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Table 3 Incidences of GDM by screening and diagnostic criteria of IADPSG

From: Association between the cut-off value of the first trimester fasting plasma glucose level and gestational diabetes mellitus: a retrospective study from southern China

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)