Thunderstorm associated asthma: a detailed analysis of environmental factors

Celenza, Antonio; Fothergill, J; Kupek, Emil; Shaw, Rory

doi:10.1136/bmj.312.7031.604

Cited by 182 publications

(135 citation statements)

References 16 publications

(23 reference statements)

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“…The data are consistent with previous investigations of thunderstorm asthma epidemics in London, Melbourne, and Tamworth [2,4,10]. Allergy to rye grass pollen and history of hayfever has been associated with thunderstorm asthma exacerbation in previous investigations [2,4,13]. This is consistent with the findings of the current study in which 95% of thunderstorm cases were allergic to rye grass and a similar proportion reported prior hayfever symptoms.…”

Section: Discussionsupporting

confidence: 83%

“…However, it is anticipated that most patients with asthma in Wagga Wagga would use the emergency department service for acute episodes. The data are consistent with previous investigations of thunderstorm asthma epidemics in London, Melbourne, and Tamworth [2,4,10]. Allergy to rye grass pollen and history of hayfever has been associated with thunderstorm asthma exacerbation in previous investigations [2,4,13].…”

Section: Discussionsupporting

confidence: 82%

“…Several meteorological features such as temperature, high humidity, rainfall, thunderstorm electric or lightening activity have been proposed as possible triggers for severe exacerbations of asthma following a thunderstorm [4,11], However, not all thunderstorms are associated with asthma exacerbations and not all asthma epidemics are preceded by thunderstorms [14].…”

mentioning

confidence: 99%

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Thunderstorm-associated asthma in an inland town in south-eastern Australia. Who is at risk?

et al. 2000

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The aim of the study was to characterize patients at risk of asthma exacerbation during spring thunderstorms and identify potential measures to ameliorate the impact of those events.A case-control study was conducted among patients aged 7±60 yrs, who attended Wagga Hospital (NSW, Australia) for asthma during the period of 1 June 1997 to 31 October 1997. One hundred and eighty-three patients who attended on 30 and 31 October 1997 were the cases and the remaining 121 patients were the controls. Questionnaire data were obtained from 148 (81%) cases and 91 (75%) controls.One hundred and thirty-eight (95%) cases who attended during the thunderstorm gave a history of hayfever prior to the event compared to 66 (74%) controls who attended at other times (odds ratio (OR) 6.01, 95% confidence interval (CI) 2.55± 14.15); 111 (96%) cases were allergic to rye grass pollen compared to 47 (64%) controls (OR 23.6, 95% CI 6.6±84.3). Among subjects with a prior diagnosis of asthma (64% cases and 82% controls), controls (56%) were more likely to be taking inhaled steroids at time of the thunderstorm than cases (27%, OR 0.3, 95% CI 0.16±0.57).History of hayfever and allergy to rye grass are strong predictors for asthma exacerbation during thunderstorms in spring. The lower rate of inhaled steroid use in thunderstorm cases suggests that this treatment may be effective in preventing severe attacks during thunderstorms. Eur Respir J 2000; 16: 3±8.

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Section: Discussionsupporting

confidence: 83%

Section: Discussionsupporting

confidence: 82%

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confidence: 99%

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Thunderstorm-associated asthma in an inland town in south-eastern Australia. Who is at risk?

et al. 2000

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“…Possible precipitating factors are the commencement of the new school year, with the rapid transmission of a virus predisposing to asthma attacks, 3,4 high levels of grass pollen resulting from high summer rainfalls, or other environmental causes related to meteorological conditions. 5,6 Localised factors, such as air pollution, or industrial contaminants, 7 are not likely to be implicated, as children were affected over a large area of the state. The northern-and southern-most boundaries of the outbreak have not yet been defined.…”

Section: Discussionmentioning

confidence: 99%

A statewide 'outbreak' of asthma in NSW, February 1999

Sheppeard¹,

Corbett²,

Morgan³

2000

NSW Public Health Bull.

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“…The seasonal causes of the increases in asthma have been explained in terms of meteorological and pollutant variables. Regarding the meteorological variables, different authors have concluded that the symptoms may be related to the temperature prevailing during cold periods (Beer et al, 1991;Yuksel et al, 1996), changes in temperature (Crighton et al, 2001), relative humidity and rainfall (Celenza et al, 1996), fog (Kashiwabara et al, 2002), wind speed (Hashimoto et al, 2004), and changes in barometric pressure and storms (Sutherland and Hall, 1994;Newson et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

Effects of weather types on hospital admissions for respiratory diseases in Castilla-La Mancha, Spain

Dávila¹,

Soriano²,

Llorente³

et al. 2013

Atmósfera

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El objetivo de este estudio consiste en evaluar la relación entre el riesgo de ingreso hospitalario por enfermedades respiratorias habidos en hospitales de Castilla-La Mancha, España, y los tipos diarios de masas de aire (situaciones meteorológicas) presentes durante el periodo 2000-2006, utilizando un enfoque climatológico sinóptico. Se determinaron los principales tipos de circulación atmosférica presentes en la zona para el invierno y la primavera (estaciones en que las admisiones hospitalarias de carácter respiratorio son máximas), así como sus distribuciones de frecuencia. Se analizan las características principales de los ingresos hospitalarios y su distribución en los siete años estudiados, junto con las distribuciones de frecuencia clasificadas por sexo y edades, estaciones climáticas, meses y días de la semana. Además, se realiza un análisis entre la clasificación obtenida de masas de aire y los ingresos hospitalarios, mediante la utilización de un índice de admisión o tasa relativa. Los resultados revelan diferentes respuestas en la tasa de ingreso por enfermedades respiratorias frente a los ocho tipos de masas de aire identificados en invierno y en primavera. En invierno, las tres masas de aire dominantes que se asocian, las circulaciones del suroeste, las anticiclónicas y las híbridas anticiclónicas del suroeste, presentan valores 1.5 veces superiores al promedio de ingresos respectivos, mientras que en la primavera no se observan diferencias significativas en el número de admisiones frente a los tipos de tiempo. ABSTRACTThe aim of this study is to evaluate the relationship between the risk of hospital admission for respiratory diseases (RD) and the daily weather types during the period 2000-2006. A synoptic climatological approach is used to investigate links between air-mass types (weather situations) and all respiratory hospital admissions in the Castilla-La Mancha (CLM) area in Spain. This afforded the main circulation weather types (CWTs) for the winter and spring periods (since respiratory hospital admissions reached their maximum during these seasons) and the frequency distributions of these types were analyzed. A summary of the main characteristics of the hospital admission series and their distribution over the seven years studied, together with the frequency distributions of the admissions classified by sex and ages, for season, month and for each day of the week, is reported. In addition, a comparison between air-mass classification and hospital admissions is made using an admission index (AI). The results reveal different responses of respiratory admission rates to the eight air-mass types identified in winter and in spring. In winter, three air massess southwesterly (SW), anti-cyclonic (A) and hybrid anti-cyclonic southwesterly (HASW), are associated with values 1.5 times higher than the respective average admission rates, while in spring no significant differences are seen.

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Thunderstorm associated asthma: a detailed analysis of environmental factors

Cited by 182 publications

References 16 publications

Thunderstorm-associated asthma in an inland town in south-eastern Australia. Who is at risk?

Thunderstorm-associated asthma in an inland town in south-eastern Australia. Who is at risk?

A statewide 'outbreak' of asthma in NSW, February 1999

Effects of weather types on hospital admissions for respiratory diseases in Castilla-La Mancha, Spain

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