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

Published in final edited form as: Brain Behav Immun. 2013 Feb 4;30:125–132. doi: 10.1016/j.bbi.2013.01.081

Table 4.

Mean^* level of inflammatory markers, by PTSD status, within twin pairs discordant for PTSD

Inflammatory Marker	N^**	Age-adjusted			Adjusted^***
Inflammatory Marker	N^**	Mean, No PTSD (95% CI)	Mean, PTSD (95% CI)	P	Mean, No PTSD (95% CI)	Mean, PTSD (95% CI)	P
hsCRP (mg/l)	33	1.46 (1.01–2.11)	1.88 (1.30–2.72)	0.18	1.58 (1.12–2.23)	1.76 (1.25–2.49)	0.55
IL-6 (pg/ml)	33	1.27 (0.98–1.63)	1.29 (1.00–1.66)	0.89	1.30 (1.02–1.66)	1.21 (0.95–1.54)	0.45
Fibrinogen (mg/dl)	29	335 (305–369)	347 (305–370)	0.40	336 (305–370)	344 (312–379)	0.48
WBC (10³/μ1)	29	6.34 (5.71–7.04)	6.51 (5.86–7.23)	0.64	6.57 (6.02–7.18)	6.23 (5.7–6.81)	0.29
VCAM-1 (ng/ml)	33	619 (554–693)	609 (554–691)	0.67	619 (554–691)	588 (527–657)	0.17
ICAM-1 (ng/ml)	33	271 (244–300)	305 (248–296)	0.002	271 (248–296)	298 (273–325)	0.005

hsCRP, high-sensitivity C-reactive protein; IL-6, interleukin 6; WBC, white blood cell; ICAM-1, intercellular adhesion molecule 1; VCAM-1, vascular cell adhesion molecule 1.

Geometric means.

^**

Number of discordant twin pairs.

^***

Adjusted for age, physical activity, current smoking, statin use, and body mass index.