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目的探讨加权秩和比法在评估我国农村水厂风险中的应用。方法于2013年6月,选择浙江省某县13家农村水厂进行现场卫生学调查,采用加权秩和比法对调查结果进行综合评估,并对其风险进行排序和分档。结果 13家水厂风险从高到低排列顺序依次为百丈泄、双源、坦洪、马口、茶塘、泉岩、甘塔、马岭、柳城、新宅、茭道、清溪和王宅水厂,其加权秩和比值依次为0.4263、0.4291、0.4484、0.4660、0.4675、0.4699、0.5122、0.5136、0.5986、0.6267、0.6321、0.6940、0.7154;分档结果显示,王宅、清溪、茭道和新宅水厂风险较低,其余水厂风险认为一般,没有出现风险高的水厂;对各档之间的水厂加权秩和比值做方差检验,分档具有统计学意义(F=36.17,P<0.001)。结论 13家水厂总体管理良好,风险处于较低水平;加权秩和比法可以作为评估我国农村水厂风险相对大小的方法,其优点是对风险大小进行合理分档。
Objective To explore the application of weighted rank sum ratio method in assessing the risk of rural waterworks in China. Methods In June 2013, 13 rural waterworks in a county of Zhejiang Province were selected for site hygiene survey. The weighted rank sum ratio method was used to evaluate the survey results comprehensively, and the risks were ranked and sub-files. Results The risk ranking of the 13 water plants ranked Baishizi, Shuangyuan, Tanhong, Shekou, Changtang, Quanyan, Ganta, Maling, Liucheng, Xinzhai, Gongdao, Qingxi and Wangzhai Waterworks in descending order , The weighted rank sum ratio of 0.4263,0.4291,0.4484,0.4660,0.4675,0.4699,0.5122,0.5136,0.5986,0.6267,0.6321,0.6940,0.7154; sub-file results show that Wang House, Cheonggyecheon, Tao Road and the new house water Plant risk is low, the rest of the water plant risk is considered normal, there is no risk of high water plant; between the files of the water plant weighted rank sum ratio of variance test, sub-file was statistically significant (F = 36.17, P <0.001 ). Conclusion The 13 water plants are generally well managed and the risks are at a low level. The weighted rank sum ratio method can be used as a method to assess the relative risk of rural waterworks in China. The advantage of this method is that the risk level is appropriately divided.