Table 1. Baseline Clinical Characteristics.

Patient Characteristic	Value
Age, years	49.5 ± 11.6
Male	45 (44%)
Duration of hypertension, years	7.5 ± 6.9
Height, cm	163 ± 9
Body weight, kg	67 ± 14
BMI, kg/m2	25 ± 4
Number of anti-hypertensive agents	2.2 ± 1.2
Potassium, mmol/L	3.4 ± 0.7
Creatinine, mg/dL	1.1 ± 0.6
PAC, ng/dL	61 ± 40
PRA, ng/mL/hour	1.0 ± 3.1
Log PAC	1.7 ± 0.3
Log PRA	−0.8 ± 0.8
Log ARR	2.3 ± 0.9
SBP, mmHg	157 ± 23
DBP, mmHg	92 ± 14
Anti-hypertensive medication
CCB (%)	75 (74%)
ACEI	3 (3%)
ARB	32 (31%)
Diuretics	9 (9%)
β-blockers	41 (40%)
α-blockers	32 (31%)
Direct vasodilators	2 (2%)
Clonidine	3 (3%)
Spironolactone usage more than 8 weeks before adrenalectomy	28 (28%)

Values are mean ± SD. SBP = systolic blood pressure; DBP = diastolic blood pressure; CCB = calcium channel blocker; BMI = body mass index; ACEI = angiotensin converting enzyme inhibitor; ARB = angiotensin receptor blocker; PAC = plasma aldosterone concentration; PRA = plasma renin activity; Log PAC = log-transformed plasma aldosterone concentration; Log PRA = log-transformed plasma renin activity; Log ARR = log-transformed aldosterone to renin ratio.