Table 2.

Association Between Age, Sex, and Date of Visit With Cortisol Levels: Results for the Minimally Adjusted Model

Effect	Estimate	SE	P > |t|
Intercept	18.99	0.29	<.0001
Sex	−1.20	0.46	.0098
Date of visit (y) (linear)	−0.18	0.030	<.0001
Date of visit (y) (quadratic)	−0.027	0.0025	<.0001
Age (decades) (linear effect)	0.20	0.16	.22
Age (decades) (quadratic effect)	0.42	0.070	<.0001