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目的了解西秀区小学生氟斑牙患病率及防氟知识知晓率水平,为燃煤污染型氟中毒防治工作提供依据。方法2013年12月采用多阶段随机抽样的方法,抽取西秀区3~6年级学生,按照WS/T 208-2011《氟斑牙诊断》进行全口恒牙氟斑牙检查,用统一问卷调查表开展防氟知识调查;采用非概率抽样方法,在上述被查人群抽取400名学生,采集即时尿样按照WS/T 89-1996《尿中氟化物的测定离子选择电极法》进行尿氟含量检测。结果调查西秀区3~6年级学生882人,氟斑牙患病率35.49% ,氟牙症指数0.75,分度以极轻最多占54.31% ;不同乡镇学校之间患病率差异有统计学意义(P<0.01)。小学生防氟知识知晓率24.49% ,不同乡镇学校、不同年级间知晓率差异有统计学意义(P<0.01)。400名学生尿氟含量检测,15人检测结果高于正常值,占3.75% 。结论西秀区3~6年级小学生氟斑牙患病率、防氟知识知晓率处于中等水平。
Objective To understand the prevalence of dental fluorosis in primary school students in Xixiu District and the level of awareness of fluoride-related knowledge so as to provide basis for the prevention and control of coal-borne fluorosis. Methods In December 2013, the students of grades 3-6 in Xixiu district were sampled by multi-stage random sampling method. The dental fluorosis was examined according to WS / T 208-2011 “Diagnosis of dental fluorosis” Fluorine knowledge survey; using non-probabilistic sampling method in the above-mentioned population was drawn 400 students collected real-time urine samples in accordance with the WS / T 89-1996 "Determination of urinary fluoride ion-selective electrode method for urinary fluoride content Detection. Results A total of 882 students aged 3-6 in Xixiu District were surveyed. The prevalence rate of dental fluorosis was 35.49%. The index of dental fluorosis was 0.75. The highest degree of division was 54.31%. The prevalence rates among different towns and townships were statistically different Significance (P <0.01). The awareness rate of anti-fluoride knowledge among primary school students was 24.49%. There was significant difference in the awareness rate among different township schools and different grades (P <0.01). 400 students urine fluoride test, 15 test results higher than normal, accounting for 3.75%. Conclusion The prevalence of dental fluorosis and the knowledge of fluorine-related knowledge among pupils aged 3-6 years in Xixiu District are at medium level.