| Autor: |
Chua S; Department of Obstetrics and Gynaecology, National University Hospital, Singapore., Thai AC, Kek LP, Yeoh SC, Ratnam SS |
| Jazyk: |
angličtina |
| Zdroj: |
Singapore medical journal [Singapore Med J] 1993 Aug; Vol. 34 (4), pp. 303-5. |
| Abstrakt: |
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. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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