. Author manuscript; available in PMC: 2014 Feb 1.

Published in final edited form as: Brain Behav Immun. 2012 Oct 31;28:83–89. doi: 10.1016/j.bbi.2012.10.020

Table 1.

Summary of Regression Analysis for Variables Predicting Log Transformed Interleukin 6 (N = 1,054)

Variable	Correlation With IL-6	Model 1			Model 2			Model 3			Model 4

		B	SE B	P	B	SE B	P	B	SE B	P	B	SE(B)	P
Neuroticism	−.03	−0.06	0.02	.019	−0.03	0.02	.257	−0.05	0.02	.035	−0.04	0.02	.101
Conscientiousness	−.07*	−0.08	0.02	.001	−0.08	0.02	.001	−0.07	0.02	.003	−0.06	0.02	.010
Extraversion	.01	0.01	0.03	.797	− 0.01	0.03	.975	−0.01	0.03	.999	0.02	0.03	.405
Agreeableness	.06*	0.06	0.03	.020	0.04	0.03	.156	0.03	0.03	.279	0.01	0.03	.933
Openness	−.04	−0.05	0.03	.044	−0.04	0.03	.169	−0.03	0.03	.187	−0.03	0.03	.181
C x N¹	−09***	−0.06	0.02	.007	−0.05	0.02	.013	−0.05	0.02	.024	−0.04	0.02	.058
Age	.13***				0.10	0.02	.001	0.09	0.02	.001	0.13	0.02	.001
Male	−.06*				−0.04	0.05	.368	−0.03	0.05	.484	−0.08	0.05	.094
Minority	−.01				0.10	0.09	.255	0.06	0.09	.523	−0.01	0.08	.991
Education	−.07*				−0.04	0.02	.078	−0.03	0.02	.130	−0.01	0.02	.687
Blood Thinner	21 ***							0.20	0.06	.001	0.14	0.05	.011
Statin	.06*							0.02	0.05	.664	0.01	0.05	.837
Steroid	.01							−0.03	0.07	.701	0.03	0.06	.636
Comorbidity Count	.21***							0.06	0.02	.001	0.03	0.02	.103
Average Alcohol Use	.06*										−0.01	0.03	.767
Former Smoker	.03										0.05	0.05	.324
Current Smoker	.07**										0.20	0.07	.004
BMI	.21***										0.24	0.02	.001
R ²			.03			.09			.13			.21
F for change in R²			5.40***			9.60***			10.72***			14.76***

Note. Personality traits, age, education, alcohol use, and BMI are in standard deviation units. Former and current smoking status was referenced to those who never smoked. All models were adjusted for the time interval between personality assessment and completion of biomarkers subproject questionnaires.

FDR adjustment for interaction term = p < 0.10.