Figure 1.
Flow diagram of selecting study subjects. Our study enrolled patients with PA, which was diagnosed by combining ICD‐9‐CM 255.1 and use of MRA 1 year before and after the diagnosis. We also excluded patients with documented congestive heart failure (CHF). APA indicates aldosterone‐producing adenoma; IHA, Idiopathic bilateral hyperaldosteronism; MRA, mineralocorticoid receptor antagonist; PA, primary aldosteronism.