Table 2. The efficacy of GCT for GDM detection by using
OGTT as the diagnostic test
Result GDM Non-GDM Total
Positive 29 135 164
Negative 0 247 247
Total 29 382 411
Remark: sensitivity, specificity, positive and negative
predictive value of GCT = 100%, 64.66%, 17.68%, 0%
respectively