 |
Landy et al (1995), in an effort
to avoid the two-step testing, suggested that increasing the diagnostic
threshold of blood glucose level during the GCT from >
140 mg/dl to ³ 186 mg/dl, could serve as an
alternative for the OGTT. Using the OGTT as the gold standard, they showed that
the Positive Predictive Value (PPV) of test was 78.6 %, meaning that almost 79%
of women with the proposed blood glucose levels during a GCT, were correctly
classified as diabetic without the need for further testing. The prevalence of
GDM among the population studied by Landy and collaborators was 39.2%.
|
