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Rehabilitation Practice and Science

Translated Title

氣溫對腦中風類型之影響

Abstract

Monthly or seasonal change of climate has been suggested to associate with the incidence and type of stroke, but this association is not conclusive owing to variation in study design and geographic area. The aim of this study was to investigate the short-term effect of temperature variation on type of cerebrovascular accident in first-time stroke patients.There were 1008 in-patients enrolled in this study, including 718 ischemic (infarct) stroke and 290 hemorrhagic stroke patients. The age was 68.9±11.0 years in the infarct and 62.9±13.6 years in the hemorrhagic group; 62%(181 cases) of the infarct group and 55%(395 cases) of the hemorrhagic group were males; the difference in age and gender between the infarct and hemorrhagic groups was significant (p＜0.001 vs p=0.032). The mean temperature at the day of onset, and at 3 and 7 days before onset was 22.3±5.0℃, 22.5±4.8℃ and 22.5±4.8℃ in the hemorrhagic group and 23.7±4.9℃, 23.5±4.8℃ and 23.6± 4.7℃ in the infarct group, respectively, which represents a significant difference between groups (p＜0.01). There were also significant differences in the highest temperature, lowest temperature, and temperature difference between the two groups on the day of stroke onset (p＜0.01). Multivariate logistic regression analysis revealed that age and the highest temperature at the day of onset were independent risk factors of stroke type. After a decrease of one standard deviation in age and temperature (12.8 vs 5.8), the risk of hemorrhagic stroke increases by 50% and 40% (odds ratiol.5 vs 1.4). In summary, short-term temperature variation was associated with the type of stroke, and the hemorrhagic type of stroke was more frequent than the infarction type in colder temperature with the frequency occurring in a dose-responsive manner.

Language

Traditional Chinese

First Page

71

Last Page

76

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