Effect of the 2008 cold spell on preterm births in two subtropical cities of Guangdong Province, Southern China
| Autor: | Bei-Qi Wang, Jianpeng Xiao, Peng Wang, Ji-Yuan Zhou, Zhijiang Liang, Hualiang Lin, Yuanzhu Ma, Qingguo Zhao |
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| Rok vydání: | 2018 |
| Předmět: |
China
Environmental Engineering Subtropics 010501 environmental sciences 01 natural sciences 03 medical and health sciences symbols.namesake 0302 clinical medicine Pregnancy Air Pollution Cold spell medicine Environmental Chemistry Humans 030212 general & internal medicine Poisson regression Cities Waste Management and Disposal 0105 earth and related environmental sciences business.industry Infant Newborn Preterm Births medicine.disease Pollution Cold Temperature Premature birth Maternal Exposure Relative risk symbols Gestation Premature Birth Female business Demography |
| Zdroj: | The Science of the total environment. 642 |
| ISSN: | 1879-1026 |
| Popis: | Background A few studies have reported that low temperatures were associated with an increased risk of preterm birth. However, the effect of extreme weather events, such as cold spell, on preterm birth has not been studied in China. Objective This study was conducted to evaluate the impact of the 2008 cold spell on preterm birth in two subtropical cities of Guangdong Province. Methods Data of daily preterm birth, air pollution and meteorological variables from 2006 to 2010 were collected in Dongguan and Shenzhen. A Poisson regression with a distributed lag nonlinear model was used to investigate the association between the 2008 cold spell and daily rate of preterm birth for each city. Results During the 2008 cold spell, total vaginal preterm births were increased by 22.44% and 21.25% in Dongguan and Shenzhen, respectively. The effect of the cold spell on preterm births lasted for more than 1 week, the lag0–6 days cumulative relative risk (RR) is 1.32 (95% CI: 1.10–1.58) and 1.40 (95% CI: 1.18–1.68) in Dongguan and Shenzhen, respectively. The effects were found to be more pronounced for the pregnant women with 34–36 gestation weeks, maternal age Conclusion This study demonstrates that cold spell could increase the risk of preterm births in Dongguan and Shenzhen, and the effect lasts for more than 1 week. Specific measures should be considered to protect the pregnant women, especially the vulnerable subgroups. |
| Databáze: | OpenAIRE |
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