摘要
探讨口服葡萄糖耐量试验（ＯＧＴＴ）中空腹血糖（ＦＰＧ）和２小时血糖（２ｈＰＧ）的关系，以寻找最佳的ＦＰＧ值作为筛选糖尿病（ＤＭ）的指标。方法对８１５例无ＤＭ病史者进行ＯＧＴＴ测试，分析ＦＰＧ和２ｈＰＧ之间的关系。结果和结论ＯＧＴＴ中，ＦＰＧ和２ｈＰＧ水平呈显著相关，一致性检验表明，卡帕值为０．４２，有中度一致性。以ＷＨＯＤＭ诊断标准中，２ｈＰＧ≥１１．１ｍｍｏｌ／Ｌ（２００ｍｇ／ｄｌ）作为黄金标准，ＦＰＧ≥７．８ｍｍｏｌ／Ｌ具有１００％的特异度，故可用于明确诊断；当ＦＰＧ介于６．６７ｍｍｏｌ／Ｌ（１２０ｍｇ／ｄｌ）和７．０ｍｍｏｌ／Ｌ（１２６ｍｇ／ｄｌ）之间时，它们的假阳性和假阴性之和均较小，且它们之间的差异也较小，其中以７．０ｍｍｏｌ／Ｌ的特异性最高，故可作为诊断指标；依据ＲＯＣ，ＦＰＧ６．３９ｍｍｏｌ／Ｌ（１１５ｍｇ／ｄｌ）为最佳临界值，可作为ＤＭ筛选的标准。
bjective To analyze the relationship between fasting and 2 hours' plasma glucose in OGTT and find out the optimal value of fasting plasma glucose for the screening of diabetes mellitus.Methods The OGTT was performed in 815 subjects without history of diabetes mellitus.Statistic analysis was done.Results and conclusion There was remarkable correlation between FPG and 2hPG,and moderate consistency with Kappa value of 042.With the 2hPG≥111mmol/L as a golden standard,the specificity of FPG≥78mmol/L was 100%,which was significant for confirming a diagnosis.When the FPG was between 667mmol/L and 70mmol/L,the sum of false positive and false negative rate was less and FPG≥70mmol/L with higher specificity was significant as a diagnostic criterion. According to the ROC,FPG level of 639mmol/L was an optimal critical value.
出处
《中国实验诊断学》
1998年第1期24-26,共3页
Chinese Journal of Laboratory Diagnosis
