Table 5.

Partial correlation among GWI symptom severity (partial correlation controlling for age and sex).

Pearson’s correlation	Sleep	Pain r (p)	Fatigue r (p)	Neurologic r (p)	PTSD r (p)	Depression r (p)
Sleep	–	0.252 (0.021)	0.300 (0.006)	0.632 (0.000)	0.395 (0.000)	0.422 (0.000)
Pain		–	0.114 (0.302)	0.329 (0.002)	0.110 (0.319)	0.028 (0.797)
Fatigue			–	0.408 (0.000)	0.301 (0.005)	0.314 (0.004)
Neurologic				–	0.515 (0.000)	0.469 (0.000)
PTSD					–	0.426 (0.000)
Depression						–

Bold: significant after adjusting with False Discovery Rate (FDR).

TBI severity was not included in the correlation test because its score ranges very little.