ACE and hypertensive disorder: After adjusting for potential confounding factors using multivariable binary logistic regression analysis, the following factors were significantly associated with poor hypertension control: BMI > 30 kg/m2 (p < 0.001), use of ACE inhibitors (p = 0.01), combination therapy with four antihypertensive drugs (p = 0.013), and missing an appointment (p < 0.001) (Table 4).