of GDM (i.e., obesity, family history of type 2 diabetes, history
of GDM, history of delivering heavy babies, and higher
gestational age) at Nagasaki University Hospital from 1990
to 2010. Among the 116 patients, we found 68 patients who
were diagnosed with GDM as defined by the International
Association of Diabetes and Pregnancy Study Group (IADPSG)
criteria [1]. The patients with GDM were instructed with
appropriate nutrition therapy. Of the 68 GDM patients defined
by IADPSG criteria, 41 patients had undergone second 75-g
OGTT at least 4 weeks after nutrition therapy between 24 and
32 weeks of gestation and third 75-g OGTT 4–8 weeks after
delivery