Primary syphilis cases in Guangdong Province 1995-2008: Opportunities for linking syphilis control and regional developmentReportar como inadecuado

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BMC Public Health

, 10:793

First Online: 30 December 2010Received: 17 June 2010Accepted: 30 December 2010DOI: 10.1186-1471-2458-10-793

Cite this article as: Yang, LG., Tucker, J.D., Yang, B. et al. BMC Public Health 2010 10: 793. doi:10.1186-1471-2458-10-793


BackgroundSyphilis cases have risen in many parts of China, with developed regions reporting the greatest share of cases. Since syphilis increases in these areas are likely driven by both increased screening and changes in sexual behaviours, distinguishing between these two factors is important. Examining municipal-level primary syphilis cases with spatial analysis allows a more direct understanding of changing sexual behaviours at a more policy-relevant level.

MethodsIn this study we examined all reported primary syphilis cases from Guangdong Province, a southern province in China, since the disease was first incorporated into the mandatory reporting system in 1995. Spatial autocorrelation statistics were used to correlate municipal-level clustering of reported primary syphilis cases and gross domestic product GDP.

ResultsA total of 52,036 primary syphilis cases were reported over the period 1995-2008, and the primary syphilis cases increased from 0.88 per 100,000 population in 1995 to 7.61 per 100,000 in 2008. The Pearl River Delta region has a disproportionate share 44.7% of syphilis cases compared to other regions. Syphilis cases were spatially clustered p = 0.01 and Moran-s I analysis found that syphilis cases were clustered in municipalities with higher GDP p = 0.004.

ConclusionsPrimary syphilis cases continue to increase in Guangdong Province, especially in the Pearl River Delta region. Considering the economic impact of syphilis and its tendency to spatially cluster, expanded syphilis testing in specific municipalities and further investigating the costs and benefits of syphilis screening are critical next steps.

Electronic supplementary materialThe online version of this article doi:10.1186-1471-2458-10-793 contains supplementary material, which is available to authorized users.

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Autor: Li-Gang Yang - Joseph D Tucker - Bin Yang - Song-Ying Shen - Xi-Feng Sun - Yong-Feng Chen - Xiang-Sheng Chen


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