龋病调查一致性检验方法与结果分析

The coincidence of test and result analysis in the epidemiology of caries

目的：了解用来检验和控制系统误差的Ｋａｐｐａ值和ＣＶ值在实际应用中有什么关联或不同。方法：９名检查者对１５名受检者的２１９颗牙齿的龋病进行检查，将检查结果进行对照分析。结果：发现口腔专业人员经过专门培训作为调查者技术误差仍然较大。分析认为Ｋａｐｐａ值能够灵敏地反映出任何错误诊断，ＣＶ值不能够灵敏地反映出所有错误诊断。把Ｋ＜０．４定为不合格不够严格。结论：龋病流行病学调查中调查者必须经过严格的培训才能胜任这一工作。采用Ｋａｐｐａ值来检验和控制系统误差更为适当。把Ｋ＜０．６定为不合格更为合适。

Objective:This study is to realize the differences and relationship between Kappa value and CV value in the applications while both two were used to test or control systemic errors. Methods: Nine doctors including one referee were participated in this project.219 teeth from 15 adult persons were checked by the doctors.Results:The results demonstrated that there were significant technical differences between these doctors although they were professional and indicated that Kappa value was sensitive to all errors in techniques,whereas CV value was insensitive to these errors.Also the results suggested that it was not restrained that Kappa was considered to be unsatisfied when is value was below 0.4. Conclusion:The doctors who will participate in the epidemiological investigation of caries must be trained specially to take care of task.The Kappa value is more proper to be used to test or control the systemic errors in epdemiology of caries.And it is more appropriated that Kappa value is defined to be unsatisfied when it is below 0.6.