Table 6.

Variances, beta's, p values, and 95% confidence intervals (CI) for best fitting models for NAcc responses (left and right separately), and age and PDS

	Variance	β	95% CI		Upper
			p	Lower
Age models
Nacc L
Random effect
Intercept	0.94			0.60	1.46
Fixed effects
Intercept		1.69	0.00	1.45	1.93
Age1		1.16	0.64	−3.77	6.10
Age2		−9.22	0.00	−14.11	−4.34
BAS Drive		5.83	0.02	0.97	10.70
Nacc R
Random effect
Intercept	1.01
Fixed effects
Intercept		1.89	0.00	1.63	2.14
Age1		−0.57	0.83	−5.75	4.62
Age2		−8.65	0.00	−13.77	−3.52
BAS Drive		6.72	0.01	1.63	11.82
PDS models
Nacc L
Random effect
Intercept	0.75			0.31	1.81
Fixed effects
Intercept		1.77	0.00	1.50	2.04
PDS1		2.77	0.29	−2.37	7.91
Testosterone		6.39	0.02	1.21	11.57
BAS Drive		5.04	0.04	0.22	9.86
Nacc R
Random effect
Intercept	1.01			0.72	1.60
Fixed effects
Intercept		0.89	0.00	1.63	2.14
BAS Drive		7.43	0.01	2.29	12.58

Linear age terms are represented by Age¹ and quadratic age terms by Age².