Table 3.

The correlations between patient background factors and the indicators after the metyrapone single administration.

	early morning serum cortisol levels		late-night serum cortisol levels		serum cortisol levels after LDDST		UFC		age		BMI		BSA
	rs	p value	rs	p value	rs	p value	rs	p value	rs	p value	rs	p value	rs	p value
Fnadir	0.71	<0.01	0.47	0.08	0.58	0.02	0.76	<0.01	0.62	0.01	0.22	0.42	0.06	0.83
ΔF	0.51	0.05	0.92	<0.01	0.82	<0.01	0.52	0.04	0.35	0.20	-0.18	0.53	-0.27	0.33
F reduction ratio	-0.27	0.33	0.21	0.44	0.05	0.85	-0.15	0.59	-0.3	0.28	-0.38	0.16	-0.18	0.51
AUCF suppression ratio	-0.04	0.88	0.27	0.34	0.18	0.51	-0.02	0.95	-0.19	0.50	-0.16	0.56	-0.04	0.88
time to nadir	-0.01	0.97	0.31	0.27	0.23	0.42	-0.04	0.88	0.11	0.69	-0.48	0.07	-0.5	0.06

BMI, body mass index; BSA, body surface area; LDDST, low-dose dexamethasone suppression test; UFC, urinary free cortisol.