A new study found that a 1-hour post partum OGTT is more effective than the 2-hour test at predicting dysglycemia in women with or without a history of gestational diabetes.

The use of a 1-hour oral glucose tolerance test instead of a 2-hour OGTT may be more accurate in detecting diabetes postpartum, especially among women who had gestational diabetes during pregnancy ...

The one-hour test not only matched the 2-hour test but was even a stronger predictor of pre-diabetes status five years later.