Table 2.

Multiple regression analyses.

	Emotional empathy Δ MET Emotional empathy			Theory-of-Mind Δ MASC total errors			Social interaction Δ SDM composite score			Social network Δ SNQ network size			Personality disorder Δ SCID-II Cluster B
	B	SE	β	B	SE	β	B	SE	β	B	SE	β	B	SE	β
Constant	1.55	1.14		−1.85	2.02		−0.26	0.45		−0.73	2.72		−1.01	2.80
Age	0.04	0.03	0.14	0.06	0.05	0.14	−0.01	0.01	−0.08	−0.04	0.06	−0.08	0.02	0.06	0.04
Sex	−1.16	0.50	−0.25*	−0.99	0.86	−0.12	0.09	0.20	0.05	−0.56	1.20	−0.05	−0.71	1.23	−0.06
ADHD-SR score	−0.05	0.03	−0.16	−0.07	0.06	−0.14	0.00	0.01	−0.01	0.04	0.08	0.05	−0.24	0.08	−0.32**
Controls vs. cocaine increaser	−0.26	0.59	−0.05	1.71	1.03	0.20	0.03	0.24	0.01	0.35	1.43	0.03	4.00	1.49	0.31**
Cocaine decreaser vs. cocaine increaser	−1.30	0.66	−0.25*	−0.51	1.17	−0.06	−0.31	0.27	−0.16	0.54	1.63	0.05	4.43	1.69	0.34**
R2		0.14			0.10			0.03			0.01			0.17
F		2.68*			1.67			0.57			0.22			3.25**

Multiple linear regression with the independent variables age, sex, ADHS-SR score, and dummy coded (zero, one) group variables. To compare the groups, cocaine increaser acted as the reference group. Dependent variables are change values (Δ = value at t2 − value at t1).

B, unstandardized regression coefficient; SE, unstandardized standard error; β, standardized beta.

⁽*⁾p < .10; *p < .05; **p < .01; ***p < .001.