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Environmental Health

, 12:12

First Online: 01 February 2013Received: 13 November 2012Accepted: 29 January 2013DOI: 10.1186-1476-069X-12-12

Cite this article as: Xu, Z., Huang, C., Su, H. et al. Environ Health 2013 12: 12. doi:10.1186-1476-069X-12-12

Abstract

BackgroundHot and cold temperatures have been associated with childhood asthma. However, the relationship between daily temperature variation and childhood asthma is not well understood. This study aimed to examine the relationship between diurnal temperature range DTR and childhood asthma.

MethodsA Poisson generalized linear model combined with a distributed lag non-linear model was used to examine the relationship between DTR and emergency department admissions for childhood asthma in Brisbane, from January 1st 2003 to December 31st 2009.

ResultsThere was a statistically significant relationship between DTR and childhood asthma. The DTR effect on childhood asthma increased above a DTR of 10°C. The effect of DTR on childhood asthma was the greatest for lag 0–9 days, with a 31% 95% confidence interval: 11% – 58% increase of emergency department admissions per 5°C increment of DTR. Male children and children aged 5–9 years appeared to be more vulnerable to the DTR effect than others.

ConclusionsLarge DTR may trigger childhood asthma. Future measures to control and prevent childhood asthma should include taking temperature variability into account. More protective measures should be taken after a day of DTR above10°C.

KeywordsClimate change Diurnal temperature range Childhood asthma AbbreviationsAICAkaike’s Information Criterion

DLNMDistributed lag non-linear model

DTRDiurnal temperature range

EDAEmergency department admission

ICD10International classification of disease, tenth revision

NO2Nitrogen dioxide

PM10Particulate matter ≤10 μm

SDStandard deviation.

Electronic supplementary materialThe online version of this article doi:10.1186-1476-069X-12-12 contains supplementary material, which is available to authorized users.

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Autor: Zhiwei Xu - Cunrui Huang - Hong Su - Lyle R Turner - Zhen Qiao - Shilu Tong

Fuente: https://link.springer.com/







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