The Relation of Stroke Admissions to Recent Weather, Airborne Allergens, Air Pollution, Seasons, Upper Respiratory Infections, and Asthma Incidence, September 11, 2001, and Day of the Week

Low, Ronald B.; Bielory, Leonard; Qureshi, Adnan I.; Dunn, Van; Stuhlmiller, David F.E.; Dickey, David A.

doi:10.1161/01.str.0000214681.94680.66

Cited by 103 publications

(85 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although these variables are strongly interrelated with weather conditions, their individual effect might potentially contribute to increase the risk of stroke admissions. 5 The very weak heat effect on stroke occurrences evidenced in this study might hide a pollution effect and in particular the potential short-term effect of ozone air pollution. 31 However, heterogeneity of the pollution effect and sometimes conflicting results have been noted.…”

Section: Strengths and Limitations Of The Studymentioning

confidence: 71%

See 1 more Smart Citation

Innovative Approaches Helpful to Enhance Knowledge on Weather-Related Stroke Events Over a Wide Geographical Area and a Large Population

Morabito

Crisci²,

Vallorani³

et al. 2011

Stroke

View full text Add to dashboard Cite

Background and Purpose-Results on the effect of weather on stroke occurrences are still confusing and controversial.The aim of this study was to retrospectively investigate in Tuscany (central Italy) the weather-related stroke events through the use of an innovative source of weather data (Reanalysis) together with an original statistical approach to quantify the prompt/delayed health effects of both cold and heat exposures. Methods-Daily stroke hospitalizations and meteorologic data from the Reanalysis 2 Achieve were obtained for the period 1997 to 2007. Generalized linear and additive models and an innovative modeling approach, the constrained segmented distributed lag model, were applied. Results-Both daily averages and day-to-day changes of air temperature and geopotential height (a measure that approximates the mean surface pressure) were selected as independent predictors of all stroke occurrences. In particular, a 5°C temperature decrease was associated with 16.5% increase of primary intracerebral hemorrhage of people Ն65 years of age. A general short-term cold effect on hospitalizations limited to 1 week after exposure was observed and, for the first time, a clear harvesting effect (deficit of hospitalization) for cold-related primary intracerebral hemorrhage was described. Day-to-day changes of meteorologic parameters disclosed characteristic U-and J-shaped relationships with stroke occurrences. Conclusions-Thanks to the intrinsic characteristic of Reanalysis, these results might simply be implemented in an operative forecast system regarding weather-related stroke events with the aim to develop preventive health plans. (Stroke. 2011;42:593-600.)

show abstract

Section: Strengths and Limitations Of The Studymentioning

confidence: 71%

“…[1][2][3][4][5][6][7][8][9] Nevertheless, as reported in a recent review, 10 authors often described discordant effects of both air temperature and atmospheric pressure.…”

mentioning

confidence: 99%

Innovative Approaches Helpful to Enhance Knowledge on Weather-Related Stroke Events Over a Wide Geographical Area and a Large Population

Morabito

Crisci²,

Vallorani³

et al. 2011

Stroke

View full text Add to dashboard Cite

show abstract

“…The findings of this study are in line with other studies involving participants with respiratory conditions and potential inflammation. For example, Low et al 21 showed that upper respiratory infections, grass pollen, and air pollutants led to increased hospital admissions for stroke.…”

Section: Discussionmentioning

confidence: 99%

The Association Between Hay Fever and Stroke in a Cohort of Middle Aged and Elderly Adults

Matheson

Player²,

Mainous³

et al. 2008

The Journal of the American Board of Family Medicine

View full text Add to dashboard Cite

Background: Asthma has been linked to stroke, but it is unknown if hay fever is related to stroke. This study was designed to investigate if there is an association between a reported history of hay fever and stroke during a 4.4-year study period.Methods: Analysis was performed of the Atherosclerosis Risk in Communities study, a cohort of middle aged and elderly adults. We examined the association of a reported history of hay fever to the development of stroke.Results: There were 9272 participants meeting our criteria, of which 125 had strokes. Of those with a history of hay fever, 2.2% had a stroke. Of those without a history of hay fever, 1.25% had a stroke. Participants with a history of hay fever had an unadjusted hazard ratio of 1.72 (95% CI, 1.08 -2.27) for stroke versus participants without hay fever. Risk of stroke remained significant (hazard ratio, 1.87 [95% CI, 1.17-2.99]) after controlling for age, sex, race, smoking status, body mass index, diabetes, hypertension, alcohol use, and hyperlipidemia.Conclusion: A history of hay fever seems to be a risk factor for stroke, and this association may be an area for future research and intervention.

