IJCS | Volume 33, Nº2, March / April 2020

126 Table 3 - Classification of blood pressure Classification of BP (mmHg) Frequency (%) p value (< 0.05) Good adherence (n = 111) Poor adherence (n = 26) Normal (SBP ≤ 120; DBP ≤ 80) 10.81% 7.69% 0.2921 Pre-hypertension (SBP 121 – 139; DBP 81 – 89) 27.02% 19.23% SAH stage 1 (SBP 140 – 159; DBP 90 – 99) 23.42% 34.61% SAH stage 2 (SBP 160 - 179; DBP 100 – 109) 24.32% 19.23% SAH stage 3 (SBP ≥ 180; DBP ≥ 110) 14.41% 19.23% * Data analysis was performed using the Chi-Square test. Figure 2 - Antihypertensive drugs in use according to degree of therapeutic adherence. * Hydrochlorothiazide is used by 51.2% of individuals with good adherence and 32% of individuals with poor adherence (p = 0.0804); chlorthalidone is used by 40.8% of the individuals with good adherence and 60% of the individuals with poor adherence (p = 0.0770); captopril is used by 3.2% of the individuals with good adherence and 4% of the individuals with poor adherence (p = 0.7686); enalapril is used by 22.4% of individuals with good adherence and 32% of individuals with poor adherence (p = 0.2985); another ACEI is used by 0.8% of the individuals with good adherence and 0% of the individuals with poor adherence (p = 0.6724); losartan is used by 68.8% of individuals with good adherence and 56% of individuals with poor adherence (p = 0.4824); another ARB is used by 0.8% of individuals with good adherence and 0% of individuals with poor adherence (p = 0.8030); amlodipine is used by 66.2% of the individuals with good adherence and 72% of the individuals with poor adherence (p = 0.4775); nifedipine is used by 12% of individuals with good adherence and 8% of individuals with poor adherence (p = 0.4869); furosemide is used by 9.6% of individuals with good adherence and 16.7% of individuals with poor adherence (p = 0.4467); spironolactone is used by 41.6% of individuals with good adherence and 66% of individuals with poor adherence (p = 0.1989); propranolol is used by 7.2% of the individuals with good adherence and 4% of the individuals with poor adherence (p = 0.5562); metoprolol is used by 5.6% of individuals with good adherence and 12% of individuals with poor adherence (p = 0.1634); atenolol is used by 19.2% of the individuals with good adherence and 20% of the individuals with poor adherence (p = 0.4438); carvedilol is used by 30.4% of the individuals with good adherence and 36% of the individuals with poor adherence (p = 0.5338); nebivolol is used by 4.8% of individuals with good adherence and 8% of individuals with poor adherence (p = 0.2160); clonidine is used by 0.8% of individuals with good adherence and 0% of individuals with poor adherence (p = 0.6650); hydralazine is used by 16.8% of the individuals with good adherence and 16% of the individuals with poor adherence (p = 0.5467); other antihypertensives are used by 0% of the individuals with good adherence and 4% of the individuals with poor adherence (p = 0.0270). The combination ACEI/ARB + thiazide diuretic + CCB is used by 68.8% of the individuals with good adherence and 72% of the individuals with poor adherence (p = 0.7534). Araújo & Aras Junior Therapeutic adherence and resistant hypertension Int J Cardiovasc Sci. 2020; 33(2):121-130 Original Article