Figure 3.

(A) CGM data for a woman in the Diet group at 34 weeks and 3 days of pregnancy. SMBG monitoring did not reveal preprandial or postprandial hyperglycemia. CGM also showed that the glucose level remained below 140 mg/dL. This case was only treated with diet therapy, including the division of caloric intake into five to six meals. The controlled glycemic level remained within a narrow range until delivery. (B) CGM data for a woman in the Ins group at 33 weeks and 2 days of pregnancy. The CGM data were recorded after caloric restriction and the division of caloric intake into five to six meals. Postprandial hyperglycemia occasionally occurred at one hour after meals; therefore, the woman began receiving insulin injections immediately before meals. (C) CGM data for a woman in the Overt group at 31 weeks and 2 days of pregnancy. The woman had already exhibited postprandial hyperglycemia during SMBG; therefore, caloric restriction and insulin injections had been immediately initiated. The CGM data were recorded after insulin injection and diet therapy. (D) CGM data for a women in the Overt group at 34 weeks and 5 days of pregnancy. The woman had a high HbA1c level (6.7%) when she became pregnant, but her HbA1c level had decreased during her pregnancy. Therefore, she initially received dietary therapy alone. This CGM figure was recorded after dietary therapy, which included the division of caloric intake into five to six meals. Postprandial hyperglycemia was occasionally observed, but most of her glucose levels were below 140 mg/dL. This case continued to be treated with dietary therapy alone.