Patients with unipolar treatment resistant depression characteristics.

In brackets: Mean Standard DeviationAbbreviations: EPO: erythropoietin; BMI: body mass index; HDRS-17: Hamilton Depression Rating Scale 17 items; TRAQ: Treatment Response to Antidepressants Questionnaire; ECT: electroconvulsive treatment, SSRI: Selective Serotonin Reuptake Inhibitors, SNRI: Selective Noradrenaline Reuptake Inhibitors, MAOI: Monoamine Oxidase Inhibitors, TCA: Tricyclic Antidepressants.* Medical treatment history was evaluated using treatment response to antidepressants questionnaire (TRAQ) (Posternak, 2004). Each antidepressant medication and each combination of different antidepressants or add-on treatment with other classes of drugs were assessed as separate antidepressants trials.**No patients made changes in their medication from weeks 1–9; after week 9, medication change was performed for eight patients (EPO: N = 2; saline: N = 6).Patients with unipolar treatment resistant depression characteristics.