Table 3.

Incidences of GDM by screening and diagnostic criteria of IADPSG

Screening and Diagnostic criteria	Overall (N = 28,030)	Non-GDM (N = 23,361)	GDM (N = 4669)
OGTT at 24–28 gestational weeks
0 h OGTT, mmol/L
FPG < 5.1, mmol/L, n (%)	27,037 (96.46)	23,361(100.00)	3676(78.73)
FPG >  = 5.1, mmol/L, n (%)	993 (3.54)	0(0.00)	993(21.27)
1 h OGTT, mmol/L
1 h OGTT < 10, mmol/L, n (%)	26,245 (93.63)	23,361(100.00)	2884(61.77)
1 h OGTT >  = 10.0, mmol/L, n (%)	1785 (6.37)	0(0.00)	1785(38.23)
2 h OGTT, mmol/L
2 h OGTT < 8.5, mmol/L, n (%)	25,724 (91.77)	23,361(100.00)	2363(50.61)
2 h OGTT >  = 8.5, mmol/L, n (%)	2306 (8.23)	0(0.00)	2306(49.39)
First trimester FPG, mmol/L
First trimester FPG < 4.735, mmol/L, n (%)	18,174(64.84)	15,793(67.60)	2381(51.00)
First trimester FPG >  = 4.735, mmol/L, n (%)	9856(35.16)	7568(32.40)	2288(49.00)