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Investigation and Analysis on Current Situation of coal-burning Fluorosis Prevalence

Open Journal of Epidemiology 2017年第2期7卷 115-123页

作者： Wei Yan Jun Xie Xinshu Li Yalin Chen Wenli Huang Shuang Zhou Disease Control and Prevention Center of Chongqing City Chongqing China

Objective: The purpose of the paper is to provide the result from investigation on the current situation of coal-burning fluorosis prevalence in Chongqing City and make an assessment on the prevention and curing measures. Method: The Dean’s Method is applied to investigate on the fluorotic teeth of locally-born children aged between 8 to 12;investigate how modified cooking stoves are utilized by households and how food maize and hot pepper are being dried;and test the urinary fluorine content and pepper fluorine content. Result: The investigations show that, in the 661 villages with illness history from the 100 townships of 13 districts in Chongqing City, 11.28% (7464/ 66,162) of the children aged between 8 and 12 suffer from dental fluorosis;the stoves modified rate, qualified rate of modified stoves, and correct utilization rate of qualified modified stoves are respectively 100%, 98.82%, and 99.45%;and food maize and hot pepper’s drying rates are respectively 99.88% and 99.75%. Conclusion: The result shows that the coal-burning type fluorosis prevalence in the endemic area of Chongqing City has decreased dramatically, the preventive measure is effectively implemented, and a long-term preventive mechanism has preliminarily been established.

关键词： coal-burning Type Fluorosis Current Prevalence Conditions

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Analysis the Results of Control and Elimination of coal-burning-Borne Endemic Fluorosis in Chongqing City

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Open Journal of Epidemiology 2018年第3期8卷 145-152页

作者： Wei Yan Jun Xie Xinshu Li Shuang Zhou Disease Control and Prevention Center of Chongqing City Chongqing China

Objective: Discuss the analysis of the results of control and elimination of coal-burning fluorosis in Chongqing, and evaluate the effect of prevention and control. Methods: Dean’s method was used to investigate the fluorosis for the local children whose ages ranged from 8 to 12 years old, the use of improved stoves in residential households, the drying of corn and pepper for human consumption, and the results were evaluated and discussed according to the national standard for the control and elimination of coal-burning fluorosis. Results: The prevalence rate of dental fluorosis borne-disease in children whose ages ranged from 8 to 12 years old was about 11.28% in 661 historically diseased villages in 100 townships and in 13 districts and counties of Chongqing city. The correct utilization rates of improved stoves, qualified improved stoves, and qualified stoves were 100%, 98.82%, and 99.45%, respectively. The correct drying rates of corn and pepper for human consumption were 99.88% and 99.75% respectively. There are 24 uncontrolled villages, 225 controlled villages, and 412 villages in eliminated disease zones in administrative villages. There are 4 villages and counties in uncontrolled, 4 in controlled, and 5 eliminated areas in districts and counties. Conclusion: Fluorosis borne-disease caused by coal-burning in Chongqing has reached the control and elimination targets of the twelfth Five-year plan.

关键词： coal-burning Fluorosis Control and Elimination Evaluation

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