Table 4. Aetiology and specific treatments.
| Total cohort (n = 938) |
Age < 65 years (n = 748) |
Age ≥ 65 years (n = 190) |
P values | |
| Data are presented as n (%). APAP: automatic positive airway pressure; OSA: obstructive sleep apnea. | ||||
| Aetiology | ||||
| Essential hypertension, yes | 657 (70.0%) | 520 (69.5%) | 137 (72.1%) | 0.487 |
| Primary aldosteronism | 192 (20.5%) | 164 (21.9%) | 28 (14.6%) | 0.026 |
| Reno-vascular hypertension | 30 (3.2%) | 18 (2.4%) | 12 (6.3%) | 0.006 |
| Renal disease | 37 (3.9%) | 25 (3.3%) | 12 (6.3%) | 0.038 |
| Pheochromocytoma | 10 (1.1%) | 10 (1.3%) | 0 | 0.109 |
| Cushing syndrome | 6 (0.6%) | 5 (0.7%) | 1 (0.5%) | 0.826 |
| Others | 6 (0.6%) | 6 (0.8%) | 0 | 0.181 |
| Diagnosis OSA during work-up | 50 (5.3%) | 38 (5.1%) | 12 (6.3%) | 0.498 |
| Specific treatment | ||||
| Percutaneous transluminal renal angioplasty | 30 (3.2%) | 18 (2.4%) | 12 (6.3%) | 0.006 |
| Adrenalectomy | 64 (6.8%) | 58 (7.8%) | 6 (3.2%) | 0.025 |
| Adrenal venous sampling | 168 (87.5%) | 144 (87.8%) | 24 (85.7%) | 0.757 |
| Adrenalectomy for primary aldosteronism | 49 (5.2%) | 44 (5.9%) | 5 (2.6%) | 0.072 |
| APAP for OSA | 38 (4.1%) | 29 (3.9%) | 9 (4.7%) | 0.591 |