Figure 6: Metabolic redox parameters: levels of the low-molecular weight antioxidants/cofactors, erythrocyte glutathione ((a) and (b)), and plasma coenzyme Q10 ((c) and (d)), in the groups of patients self-reporting electromagnetic hypersensitivity (EHS, ), of patients affected by multiple chemical sensitivity without EHS symptoms (MCS, ), and of control healthy subjects (CTR, ). Values are represented as mean (□), standard error of the mean (upper and lower limits of the box), and 1.96× standard error (upper and lower whiskers). Intergroup significant differences (P) are reported under each panel. RBC: red blood cells: GSH: glutathione reduced form; GSSG: glutathione oxidized form; GS TOT: total glutathione; CoQ10: coenzyme Q10.