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Table 3 The number of patients categorized as having normoglycaemia, intermediate hyperglycaemia and DM according to HbA 1c aversus OGTTbresults, and the distribution of patients within the different glycaemic categories

From: HbA1c versus oral glucose tolerance test as a method to diagnose diabetes mellitus in vascular surgery patients

  

HbA1ca

OGTTb

Subjects

Normo-glycaemia (%)

Intermediate hyperglycaemia (%)

Diabetes mellitus (%)

Total

275

42 (15.3)

193 (70.2)

40 (14.6)

Normoglycaemia

152

27 (17.8)

120 (79.0)

5 (3.3)

Intermediate hyperglycaemia

90

13 (14.4)

57 (63.3)

20 (22.2)

Diabetes mellitus

33

2 (6.1)

16 (48.5)

15 (45.5)

  1. a HbA1c ≥ 6.5% (48 mmol/mol) = diabetes mellitus, HbA1c range of 5.7-6.4% (39-46 mmol/mol) = intermediate hyperglycaemia, and HbA1c < 5.7% (39 mmol/mol) = normoglycaemia.
  2. b FPG + 2-h value. DM = FPG ≥ 7.0 mmol/l and/or two-h value ≥ 11.1 mmol/l. Intermediate hyperglycaemia = IGT defined as FPG < 7.0 mmol/L and a 2-h-value between 7.8 mmol/L and 11.1 mmol/L, and IFG defined as fasting glucose value between 6.1 mmol/L and 7.0 mmol/L with a normal 2-h-value. Normoglycaemia = FPG < 6.1 mmol/L and a 2-h-value < 7.8 mmol/L.