Research Article

Incidence and Contributing Factors of Persistent Hyperglycemia at 6–12 Weeks Postpartum in Iranian Women with Gestational Diabetes: Results from LAGA Cohort Study

Table 2

Clinical and laboratory characteristics of women with GDM based on results of 6–12 weeks postpartum glucose tolerance using 75-g OGTT.

CharacteristicsWomen with GDM ()Normal glucose tolerance ()Abnormal glucose tolerance () value
Mean (±SD)Mean (±SD)Mean (±SD)

Age (years)29.68 (5.25)29.71 (5.50)29.56 (4.29)0.87
Gestational age of diagnosis19.83 (8.46)21.29 (8.12)14.71 (7.86)<0.001
Total weight gain in pregnancy (kg)10.88 (6.29)10.85 (6.67)10.98 (4.78)0.90
Weight before pregnancy (kg)71.51 (12.10)71.08 (11.67)73.05 (13.57)0.37
Weight in last month of pregnancy (kg)82.33 (12.92)81.83 (12.51)84.06 (14.32)0.34
Gestational age at birth (weeks)38.97 (1.36)39.05 (1.29)38.66 (1.54)0.11
Birth weight of the child (g)3378.70 (557.33)3450.28 (549.61)3250.21 (572.36)0.10
Systolic BP pregnancy (mmHg)114.11 (20.26)111.89 (16.32)121.92 (124.05)0.003
Diastolic BP (mmHg)69.28 (12.38)68.10 (11.14)73.46 (15.43)0.01
FPG first visit pregnancy (g/dL)92.41 (11.63)91.15 (10.17)96.84 (15.06)0.007
FPG at time of OGTT (g/dL)97.80 (19.44)95.06 (17.23)107.41 (23.57)<0.001
1-hour pregnancy (g/dL)160.75 (35.80)158.69 (36.92)167.97 (30.94)0.15
2-hour pregnancy (g/dL)139.74 (35.72)136.21 (35.73)152.12 (33.26)0.01
FPG postpartum (g/dL)91.81 (18.25)85.78 (7.52)112.97 (27.24)<0.001
2-hour 75 gr OGTT postpartum (g/dL)106.19 (41.70)93.99 (19.09)149.05 (65.70)<0.001
Postpartum BMI (kg/m2)28.30 (4.43)27.86 (4.21)29.86 (4.86)0.01

Using -test.
GDM, gestational diabetes mellitus; BP, blood pressure; FPG, fasting plasma glucose; OGTT, oral glucose tolerance test; BMI, body mass index, defined as weight (kg)/height (m)2.