Table 1. Baseline characteristics of the patients, according to the adherence to treatment, measured by plasmatic levels of hydrochlorothiazide (mean ± SD or n[%], when appropriate).
| Characteristics | Adherence (n = 44) | Non-adherence (n = 12) | P |
| Women | 29 (65.9) | 7 (58.3) | 0.737 |
| Age | 62.5±9.1 | 58.7±11.3 | 0.229 |
| Years of education | 6.7±4.4 | 6.67±3.0 | 0.991 |
| Pharmacotherapeutic follow-up | 21 (47.7) | 5 (41.7) | 0.963 |
| Duration of hypertension >10 years | 33 (75.0) | 11 (91.7) | 0.427 |
| Individuals with uncontrolled hypertension >2 years | 26 (59.1) | 9 (75.0) | 0.503 |
| Patients with white coat syndromea | 20 (45.5) | 5 (41.7) | 0.999 |
| Diabetes mellitus | 16 (36.4) | 6 (50.0) | 0.508 |
| No. of medications in use | 6.4±2.3 | 6.4±3.1 | 0.993 |
| No. of other illnesses | 3.6±1.7 | 3.2±1.3 | 0.474 |
| Office systolic blood pressure at baseline evaluation | 165.3±19.2 | 161.5±12.1 | 0.518 |
| Office diastolic blood pressure at baseline evaluation | 88.5±11.7 | 88.2±11.1 | 0.935 |
a
Diagnosed by Ambulatory Blood Pressure Monitoring.