Table 2.

Plasma biomarker distributions in GWI+ and GWI− Veterans

Biomarker	GWI+ (n = 53)	GWI− (n = 27)	P-value*
IL-6, pg/ml	0.80 (0.58–1.37)a	0.64 (0.50–0.93)	0.08
IFN-γ, pg/ml	2.32 (1.69–3.45)	3.32 (1.77–5.86)	0.30
IL-10, pg/ml	0.21 (0.17–0.30)	0.24 (0.18–0.36)	0.43
TNF-α, pg/ml	2.14 (1.93–2.47)	2.22 (1.92–2.58)	0.56
IL-8, pg/ml	4.43 (3.20–5.33)	3.84 (2.79–6.24)	0.94

* Mann–Whitney test

^aMedian (interquartile)