Table 3: Associations of cortisol with callous-unemotional traits, ADHD-symptoms, and externalizing behavior.

AUC a AUC d
SE P SE

Full model
 Constant2108.5698.4 0.0068673.02991.60.008
 CU-traits−8.95.2−0.310.098−49.622.2−0.380.034
 Externalizing behavior−11.58.3−0.270.179−22.235.5−0.120.536
 Impulsivity8.839.30.050.825−67.3105.4−0.140.529
 Hyperactivity−32.324.6−0.300.201−349.5168.3−0.440.048
Final model
 Constant1303.8341.20.0017211.41596.0<0.001
 CU-traits−9.34.9−0.320.068−52.421.7−0.400.023
 Impulsivity−459.5130.1−0.580.002
 Hyperactivity−44.418.1−0.410.021

Multiple linear regression; AUC a : area under the curve of cortisol levels 1 h after awakening with respect to zero; AUC d : area under the curve with respect to diurnal cortisol over 12 h; CU: callous-unemotional.
full model AUC a = 0.30; final model AUC a = 0.25; full model AUC d = 0.38; final model AUC d = 0.34.