Table 3.

Correlations between MRS and clinical variables

	Glutathione (GSH)/water in occipital region of interest	Ventricular lactate
RAND survey
Physical functioning	ρ = 0.506, p = 0.001*	ρ = –0.614, p < 0.001**
Limitations due to physical problems	ρ = 0.257, p = 0.100	ρ = –0.517, p = 0.001**
Limitations due to emotional problems	ρ = 0.196, p = 0.212	ρ = –0.229, p = 0.186
Energy/fatigue	ρ = 0.606, p < 0.001**	ρ = –0.504, p = 0.002**
Emotional well-being	ρ = 0.380, p = 0.014*	ρ = –0.355, p = 0.039
Social functioning	ρ = 0.479, p = 0.002**	ρ = –0.635, p < 0.001**
Pain	ρ = 0.481, p = 0.001**	ρ = –0.550, p = 0.001**
General health	ρ = 0.419, p = 0.007**	ρ = –0.553, p = 0.001**
Total	ρ = 0.485, p = 0.002**	ρ = –0.601, p < 0.001**
Multidimensional Fatigue Inventory
Reduced activity	ρ = –0.508, p = 0.001**	ρ = 0.496, p = 0.002**
Mental fatigue	ρ = –0.309, p = 0.049*	ρ = 0.407, p = 0.014*
Physical fatigue	ρ = –0.525, p < 0.001**	ρ = 0.596, p < 0.001**
Reduced motivation	ρ = –0.251, p = 0.114	ρ = 0.126, p = 0.466
General fatigue	ρ = –0.565, p < 0.001**	ρ = 0.537, p = 0.001**
CDC	ρ = –0.633, p < 0.001**	ρ = 0.374, p = 0.038*
Wisconsin Brief Pain Inventory	ρ = –0.334, p = 0.040*	ρ = 0.275, p = 0.134
Pittsburgh Sleep Quality Index	ρ = –0.601, p < 0.001**	ρ = 0.628, p < 0.001**
QIDS	ρ = –0.321, p = 0.036*	ρ = 0.323, p = 0.055
Sheehan Disability Scale	ρ = –0.615, p < 0.001**	ρ = 0.581, p < 0.001**
Childhood Trauma Questionnaire	ρ = 0.094, p = 0.603	ρ = –0.249, p = 0.193

CDC, US Centers for Disease Control and Prevention; QIDS, Quick Inventory of Depressive Symptomatology; RAND, RAND Corporation, Santa Monica, CA, USA

^*p < 0.05 (two-tailed).

^**p < 0.01 (two-tailed).