Impacts of Tropical Cyclones and Accompanying Precipitation on Infectious Diarrhea in Cyclone Landing Areas of Zhejiang Province, China

International Journal of Environmental Research and Public Health

Zhengyi Deng²  Huanmiao Xun²  Maigeng Zhou¹  Baofa Jiang²  Songwang Wang³  Qing Guo³  Wei Wang²  Ruihua Kang²  Xin Wang²  Gifty Marley²  Wei Ma²  Kristie L. Ebi⁴ 

[1] National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Road, Changping District, Beijing 102206, China; E-Mail:;Department of Epidemiology and Health Statistics, School of Public Health, Shandong University, 44 West Wenhua Road, Jinan 250012, China; E-Mails:;National Center for Public Health Surveillance and Information Services, Chinese Center for Disease Control and Prevention, 155 Changbai Road, Changping District, Beijing 102206, China; E-Mails:Department of Epidemiology and Health Statistics, School of Public Health, Shandong University, 44 West Wenhua Road, Jinan 250012, China;

关键词: tropical cyclone;    precipitation;    infectious diarrhea;    bacillary dysentery;    risk factor;   

DOI  :  10.3390/ijerph120201054

来源: mdpi

【 摘 要 】

Background: Zhejiang Province, located in southeastern China, is frequently hit by tropical cyclones. This study quantified the associations between infectious diarrhea and the seven tropical cyclones that landed in Zhejiang from 2005–2011 to assess the impacts of the accompanying precipitation on the studied diseases. Method: A unidirectional case-crossover study design was used to evaluate the impacts of tropical storms and typhoons on infectious diarrhea. Principal component analysis (PCA) was applied to eliminate multicollinearity. A multivariate logistic regression model was used to estimate the odds ratios (ORs) and the 95% confidence intervals (CIs). Results: For all typhoons studied, the greatest impacts on bacillary dysentery and other infectious diarrhea were identified on lag 6 days (OR = 2.30, 95% CI: 1.81–2.93) and lag 5 days (OR = 3.56, 95% CI: 2.98–4.25), respectively. For all tropical storms, impacts on these diseases were highest on lag 2 days (OR = 2.47, 95% CI: 1.41–4.33) and lag 6 days (OR = 2.46, 95% CI: 1.69–3.56), respectively. The tropical cyclone precipitation was a risk factor for both bacillary dysentery and other infectious diarrhea when daily precipitation reached 25 mm and 50 mm with the largest OR = 3.25 (95% CI: 1.45–7.27) and OR = 3.05 (95% CI: 2.20–4.23), respectively. Conclusions: Both typhoons and tropical storms could contribute to an increase in risk of bacillary dysentery and other infectious diarrhea in Zhejiang. Tropical cyclone precipitation may also be a risk factor for these diseases when it reaches or is above 25 mm and 50 mm, respectively. Public health preventive and intervention measures should consider the adverse health impacts from tropical cyclones.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.