TABLE 1

Characteristics of Study Population

Characteristic	Control group (n = 22)	At-risk group (n = 34)
Age (y)	57 ± 6	56 ± 6
Sex (F/M)	14/8	19/15
Hypertension	0	16
Hypercholesterolemia	0	10
Smoking	0	8
Lipid status
Serum cholesterol level (mg/dL)	186 ± 50	218 ± 40*
Serum LDL level (mg/dL)	114 ± 40	144 ± 24*
Serum HDL level (mg/dL)	53 ± 12	47 ± 12
Triglyceride level	125 ± 38	140 ± 52
Glucose level (mg/dL)	88 ± 7	95 ± 15
Epicardial LA (mm²)
Before CPT	5.01 ± 1.07	5.13 ± 1.49
After CPT	5.88 ± 0.89	4.24 ± 1.12
% Change	19 ± 9	−16 ± 12*
MBF (mL · g⁻¹ · min⁻¹)
Before CPT	0.77 ± 0.16	0.76 ± 0.20
After CPT	1.34 ± 0.34	0.83 ± 0.25
% Change	74 ± 23	11 ± 19*
Coronary vascular resistance (mm Hg/mL · g⁻¹ · min⁻¹)
Before CPT	114 ± 23	122 ± 27
After CPT	80 ± 14	128 ± 32
% Change	−43 ± 13	6 ± 17*