Table 1

Comparison of maternal population screening for GDM during 1-year period

2-Step CC criteria (April 2011–March 2012)P: GDM vs. NGTIADPSGC (April 2012–March 2013)P: GDM vs. NGTP: CC cohort vs. IADPSGC cohort
AllGDMNGTAllGDMNGT
N1,7501851,5651,526542984
Age (years)32 (28–36)35 (32–38)32 (28–35)0.00132 (28–36)34 (30–37)32 (28–35)0.0010.237
Ethnicity0.0160.050.895
 Caucasian1,085 (62.0)131 (70.7)954 (61)945 (62.0)350 (64.6)595 (60.5)
 Hispanic597 (34.1)46 (25)551 (35)525 (34.4)166 (30.6)359 (36.5)
 African39 (2.2)6 (3.2)33 (2.1)21 (1.4)8 (1.5)13 (1.3)
 Asian22 (1.3)2 (1.1)20 (1.3)19 (1.2)11 (2)8 (0.8)
 Others7 (0.4)07 (0.6)16 (1.1)7 (1.4)9 (0.9)
Obstetric history0.050.00010.144
 No risk factors1,175 (67.1)115 (62.1)1,060 (67.7)1,059 (69.4)341 (62.9)718 (73)
 Miscarriage426 (24.3)42 (22.7)384 (24.5)364 (23.9)142 (26.3)222 (22.6)
 Prior GDM43 (2.5)9 (4.9)34 (2.2)31 (2.0)23 (4.2)8 (0.8)
 Others106 (6.1)19 (10.3)87 (5.6)72 (4.7)36 (6.6)36 (3.6)
Personal history0.0020.0010.154
 No risk factors1,506 (86.2)144 (78.7)1,362 (87.1)1,342 (87.9)449 (82.8)893 (90.8)
 Overweight82 (4.7)17 (9.3)65 (4.2)68 (4.5)46 (8.5)22 (2.2)
 Others160 (9.1)24 (13)136 (8.7)116 (7.6)47 (8.7)69 (7)
Family history0.0180.0020.370
 No risk factors806 (46.1)61 (33.0)745 (47.6)674 (44.2)215 (39.7)459 (46.6)
 DM147 (8.4)16 (8.7)131 (8.4)144 (9.4)50 (9.2)94 (9.6)
 MetS797 (45.5)109 (58.3)688 (43.9)708 (46.4)277 (51.1)431 (43.8)
Smoker0.1750.9780.039
 CS223 (12.7)27 (14.6)196 (12.5)158 (10.4)56 (10.3)102 (10.4)
 TPS246 (14.1)26 (14.1)220 (14.1)207 (13.6)73 (13.5)134 (13.6)
Parity0.2980.0010.082
 Primiparous769 (43.9)76 (38.3)693 (44.3)677 (44.7)204 (37.6)486 (49.4)
 2nd pregnancy555 (31.7)60 (32.4)495 (31.6)503 (33.8)181 (33.4)322 (32.7)
 >2 pregnancies426 (24.3)49 (26.5)377 (24.1)321 (21.5)157 (29.0)176 (17.9)
Pregestational BMI (kg/m2)22.7 (20.8–25.4)24.6 (22.5–28.7)22.5 (20.6–25.1)0.00122.8 (20.8–25.5)23.7 (21.4–27.0)22.2 (20.4–24.6)0.0010.650
Gestational BMI (kg/m2)25.0 (23.0–27.7)27.2 (24.5–30.1)24.8 (22.9–27.6)0.00125.1 (23.0–27.7)26.2 (23.9–29.5)24.6 (22.8–26.8)0.0010.514
Weight gain at 24–28 weeks of gestation6.0 (4.1–8.4)5.9 (3.8–8.1)6.0 (4.3–8.2)0.1326.0 (4.1–8.3)6.0 (4.1–8.0)6.0 (4.6–8.1)0.0170.300
  • Data are median (Q1–Q3) or n (%). CS, current smoker; MetS, metabolic syndrome; TPS, to-pregnancy smoker.