Spatial patterns of malaria reported deaths in Yunnan Province, China

Bi, Yan, Hu, Wenbiao, Yang, Henling, Zhou, Xiao-Nong, Yu, Weiwei, Guo, Yuming and Tong, Shilu (2013) Spatial patterns of malaria reported deaths in Yunnan Province, China. American Journal of Tropical Medicine and Hygiene, 88 3: 526-535. doi:10.4269/ajtmh.2012.12-0217

Author Bi, Yan
Hu, Wenbiao
Yang, Henling
Zhou, Xiao-Nong
Yu, Weiwei
Guo, Yuming
Tong, Shilu
Title Spatial patterns of malaria reported deaths in Yunnan Province, China
Journal name American Journal of Tropical Medicine and Hygiene   Check publisher's open access policy
ISSN 0002-9637
Publication date 2013-03
Year available 2012
Sub-type Article (original research)
DOI 10.4269/ajtmh.2012.12-0217
Volume 88
Issue 3
Start page 526
End page 535
Total pages 10
Place of publication Deerfield, IL, United States
Publisher American Society of Tropical Medicine and Hygiene
Collection year 2013
Language eng
Formatted 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.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online 26 December 2012.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
School of Public Health Publications
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Created: Wed, 16 Jan 2013, 15:51:32 EST by Geraldine Fitzgerald on behalf of School of Public Health