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探讨糖尿病（ＤＭ）空腹血糖（ＦＰＧ）诊断标准，以及口服葡萄糖耐量试验（ＯＧＴＴ）在ＤＭ诊断中的价值。方法：２ ０１６例可疑糖尿病受试者均接受 ＯＧＴＴ试验。以服糖后 ３０或 ６０和 １２０分的血糖均≥１１．１ｍｍｏｌ／Ｌ作为诊断ＤＭ的标准。按 ＦＰＧ分别≥７．８、７．０、６．７、６．１、５．６和 ５．０ ｍｍｏｌ／Ｌ由计算机进行分组统计。结果：ＦＰＧ≥７．８ ｍｍｏｌ／Ｌ的 ＤＭ检出率为 ７８．０９％（１０４８例／１ ３４２例），漏诊率为２１．９１％（２９４例／１ ３４２例），误诊率为３．１％（３３例／１ ０８１例）；ＦＰ≥７．０ ｍｍｏｌ／Ｌ的 ＤＭ检出率为 ８６．９％（１１６７例／１ ３４２例），漏诊率为 １３．０％（１７５例／１ ３４２例），误诊率５．６％（６９例／１ ２３６例）；ＦＰＧ≥６．１ｍｍｏｌ／Ｌ的ＤＭ检出率为９４．７％（１２７１例／１ ３４２例），漏诊率５．３％（７１例／１ ３４２例），误诊率１０．８％（１５４例／１ ４２５例）。直线相关分析表明 ＦＰＧ与服糖后 １２０分的血糖水平呈正相关（ｒ＝０．８６３ ９，Ｐ＜０．０００１）。当ＦＰＧ≥６．１ｍｍｏｌ／Ｌ时服糖后１２０分血糖为１１．０６ ｍｍｏｌ／Ｌ（１９９．０ ｍ
To investigate the diagnostic criteria of fasting plasma glucose (FPG) in diabetes mellitus (DM) and the value of oral glucose tolerance test (OGTT) in the diagnosis of DM. METHODS: Totally 2 016 suspected diabetic subjects underwent OGTT. Serum glucose at 30 or 60 and 120 minutes after treatment was ≥11.1 mmol / L as the standard for DM diagnosis. By FPG were ≥ 7.8, 7.0,6.7,6.1,5.6 and 5.0 mmol / L by the computer grouping statistics. Results: The detection rate of DM with FPG ≥ 7.8 mmol / L was 78.09% (1048 cases / 1 342 cases), the missed diagnosis rate was 21.91% (294 cases / 1 342 cases), the misdiagnosis rate was 3. (33 cases / 1 081 cases). The detection rate of DM with FP≥7.0 mmol / L was 86.9% (1167 cases / 1 342 cases), the rate of missed diagnosis was 13.0% (175 cases / 1 342 cases). The misdiagnosis rate was 5.6% (69 cases / 1 236 cases). The detection rate of FP with FPG≥6.1mmol / L was 94.7% (1271 cases / 1 342 cases) % (71 cases / 1 342 cases), the misdiagnosis rate was 10.8% (154 cases / 1 425 cases). Linear correlation analysis showed that there was a positive correlation between FPG and blood sugar level at 120 points (r = 0.863 9, P <0.0001). When FPG≥6.1mmol / L, the blood sugar of 120 minutes after oral administration of sugar was 11.06 mmol / L (199.0 m