Table 1a.

Groups of subjects studied

STUDY SUBJECTS
	Number of patients	Sex	Age (years)	Patient type	Outcome of cortisol measurements	Designation
Group 1	21	57% F	33 ± 9	No suspicion AI	≥ 20 μg/dL by MS/MS	Normal
Group 2	40	64% F	46 ± 15	AI suspected	≥ 20 μg/dL by MS/MS	Normal
Group 3	19	50% F	46 ± 13	AI suspected (4 patients with known AI)	< 20 μg/dL by MS/MS	AI