show abstract

“…Similar findings on low temperature and higher stroke occurrence were also reported in South Korea, 23 northern Portugal, 24 and Hong Kong. 8 On the other hand, hot temperature was linked to higher stroke risk in studies in Scotland, 25 Mantua (Italy), 9 New York City, 26 California, 27 Brisbane (Australia), 28 and 4 cities in Korea. 29 In the present study, we found that the associations between temperature and stroke mortality were often nonlinear-both low and high temperatures were linked to more stroke deaths.…”

Section: Figurementioning

confidence: 99%

Both low and high temperature may increase the risk of stroke mortality

Chen¹,

et al. 2013

View full text Add to dashboard Cite

Objective: To examine temperature in relation to stroke mortality in a multicity time series study in China.Methods: We obtained data on daily temperature and mortality from 8 large cities in China. We used quasi-Poisson generalized additive models and distributed lag nonlinear models to estimate the accumulative effects of temperature on stroke mortality across multiple days, adjusting for long-term and seasonal trends, day of the week, air pollution, and relative humidity. We applied the Bayesian hierarchical model to pool city-specific effect estimates.Results: Both cold and hot temperatures were associated with increased risk of stroke mortality.The potential effect of cold temperature might last more than 2 weeks. The pooled relative risks of extreme cold (first percentile of temperature) and cold (10th percentile of temperature) temperatures over lags 0-14 days were 1.39 (95% posterior intervals [PI] 1.18-1.64) and 1.11 (95% PI 1.06-1.17), compared with the 25th percentile of temperature. In contrast, the effect of hot temperature was more immediate. The relative risks of stroke mortality over lags 0-3 days were 1.06 (95% PI 1.02-1.10) for extreme hot temperature (99th percentile of temperature) and 1.14 (95% PI 1.05-1.24) for hot temperature (90th percentile of temperature), compared with the 75th percentile of temperature.Conclusions: This study showed that both cold and hot temperatures were associated with increased risk of stroke mortality in China. Our findings may have important implications for stroke prevention in China. Stroke is one of the leading causes of death and disability worldwide.1 In contrast to developed countries, where stroke incidence declined by 42% over the last 4 decades, stroke incidence in developing countries doubled, surpassing that from developed countries.2 China is the largest developing country in the world and stroke burden is disproportionately high. In China, stroke mortality accounts for 19% of the total mortality, more than twice the mortality from ischemic heart disease (8%).3 Moreover, stroke patients in China have higher fatality than patients from developed countries. 4 Stroke has substantial medical, public health, and economic impacts in China.To reduce the burden of stroke, it is crucial to identify modifiable risk factors. It is wellknown that some traditional cerebrovascular risk factors, including hypertension, high cholesterol levels, obesity, smoking, and alcohol consumption, increased the risk for stroke. 5 However, the potential relationships of environmental risk factors and stroke have not been adequately studied in China.

show abstract

The Relation of Stroke Admissions to Recent Weather, Airborne Allergens, Air Pollution, Seasons, Upper Respiratory Infections, and Asthma Incidence, September 11, 2001, and Day of the Week

Cited by 103 publications

References 31 publications

Innovative Approaches Helpful to Enhance Knowledge on Weather-Related Stroke Events Over a Wide Geographical Area and a Large Population

Innovative Approaches Helpful to Enhance Knowledge on Weather-Related Stroke Events Over a Wide Geographical Area and a Large Population

The Association Between Hay Fever and Stroke in a Cohort of Middle Aged and Elderly Adults

Both low and high temperature may increase the risk of stroke mortality

Contact Info

Product

Resources

About