Spatial Patterns of Malaria Reported Deaths in Yunnan Province, China

Bi, Y., Hu, W., Yang, H., Zhou, X.-N., Yu, W., Guo, Y., & Tong, S. (2012) Spatial Patterns of Malaria Reported Deaths in Yunnan Province, China. American Journal of Tropical Medicine and Hygiene, 88(3), pp. 526-535.

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Abstract

Malaria has been a heavy social and health burden in the remote and poor areas in southern China. Analyses of malaria epidemic patterns can uncover important features of malaria transmission. This study identified spatial clusters, seasonal patterns, and geographic variations of malaria deaths at a county level in Yunnan, China, during 1991–2010. A discrete Poisson model was used to identify purely spatial clusters of malaria deaths. Logistic regression analysis was performed to detect changes in geographic patterns. The results show that malaria mortality had declined in Yunnan over the study period and the most likely spatial clusters (relative risk [RR] = 23.03–32.06, P < 0.001) of malaria deaths were identified in western Yunnan along the China–Myanmar border. The highest risk of malaria deaths occurred in autumn (RR = 58.91, P < 0.001) and summer (RR = 31.91, P < 0.001). The results suggested that the geographic distribution of malaria deaths was significantly changed with longitude, which indicated there was decreased mortality of malaria in eastern areas over the last two decades, although there was no significant change in latitude during the same period. Public health interventions should target populations in western Yunnan along border areas, especially focusing on floating populations crossing international borders.

Impact and interest:

22 citations in Scopus
20 citations in Web of Science®
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ID Code: 67409
Item Type: Journal Article
Refereed: Yes
Keywords: malaria, China, patterns, public health, disease
DOI: 10.4269/ajtmh.2012.12-0217
ISSN: 0002-9637
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > PUBLIC HEALTH AND HEALTH SERVICES (111700)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Public Health & Social Work
Deposited On: 06 Jan 2015 02:11
Last Modified: 10 Apr 2017 08:05

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