Objective To evaluate the effect of health education in 11 endemic fluorosis areas of tea drinking type in Aba prefecture,and to provide scientific basis for further prevention and control.Methods According to stratified random sampling,in April 2021,6 townships(towns)were selected from the 11 areas of tea-drinking type endemic fluorosis in Aba Prefecture,and 2 temples were selected from the 6 townships(towns)(if there are no temples in the selected townships,they can be supplemented in neighboring townships),and 3 more villages were selected from each township.A unified questionnaire was used to conduct a baseline survey on the knowledge and practice of tea-drinking type endemic fluorosis among students in grade 5th,housewives and monks in temple.Health education intervention was carried out according to the baseline survey results,and the effect evaluation was carried out for the same target population in December 2021.x2 test was used to compare the awareness rate between baseline investigation and effect evaluation,the overall difference was considered statistically significant.Bonferroni method was used for pairwise comparison.After correction,the test level was α'=0.016 7.The paired x2 was used to compare the statistical difference before and after intervention in the same population,the obtained data were cleared and analyzed using Excel 2007 and SPSS 27.0 softwares,and the test level was α=0.05.Results A total of 1 999 students,975 housewives and 630 monks were surveyed.The awareness rates of the three groups in baseline survey were 73.05％,60.62％and 71.75％,respectively.And the awareness rates of effect evaluation were 91.81％,89.26％and 88.60％,respectively.After intervention,the awareness rate of the 3 groups increased by 18.76％,17.51％and 27.98％,respectively,and the differences were statistically significant(x2students=728.685,x2housewives=605.359,x2monks=184.662,all P＜0.05).Conclusions The health education evaluation in the areas of tea-drinking type endemic fluorosis in Aba Prefecture has reached the established goal.Comprehensive prevention and control measures should be continued to carry out the health education in those areas,so that to effectively control the hazards of tea-drinking type endemic fluorosis.At the same time,it is suggested to add contents such as changing dietary structure and how to dispose and store high fluorine brick tea to the core information.
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