Comparison of cost for each screening strategy of FPG test combined with further OGTT test at different FPG cut-off points.

aThe cut-off point of 6.1 mmol/L was added, because it is the FPG threshold for diagnosing Impaired Fasting Glycaemia (IFG).
bSubjects with previous diabetes diagnosis, and another 170 cases with FPG in the interval [5.0, 7.0) but without further OGTT test were excluded from this analysis.
cFor those cases with FPG in the interval [0, 5.0), no further OGTT test was conducted in this study.
dAccording to the mathematical modeling, a total of 65 undiagnosed diabetes cases were supposed to be identified by further OGTT test after FPG test among the cases.

a. 纳入6.1 mmol/L作为截断值，因其为诊断空腹血糖受损（Impaired Fasting Glycaemia, IFG）的空腹血浆葡萄糖（Fasting Plasma Glucose, FPG）阈值。
b. 本分析排除了既往确诊糖尿病的受试者，以及另外170例空腹血浆葡萄糖（FPG）水平处于区间[5.0, 7.0)但未进一步接受口服葡萄糖耐量试验（Oral Glucose Tolerance Test, OGTT）的病例。
c. 对于空腹血浆葡萄糖（FPG）水平处于[0, 5.0)区间的病例，本研究未开展进一步的口服葡萄糖耐量试验（OGTT）。
d. 经数学建模分析，本研究涉及的病例中，共计65例未确诊糖尿病病例可在完成空腹血浆葡萄糖检测后，通过进一步口服葡萄糖耐量试验被检出。