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Table 3 The maternal characteristics and 75-g OGTT results during pregnancy: The difference between women who developed postpartum diabetes and those who did not

From: Risk factors associated with the development of postpartum diabetes in Japanese women with gestational diabetes

  Diabetes (n = 32) Non-diabetes (n = 274) P value*
Maternal age (years) 34.3 ± 4.6 32.9 ± 5.1 0.14
Nulliparous (%) 11 (34%) 125 (46%) 0.22
Family history of diabetes (%) 13 (41%) 110 (41%) 1.0
Pre-pregnancy BMI (kg/m2) 25.9 ± 5.7 23.2 ± 4.7 0.0032
Pre-pregnancy BMI ≥25 kg/m2 17 (53%) 76 (28%) 0.0031
GA at OGTT (weeks) 23.8 ± 7.9 24.3 ± 6.6 0.71
JSOG criteria period 11 (34%) 105 (38%) 0.66
OGTT results during pregnancy
 Fasting PG (mg/dl) 89 ± 11 86 ± 10 0.091
 1-h PG (mg/dl) 195 ± 25 185 ± 27 0.056
 2-h PG (mg/dl) 172 ± 32 160 ± 25 0.016
 HbA1c (%) (n = 269) 5.8 ± 0.4 (n = 29) 5.5 ± 0.4 (n = 240) <0.001
Insulin therapy during pregnancy (%) 25 (78%) 137 (51%) 0.0031
Weight gain during pregnancy (kg) 7.6 ± 3.9 7.2 ± 5.2 0.72
Follow-up period (weeks) (median, range) 59 ± 53 (47, 7–230) 69 ± 62 (58, 7–291) 0.39
At least two follow-up OGTT (%) 26 (81%) 203 (74%) 0.63
More than 12 months follow-up OGTT (%) 14 (44%) 151 (55%) 0.40
  1. * P values represent comparisons between women who developed diabetes and those who did not using Student’s t-test or a chi-squared test
  2. BMI body mass index, GA gestational age, OGTT oral glucose tolerance test, JSOG Japan Society of Obstetrics and Gynecology, PG plasma glucose