Impact of adopting the 2013 World Health Organization criteria for diagnosis of gestational diabetes in a multi-ethnic Asian cohort: a prospective study

Table 4 Abnormal glucose tolerance development of women by 4 to 5 years after delivery (n = 653)

Diabetes status	Group 1: Non-GDM based on both 1999 and 2013 WHO criteria (n = 498)	Group 2: Reclassified from GDM to non-GDM using 2013 WHO criteria (n = 61)	Group 3: Reclassified from non-GDM to GDM using 2013 WHO criteria (n = 21)	Group 4: GDM based on both 1999 and 2013 WHO criteria (n = 73)	P value
Normal, n (%)	439 (67.2)	35 (5.4)	15 (2.3)	40 (6.1)	< 0.001
Abnormal^a n (%)	59 (9.0)	26 (4.0)	6 (0.9)	33 (5.1)

GDM gestational diabetes mellitus, WHO World Health Organization
^aAbnormal status included diabetes mellitus (FG ≥7.0 mmol/l or PG ≥11.1 mmol/l), impaired fasting glucose (FG 6.1 to 6.9 mmol/l and PG < 7.8 mmol/l) and impaired glucose tolerance (FG < 7.0 mmol/l and PG ≥7.8 and < 11.1 mmol/l). Abnormal, n = 124 (19.0%)

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