Table 2.

Multiple regression models predicting personality characteristics and stress reactivity (n = 100)

Outcome	R2	Predictors	β	p
EPQ: Psychoticism	0.15	Cocaine Dependence	1.23	0.02*
		Education	−1.04	0.18
		Smoking status	0.30	0.60
EPQ: Extraversion	0.02	Cocaine Dependence	0.56	0.68
		Education	1.77	0.27
		Smoking status	0.07	0.96
EPQ: Neuroticism	0.16	Cocaine Dependence	4.74	< 0.01*
		Education	−0.53	0.77
		Smoking status	−1.44	0.29
CRH: Δ self-report stress	0.09	Cocaine Dependence	0.96	< 0.01*
		Education	−0.16	0.67
		Smoking status	−0.36	0.35
CRH: Δ cortisol	0.03	Cocaine Dependence	−24.83	0.49
		Education	−38.47	0.28
		Smoking status	−28.21	0.43

Note. Parameters were pooled across 5 imputed data sets. EPQ = Eysenck Personality Questionnaire; CRH = Corticotropin-releasing hormone.

^*p < 0.05