@article{ref1,
title="Short-term effect of ambient temperature and the risk of stroke: a systematic review and meta-analysis",
journal="International journal of environmental research and public health",
year="2015",
author="Lian, Hui and Ruan, Yanping and Liang, Ruijuan and Liu, Xiaole and Fan, Zhongjie",
volume="12",
number="8",
pages="9068-9088",
abstract="BACKGROUND AND PURPOSE: The relationship between stroke and short-term temperature changes remains controversial. Therefore, we conducted a systematic review and meta-analysis to investigate the association between stroke and both high and low temperatures, and health assessment. <br><br>METHODS: We searched PubMed, Embase, Cochrane, China National Knowledge Infrastructure (CNKI) and Wanfang Data up to 14 September 2014. Study selection, quality assessment, and author-contractions were steps before data extraction. We converted all estimates effects into relative risk (RR) per 1 °C increase/decrease in temperature from 75th to 99th or 25th to 1st percentiles, then conducted meta-analyses to combine the ultimate RRs, and assessed health impact among the population. <br><br>RESULTS: 20 articles were included in the final analysis. The overall analysis showed a positive relationship between 1 °C change and the occurrence of major adverse cerebrovascular events (MACBE), 1.1% (95% confidence intervals (CI), 0.6 to 1.7) and 1.2% (95% CI, 0.8 to 1.6) increase for hot and cold effects separately. The same trends can be found in both effects of mortality and the cold effect for morbidity. Hot temperature acted as a protective factor of hemorrhage stroke (HS), -1.9% (95% CI, -2.8 to -0.9), however, it acted as a risk factor for ischemic stroke (IS), 1.2% (95% CI, 0.7 to 1.8). <br><br>CONCLUSION: Short-term changes of both low and high temperature had statistically significant impacts on MACBE.<p /> <p>Language: en</p>",
language="en",
issn="1661-7827",
doi="10.3390/ijerph120809068",
url="http://dx.doi.org/10.3390/ijerph120809068"
}