Table 2

Pregnancy outcomes among women with and without GDM diagnosed by CC criteria or IADPSGC

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
Gestational hypertension72 (4.1)9 (4.9)63 (4.0)0.04753 (3.5)31 (5.7)22 (2.2)0.0090.021
Gestational age at delivery (weeks)39 (38–40)39 (38–40)39 (38–40)0.51940 (38–40)39 (38–40)40 (39–40)0.0590.006
Prematurity (<37 weeks)112 (6.4)12 (6.5)100 (6.4)0.39187 (5.7)32 (5.9)55 (5.6)0.0490.039
Insulin treated39 (21.1)108 (19.9)
 Bolus33 (17.8)35 (6.5)
 Basal1 (0.5)45 (8.3)
 Bolus basal5 (2.7)28 (5.2)
Delivery0.0490.0260.002
 Vaginal1,021 (58.3)107 (57.9)914 (58.4)1,098 (72.0)378 (69.7)720 (73.2)
 Cesarean section453 (25.9)51 (27.6)402 (25.7)302 (19.7)120 (22.1)182 (18.5)
 Forceps276 (15.7)27 (14.5)249 (15.9)126 (8.3)44 (8.2)82 (8.3)
Birth weight (g)3,210
(2,928–3,515)3,200
(2,878–3,481)3,220
(2,935–3,535)0.5413,230
(2,910–3,515)3,200
(2,875–3,525)3,245
(2,913–3,508)0.6160.885
 >4,50025 (1.4)6 (3.2)19 (1.2)0.15014 (0.9)11 (2.0)3 (0.3)0.2770.277
 4,000–4,49946 (2.6)2 (1.1)44 (2.8)42 (2.7)15 (2.8)27 (2.7)
 2,500–4,0001,556 (88.9)165 (89.2)1,391 (88.9)1,371 (89.8)480 (88.6)891 (90.6)
 <2,500123 (7.1)12 (6.5)111 (7.1)99 (6.5)36 (6.6)63 (6.4)
LGA81 (4.6)9 (4.9)72 (4.6)0.91357 (3.7)26 (4.8)31 (3.2)0.0410.004
SGA134 (7.7)15 (8.1)119 (7.6)0.834109 (7.1)39 (7.2)70 (7.1)0.9380.042
Apgar score <7
 At 1 min67 (3.8)7 (3.8)60 (3.8)0.98253 (3.5)19 (3.5)34 (3.5)0.6200.015
 At 5 min7 (0.4)3 (1.6)4 (0.3)0.0536 (0.4)1 (0.2)5 (0.5)0.7610.294
Admission to NICU144 (8.17)23 (12.4)121 (7.7)0.00194 (6.16)52 (9.6)42 (4.3)0.0010.001
 Isolated hypoglycemia3 (0.17)3 (1.6)00.1505 (0.33)5 (0.9)00.0660.093
 Weight 2,000–2,499 g and MC55 (3.1)6 (3.2)49 (3.1)0.83932 (2.1)14 (2.6)18 (1.8)0.0310.021
 Weight 2,000–2,499 g without MC56 (3.2)6 (3.2)50 (3.2)0.87643 (2.82)22 (4.1)21 (2.1)0.0070.035
 Weight >2,500 g with MC*30 (1.7)8 (4.3)22 (1.4)0.00314 (0.92)11 (2.0)3 (0.3)0.0090.019
  • Data are median (quartile 1–quartile 3) or n (rate). MC, medical complication, including neonatal hypoglycemia, hypocalcemia, polycythemia, and/or the respiratory distress syndrome; NICU, neonatal intensive care unit.