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Figure 3 This bar graph shows the proportion of patients without PA (white bars), with IHA (red bars), and with APA (black bars) in the patients at the screening test. The proportion of patients with PA caused by both APA and IHA increased significantly (from 7.2% to 19.5%) with the increasing severity of hypertension. APA = aldosterone-producing adenoma; BP = blood pressure; HT = hypertension; IHA = idiopathic hyperaldosteronism; PA = primary aldosteronism; PH = primary hypertension.