Table 4.

Correlation analysis between cortisone, aldosterone, and biochemical variables adjusted by sex and age

	Serum Cortisone		Urinary cortisone		Aldosterone
	r	P value	r	P value	r	P value
SBP	−0.13	.038	−0.23	<.001	0.01	.9
DBP	−0.15	.02	−0.2	.003	0.02	.7
PRA	0.31	<.001	0.15	.019	0.26	<.001*
Serum Na mEq/L	0.03	.3	−0.13	.04	−0.13	.06
Serum K, mEq/L	0.03	.3	0.17	.01	−0.09	.22
PAI-I	−0.12	.05	−0.07	.15	0.08	.24
Glomerular filtration rate	−0.05	.23	−0.02	.4	−0.21	.003*
Urinary Na, mEq/24 hours	−0.004	.48	0.2	.003	−0.17	.014*
FENA	0.05	.2	0.05	.23	−0.12	.08
Urinary K	−0.08	.13	0.21	.002	−0.07	.13
FEK	−0.06	.19	0.05	.2	0.18	.01*
Urinary Na/K ratio	0.02	.38	−0.03	.3	−0.2	.003*
Urinary albumin	−0.13	.03	0.03	.3	0.1	.15

Bootstrapped Pearson correlation.

Abbreviations: BMI, body mass index; DBP, diastolic blood pressure; E, cortisone; F, cortisol; FEK, fractional excretion of potassium; FENA, fractional excretion of sodium; hs-CRP, high sensitivity C reactive protein; K, potassium; Na, sodium; PAI-1, plasminogen activator inhibitor; PRA, plasma renin activity; SBP, systolic blood pressure.

*A P < .05 is considered to be significant.