Table 1.

Baseline characteristics.

Qualitative variables	No of patients (n = 65)
Gender
Female	53
Previous surgery in another center
No	61
Yes	4
MRI identification of the adenoma
No	6
Microadenoma	43
Macroadenoma	16
Quantitative variables	Mean (s.d.)
Age (years)	44 (13)
Adenoma size on MRI scan (mm)	8.3 (6)
Presurgery UFC/ULN	3.5 (2.8)
Presurgery cortisol (nmol/L)	687.4 (226.2)
Presurgery ACTH (pmol/L)	16.3 (12.2)

MRI, magnetic resonance imaging; s.d., standard deviation; UFC, urinary free cortisol; ULN, upper limit of normal (reference).