Laboratory diagnosis of gestational diabetes mellitus.

The article presents the author's views on the diagnosis of gestational diabetes mellitus (GDM) in the Hyperglycemia and Adverse Pregnancy Outcomes (HAPO) study. They opine that clarification of the risk of adverse outcomes associated with maternal glucose intolerance is the aim of the HAPO study. They comment that consensus among experts about the diagnosis of GDM remains elusive despite reviewing the same scientific evidence.