TABLE 1.

Clinical Characteristics of Included 104 PA Patients with Adrenal Micronodules

Clinical characteristicsTotal (n = 104)Surgically eligible group (n = 82)Surgically ineligible group (n = 22)P
Age (y)48.4 ± 9.948.5 ± 10.048.0 ± 9.70.84
Sex<0.05
 Male573819
 Female47443
Body mass index (kg/m2)27.2 ± 5.426.2 ± 4.031.3 ± 7.6<0.05
Hypertension104 (100%)82 (100%)22 (100%)1
Refractory hypertension26 (25.0%)17 (20.7%)4 (44.4%)0.54
Stage 1 hypertension2 (1.9%)1 (1.2%)1 (4.5%)0.24
Stage 2 hypertension28 (26.9%)25 (30.5%)3 (13.6%)
Stage 3 hypertension74 (71.2%)56 (68.3%)18 (81.8%)
Duration of hypertension (y)8.1 ± 7.98.8 ± 7.111.9 ± 7.50.09
Systolic pressure (mm Hg)179.8 ± 22.3180.2 ± 22.7178.5 ± 21.10.75
Diastolic pressure (mm Hg)110.9 ± 14.3110.5 ± 14.1112.8 ± 15.30.50
Preoperative defined daily dose2.7 ± 1.22.6 ± 1.13.2 ± 1.4<0.05
Hypokalemia69 (66.3%)55 (67.1%)14 (63.6%)0.28
Duration of hypokalemia (y)3.1 ± 3.02.9 ± 2.83.8 ± 3.10.22
Serum potassium (mmol/L)3.0 ± 0.53.0 ± 0.63.0 ± 0.50.62
Aldosterone-to-renin ratio ([ng/dL]/[ng/mL/h])131.0 ± 83.7131.1 ± 83.0130.6 ± 88.10.98
Serum aldosterone (ng/dL)20.4 ± 5.720.4 ± 5.920.7 ± 5.20.82
Lesion located on right36 (34.6%)31 (37.8%)5 (22.7%)0.56
Lesion located on left29 (27.9%)25 (30.5%)4 (18.2%)
Lesion bilateral39 (37.5%)26 (31.7%)13 (59.1%)
  • Qualitative data are number; continuous data are mean and SD.