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Table 1.

Basal and post-synacthen serum or salivary cortisol (F) and cortisone (E) levels. Data are expressed as means and s.e.

Adrenal sufficient patients, n = 137 Central AI, n = 37
Normal HPA axis, n = 106 RAS, n = 31
Serum F0 (nmol/L) 287.1 (9.7) 265.4 (12.2) 114.7 (15.1)a,b
Serum F30LDSST(nmol/L) 512.4 (9.6) 426.7 (13.4)a 257.6 (24.3)a,b
Salivary F0 (nmol/L) 5.82 (0.33) 5.87 (0.48) 2.26 (0.33)a,b
Salivary F30LDSST (nmol/L) 31.16 (1.5) 21.45 (1.45)a 7.54 (1)a,b
Salivary E0 (nmol/L) 28.7 (1.26) 25.14 (1.62) 12.85 (2.52)a,b
Salivary E30LDSST (nmol/L) 63.63 (2.21) 49.6 (3.2)a 23.74 (2.92)a,b
Salivary F/E0 0.21 (0.01) 0.24 (0.02) 0.32 (0.07)
Salivary F/E30 0.5 (0.02) 0.46 (0.04) 0.44 (0.13)

aP < 0.001 vs no treatment; bP < 0.001 vs stress dose.

AI, adrenal insufficiency; HPA, hypothalamic–pituitary–adrenal; RAS, relative adrenal sufficiency.