Table 1 Patient characteristics and medication details
| Â | Amlodipine group | Benidipine group | P value |
|---|---|---|---|
|  | (n = 52) | (n = 52) |  |
Sex (male/female) | 30/22 | 30/22 | - |
Age (years) | 67.5 ± 1.5 | 67.3 ± 1.4 | 0.97 |
Diabetes Mellitus (n(%)) | 23(44.2) | 24(46.1) | 0.84 |
Cause of CKD (n(%)) | Â | Â | Â |
   Diabetic nephropathy | 23(44.2) | 24(46.1) | 0.97 |
   Chronic glomerulonephritis | 15(28.8) | 14(27.0) | 0.82 |
   Hypertensive nephrosclerosis | 14(27.0) | 14(27.0) | - |
Hemoglobin A1c (%) (for diabetes) | 6.48 ± 0.15 | 6.43 ± 0.11 | 0.93 |
Systolic blood pressure (mmHg) | 145 ± 1.0 | 144 ± 0.9 | 0.46 |
Diastolic blood pressure (mmHg) | 81 ± 1.3 | 82 ± 1.4 | 0.73 |
Sodium (mEq/L) | 140 ± 0.3 | 140 ± 0.4 | 0.97 |
Potassium (mEq/L) | 4.4 ± 0.1 | 4.5 ± 0.1 | 0.17 |
Baseline therapy (n(%)) | Â | Â | Â |
   Details of ARB |  |  |  |
    Telmisartan 80 mg daily | 28(53.8) | 29(55.8) | 0.84 |
    Olmesartan 40 mg daily | 24(46.2) | 23(44.2) | 0.84 |
   ACE inhibitors | 4(7.7) | 3(5.8) | 0.69 |
   Diuretics | 7(13.4) | 6(11.5) | 0.76 |
   β-blockers | 4(7.7) | 5(9.6) | 0.73 |
   α-blockers | 4(7.7) | 4(7.7) | - |