Table 3 Insulin-resistance indices in subjects with cardiac syndrome X vs. coronary artery disease (status without known diabetes mellitus)

HbA_1C (%)

5.8 (5.6, 6.1)

6.0 (5.7, 6.4)

Fasting glucose (mg/dl)

93 (87, 100)

94 (89, 102)

OGTT 30 min glucose (mg/dl)

163 (146, 184)

165 (149, 188)

OGTT 2 h glucose (mg/dl)

127 (106, 155)

143 (114, 186)

Fasting insulin (µIU/ml)

8.3 (5.1, 13.8)

9.4 (6.0, 15.7)

OGTT 30 min insulin (µIU/ml)

65.0 (38.9, 99.9)

61.4 (39.1, 94.7)

OGTT 2 h insulin (µIU/ml)

47.3 (34.6, 75.9)

68.3 (40.1, 116.7)

HOMA-IR (mg/dl × µIU/ml)

2.0 (1.2, 3.3)

2.2 (1.3, 3.8)

OGTT derived insulin-sensitivity index, Matsuda (mM × µIU/ml)⁻¹

87.1 (53.7, 143.0)

68.9 (46.8, 117.7)