Field Epidemiological Investigation
Prevalence and influencing factors of Kashin-Beck disease among children in mountain areas of Jilin Province
Yan Liu, Shuye Xu, Xueying Zhang, Yuanyuan Jiang, Guanyu Wu, Shuo Wang, Shuhua Zhao
Published 2015-07-20
Cite as Chin J Endemiol, 2015, 34(7): 501-503. DOI: 10.3760/cma.j.issn.2095-4255.2015.07.008
Abstract
ObjectiveTo understand the epidemic status quo and influencing factors of Kashin-Beck disease among children in mountain areas of Jilin Province.
MethodsTwo hundred eighty-two severe endemic areas in 18 counties were selected and stratified by random cluster sampling method, and the status quo of Kashin-Beck disease prevalence was investigated among 7-12 year-old children according to the "Diagnostic Criteria of Kashin-Beck Disease" (WS/T 207-2010). In the meantime, the annual household income and the proportion of economic crops replanted, grain out-sourced, and returning farmlands to forests and grass were surveyed in the disease affected areas.
ResultsA total of 14 162 children were investigated who had no clinical symptoms. Among them, 28 cases were detected positive using X-ray with a detection rate of 1.98‰, while most of the cases were metaphysis positive. The annual household income (≥5 000 Yuan vs.< 5 000 Yuan) in the year 2009- 2011 had a significant impact on the incidence of Kashin-Beck disease(1.47‰ vs. 3.67‰, χ2 = 6.179, P< 0.05), while the areas of returning farmland to forests and grass which accounted> 1% had no significant influence on the incidence compared with that ≤1% (3.30‰ vs. 1.57‰, χ2 = 3.876, P > 0.05); the areas of economic crops replanting which accounted > 10% had no significant influence on the incidence compared with that ≤10% (3.07‰ vs. 1.65‰, χ2 = 2.565, P > 0.05); the proportion of grain out-sourcing which accounted > 50% had no significant influence on the incidence compared with that ≤50% (3.07‰ vs. 1.65‰, χ2 = 2.565, P > 0.05).
ConclusionUp to 2012, the disease among 7-12 year-old children of the mountain areas of Jilin Province have basically met the standard of Kashin-Beck disease elimination and the situation remains stable; furthermore, the household income has a significant impact on the incidence of Kashin-Beck disease.
Key words:
Kashin-Beck disease; Epidemiological study; Data collection
Contributor Information
Yan Liu
School of Public Health, Jilin University, Changchun 130021, China
Shuye Xu
Xueying Zhang
Yuanyuan Jiang
Guanyu Wu
Shuo Wang
Shuhua Zhao