Table 2.

Clinical Characteristics of Propensity Score-matched Pairs of Subjects in Protocol 2.

Variables	Control (n = 18)	Nonfunctioning adrenal adenomas (n = 18)	P value
Age, year	65 ± 14	65 ± 10	0.92
Sex, men/women	13/5	14/4	0.70
Body mass index, kg/m2	26.1 ± 4.7	25.8 ± 2.6	0.85
Systolic blood pressure, mmHg	137 ± 15	134 ± 15	0.56
Diastolic blood pressure, mmHg	83 ± 12	79 ± 11	0.37
Heart rate, bpm	71 ± 12	74 ± 12	0.55
Total cholesterol, mmol/L	4.60 ± 1.09	4.84 ± 0.72	0.47
Triglycerides, mmol/L	1.75 ± 1.52	1.93 ± 1.61	0.76
High-density lipoprotein cholesterol, mmol/L	1.42 ± 0.52	1.32 ± 0.49	0.57
Low-density lipoprotein cholesterol, mmol/L	2.64 ± 0.83	2.84 ± 0.62	0.41
Glucose, mmol/L	6.94 ± 1.61	6.11 ± 1.11	0.09
Hemoglobin A1c, %	6.2 ± 0.9	5.9 ± 0.8	0.44
Blood urea nitrogen, mmol/L	5.00 ± 1.43	5.36 ± 1.79	0.43
Creatinine, μmol/L	63.65 ± 13.26	76.02 ± 13.26	0.07
Current smoker, n (%)	1 (5.6)	3 (16.7)	0.28
Medical history, n (%)
Hypertension	15 (83.3)	15 (83.3)	1.00
Dyslipidemia	11 (61.1)	11 (61.1)	1.00
Diabetes mellitus	4 (22.2)	4 (22.2)	1.00
Previous coronary heart disease	0 (0.0)	0 (0.0)	N/A
Previous stroke	1 (5.6)	3 (16.7)	0.28
Medication, n (%)
Calcium channel blockers	11 (61.1)	8 (44.4)	0.32
Angiotensin-converting enzyme inhibitors	0 (0.0)	0 (0.0)	1.00
Angiotensin II receptor blockers	3 (16.7)	6 (33.3)	0.24
Mineralocorticoid receptor blockers	0 (0.0)	0 (0.0)	N/A
Beta-blockers	3 (16.7)	1 (5.6)	0.28
Alpha-blockers	0 (0.0)	1 (5.6)	0.23
Statins	6 (27.8)	5 (27.8)	0.72
Nitrates	0 (0.0)	0 (0.0)	N/A
Medically treated diabetes mellitus
Any	2 (11.1)	1 (5.6)	0.54
Insulin-dependent	0 (0.0)	0 (0.0)	N/A
Flow-mediated vasodilation, %	3.4 ± 2.4	2.4 ± 1.9	0.19
Nitroglycerine-induced vasodilation, %	13.6 ± 4.6	12.1 ± 4.2	0.35

N/A indicates not applicable.

Results are presented as means ± SD for continuous variables and percentages for categorical variables.