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|Title:||The glucose challenge test: a screening test for gestational diabetes mellitus.|
|Authors:||Chua, S. |
|Citation:||Chua, S., Thai, A.C., Kek, L.P., Yeoh, S.C., Ratnam, S.S. (1993-08). The glucose challenge test: a screening test for gestational diabetes mellitus.. Singapore Medical Journal 34 (4) : 303-305. ScholarBank@NUS Repository.|
|Abstract:||The 50g glucose challenge test (GCT) was evaluated as a method to screen for gestational diabetes in 540 low-risk pregnant women to establish its sensitivity and specificity, as well as to establish a relevant threshold plasma glucose value above which a diagnostic 75g oral glucose tolerance test (OGTT) would be indicated. If a threshold of 140 mg/dl is used, the diagnostic yield would be 28.5%. At a threshold of 130 mg/dl, the diagnostic yield fell to 25.4%; the sensitivity rose to 87.7% and the specificity declined to 67.1%. There was progressive increase in diagnostic sensitivity when the GCT was performed after 24 weeks without significant decrease in specificity. In low-risk populations, a 50g GCT should be performed between 24-28 weeks gestation.|
|Source Title:||Singapore Medical Journal|
|Appears in Collections:||Staff Publications|
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