Table 3.

Results of previous routine blood glucose testing between 24 and 28 weeks of gestation according to the subsequent diagnosis of gestational diabetes mellitus in late pregnancy

Characteristics	100-g OGTT in late pregnancy		P-value
	Positive (n=23)	Negative (n=146)
50-g GCT (mg/dL)	127 (80–165)	123 (68–176)	0.374
100-g OGTT	6 (26.1)	28 (19.2)	0.442
Fasting (mg/dL)	83 (75–91)	84 (69–107)	0.791
1-hour (mg/dL)	166 (159–175)	152 (109–199)	0.177
2-hour (mg/dL)	156 (134–169)	128 (90–164)	0.018
3-hour (mg/dL)	128 (119–138)	109 (48–157)	0.044

Values are presented as number of patients (%) or median value and range.

OGTT, oral glucose tolerance test; GCT, glucose challenge test.