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An evaluation of the effectiveness of prevention and control measures on coal-burning-borne endemic fluorosis in Guizhou Province / 中华地方病学杂志
Chinese Journal of Endemiology ; (12): 127-131, 2016.
Article in Zh | WPRIM | ID: wpr-489859
Responsible library: WPRO
ABSTRACT
Objective To evaluate the effects of health education and improved stoves on control of coalburning-borne endemic fluorosis in Guizhou Province.Methods In 2014,according to the detectable rate of dental fluorosis of children aged 8-12 before implementing control measures,11 counties were divided into three layers:low detection rate (detection rate was less than 60%),medium detection rate (detection rate from 60% to 90%) and high detection rate (detection rate was greater than 90%).One county was selected from each layer and two towns were selected in each county.According to the Diagnosis of Dental Fluorosis (WS/T 208-2011),dental fluorosis of all children aged 8-12 was examined in all towns;At the same time,in the 2 villages in each town,20households and students of one class in grade 4 to 6 were selected to survey knowledge about prevention and control of coal-burning-borne endemic fluorosis;and to survey the situation of improved stoves,drying and elutriation of corn and chillies,and related life behavior.Results The detectable rate of dental fluorosis of children aged 8-12was 5.49% (198/3 607),8.33% (72/864),12.46% (179/1 437),and it was significantly lower than before implementing control measures [41.88% (931/2 223),61.91% (4 863/7 855),91.25%(2 439/2 673),x2 =1 166.43,909.56,2 508.96,all P < 0.01].Correct answer rates of students about knowledge on endemic fluorosis were 78.03% (792/1 015),84.93% (1 465/1 725) and 80.18% (910/1 135),the correct answer rates of knowledge were significantly higher than those before implementing control measures [23.19% (640/2 760),47.41% (2 368/4 995) and 40.25% (3 405/8 460),x2 =947.96,736.61,644.69,all P < 0.01].Correct answer rates of family householders about knowledge on endemic fluorosis were 86.75% 047/400),95.25% (381/400) and 86.25% (345/400),the correct answer rates of knowledge were higher than those before implementing control measures [17.78% (80/450),37.20% (279/750) and 25.27% (139/550);x2 =402.97,359.49,344.55,all P < 0.01].The percentages of households whose stoves were qualified and can be used correctly to the total households were 96.25% (77/80),96.25% (77/80) and 93.75% (75/80),and before implementing control measures [4.92% (348/7 078),21.51% (7 461/34 693) and 6.73% (475/7 062)],and the differences were statistically significant (x2 =1 181.55,262.63,842.82,all P < 0.01).The percentages of households using clean energy in heating season to the total households increased from 0 (0/7 078),0 (0/34 693),0(0/7 062) to 98.75% (79/80),98.75% (79/80),96.25% (77/80).The rates of the three counties whose inhabitants could bake the chillies correctly were 96.25% (77/80),95.00% (76/80) and 97.50% (78/80),which were significantly higher than before implementing control measures [5.55%(5/90),26.00% (39/150),52.73% (58/110),x2=139.52,99.36,45.64,all P < 0.01].Who cooked chillies after washing were 93.75% (75/80),95.00% (76/80),93.75% (75/80),which were significantly higher than before implementing control measures [74.44% (67/90),87.33% (131/150),34.55% (38/110),x2 =11.47,3.91,67.36,all P < 0.05].Conclusion The effects of health education and improving stoves on coal-burning-borne endemic fluorosis in the three counties of Guizhou Province are remarkable.
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Full text: 1 Index: WPRIM Language: Zh Journal: Chinese Journal of Endemiology Year: 2016 Type: Article
Full text: 1 Index: WPRIM Language: Zh Journal: Chinese Journal of Endemiology Year: 2016 Type: Article