Table 3. Indications for GDM screening (N = 451)
Indications Non-screening group Screening group Total
N=40 (%) N=411 (%) N=451 (%)
Age > 30 years 21 (52.5) 310 (75.4) 331 (73.4)
Family history of DM 17 (42.5) 91 (22.1) 108 (24.0)
Urine sugar positive 0 28 (6.8) 28 (6.2)
Obvious obesity (BMI >30 kg/m2) 0 9 (2.2) 9 (2.0)
Weight gain > 2 kg/4wksor > 1 kg/2wks 0 8 (1.9) 8 (1.8)
Previous child > 4000 gm 0 6 (1.5) 6 (1.3)
Uterine size > gestational age 0 5 (1.2) 5 (1.1)
History of death fetus in utero 1 (2.5) 3 (0.7) 4 (0.9)
Polyuria or polydipsia 0 2 (0.5) 2 (0.4)
History of fetal anomaly 2 (5.0) 0 2 (0.4)
Polyhydramnios 0 1 (0.2) 1 (0.2)
Pregnancy induced hypertension 0 1 (0.2) 1 (0.2)
History of GDM in previous gestation 0 1 (0.2) 1 (0.2)