Affiliation:
1. From the Departments of Neurology, Lotung St Mary’s Hospital (Z.-Y.C.) and Lotung Poh-Ai Hospital (S.-F.C, C.-L.S.), Ilan, Taiwan.
Abstract
Background and Purpose
The aim of this study was to clarify the association of weather and stroke occurrence in a subtropical area in Ilan, Taiwan.
Methods
We studied 517 patients with stroke (date of onset, January 1 to December 31, 1991) in Poh-Ai Hospital and St Mary’s Hospital: 316 patients (61.1%) with cerebral infarction, 170 (32.9%) with intracerebral hemorrhage, and 31 (6.0%) with other types of stroke. The daily occurrence of cerebral infarction and intracerebral hemorrhage was analyzed and correlated with three major meteorologic factors: air temperature, air pressure, and relative humidity.
Results
The occurrence of cerebral infarction was rather uniform in all kinds of weather. The occurrence of intracerebral hemorrhage was approximately twice as great on cold days (0.71 case per day) and high-pressure days (0.73) as on warm days (0.31) and low-pressure days (0.39) (
P
<.005 by χ
2
test). When a linear regression model was used to test whether air temperature or air pressure had more influence on intracerebral hemorrhage, only air temperature showed a significant effect. Regarding intracerebral hemorrhage, the relative risks of cooler and median temperature days versus warmer days were 18.5 and 5.1, respectively.
Conclusions
Intracerebral hemorrhage but not cerebral infarction occurs more frequently on cooler days, with a dose-response relationship, in Ilan, Taiwan.
Publisher
Ovid Technologies (Wolters Kluwer Health)
Subject
Advanced and Specialised Nursing,Cardiology and Cardiovascular Medicine,Clinical Neurology
Reference25 articles.
1. Shon LP. Pathophysiology of Chinese Medicine [in Chinese]. Taipei Taiwan: Chi-Ye; 1988:89-99.
2. Frederick S. Hippocratic Heritage: A History of Ideas About Weather and Human Health . New York NY: Pergamon Press Inc; 1982.
3. Marquardsen J. Epidemiology of stroke in Europe. In: Barnett HJM Stein BM Mohr JP Yatsu FM eds. Stroke: Pathophysiology Diagnosis and Management . New York NY: Churchill Livingstone Inc; 1986:36.
4. Bokonjic R Zec N. Stroke and the weather: a quantitative statistical study. J Neurol Sci . 1968:483-491.
Cited by
49 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献