorsontheprevalenceandcourseofstroke AT anettalasekbal influenceofselectedmeteorologicalfactorsontheprevalenceandcourseofstroke AT sebastianstudent influenceofselectedmeteorologicalfactorsontheprevalenceandcourseofstroke
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The Influence of Selected Meteorological Factors on the Prevalence and Course of Stroke

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