2003
DOI: 10.1136/thorax.58.8.708
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Short term effects of airborne pollen concentrations on asthma epidemic

Abstract: Background: Few studies have used time series to investigate the relationship between asthma attacks and aeroallergen levels on a daily basis. Methods: This study, based on time series analysis adjusting for meteorological factors and air pollution variables, assessed the short term effects of different types of allergenic pollen on asthma hospital emergencies in the metropolitan area of Madrid (Spain) for the period 1995-8. Results: Statistically significant associations were found for Poaceae pollen (lag of … Show more

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Cited by 74 publications
(85 citation statements)
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References 14 publications
(12 reference statements)
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“…Moreover concerning to the relation found in the scatter plot with noise levels and children hospital admissions that establish a strong increase about a level of 65 dB (A), two previous papers centred in Madrid City, establish this identical level for morbidity in general population too [13,23]. The relation found for pollen levels it also has been detected previously in Madrid over daily number of asthma emergency room admissions and high levels of Poaceae pollen that suggests their implication in the epidemic distribution of asthma, during the period coinciding with their abrupt release into the environment [24].…”
Section: Discussionsupporting
confidence: 50%
“…Moreover concerning to the relation found in the scatter plot with noise levels and children hospital admissions that establish a strong increase about a level of 65 dB (A), two previous papers centred in Madrid City, establish this identical level for morbidity in general population too [13,23]. The relation found for pollen levels it also has been detected previously in Madrid over daily number of asthma emergency room admissions and high levels of Poaceae pollen that suggests their implication in the epidemic distribution of asthma, during the period coinciding with their abrupt release into the environment [24].…”
Section: Discussionsupporting
confidence: 50%
“…In particular, studies in Australia [57], Canada [58], NJ, USA [59], and Spain [60] have all shown that pollen levels are associated with an increase in emergency department visits or hospital admissions for asthma. The number of asthma-related hospital admissions and emergency department visits allow for an assessment of the effect of climate change on the presence of respiratory ailments.…”
Section: Allergic Effects On Human Populationsmentioning
confidence: 99%
“…Atmospheric pollen counts are positively correlated with symptoms of allergic rhinitis and/or conjunctivitis [2][3], emergency visits or hospitalization because of asthma [4][5][6] and stroke [7]. In addition, even a short term exposure to allergic pollen has been found to increase the prescribed anti-allergic medicines [8].…”
Section: Introductionmentioning
confidence: 98%