ADA and primary pigmented nodular adrenocortical disease: After administration of high-dose dexamethasone, 24 h UFC (Post-H-Dex)/(Pre-H-Dex) in PPNAD, BMAH, and ADA was 1.48 (1.14, 2.09), 0.94 (0.76, 1.59), and 0.92 (0.71, 1.07), respectively, and the ratio in the PPNAD group was distinctively higher than that of BMAH and ADA (P < 0.017, Fig. 1e).