| Association therapeutic | OH+ | OH− | Effective | P-value |
| Bitherapy | 15 (31.91%) | 39 (11.53%) | 54 | 0.02 |
| Triple therapy | 29 (61.70%) | 297 (87.86%) | 326 | 0.02 |
| Monotherapy (Central Antihypertensives) | 3 (6.38%) | 2 (0.59%) | 5 | 0.02 |