The association between ambient temperature and children's lung function in Baotou, China

Li, Shanshan, Guo, Yuming, Williams, Gail, Baker, Peter, Ye, Xiaofang, Madaniyazi, Lina, Kim, Daeseon, & Pan, Xiaochuan (2015) The association between ambient temperature and children's lung function in Baotou, China. International Journal of Biometeorology, 59(7), pp. 791-798.

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The objective of this study is to examine the association between ambient temperature and children’s lung function in Baotou, China. We recruited 315 children (8–12 years) from Baotou, China in the spring of 2004, 2005, and 2006. They performed three successive forced expiratory measurements three times daily (morning, noon, and evening) for about 5 weeks. The highest peak expiratory flow (PEF) was recorded for each session. Daily data on ambient temperature, relative humidity, and air pollution were monitored during the same period. Mixed models with a distributed lag structure were used to examine the effects of temperature on lung function while adjusting for individual characteristics and environmental factors. Low temperatures were significantly associated with decreases in PEF. The effects lasted for lag 0–2 days. For all participants, the cumulative effect estimates (lag 0–2 days) were −1.44 (−1.93, −0.94) L/min, −1.39 (−1.92, −0.86) L/min, −1.40 (−1.97, −0.82) L/min, and −1.28 (−1.69, −0.88) L/min for morning, noon, evening, and daily mean PEF, respectively, associated with 1 °C decrease in daily mean temperature. Generally, the effects of temperature were slightly stronger in boys than in girls for noon, evening, and daily mean PEF, while the effects were stronger in girls for morning PEF. PM2.5 had joint effects with temperature on children’s PEF. Higher PM2.5 increased the impacts of low temperature. Low ambient temperatures are associated with lower lung function in children in Baotou, China. Preventive health policies will be required for protecting children from the cold weather.

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ID Code: 88503
Item Type: Journal Article
Refereed: Yes
Keywords: Children, Lung function, Panel study, Temperature
DOI: 10.1007/s00484-014-0897-2
ISSN: 0020-7128
Divisions: Current > Research Centres > Centre for Health Research
Current > QUT Faculties and Divisions > Faculty of Health
Copyright Owner: Copyright ISB 2014
Deposited On: 11 Nov 2015 00:50
Last Modified: 11 Nov 2015 00:50

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