“…Three double-blind RCTs and 1 open study assessed several demographic and clinical variables as predictors of response but failed to reach a level of significance. 30 –33 Georgotas et al 30 tested 21 variables as potential predictors of remission to antidepressants: 12 clinical variables (anhedonia, mood autonomy, anxiety, agitation, retardation, low energy, hypochondriasis, diurnal variation in the morning and in the afternoon, initial, middle and late insomnia, weight gain during episode), 4 demographic variables (age, sex, mental status, family history of depression), and 4 variables characterizing the depressive illness (presence of a precipitant, number of prior episodes of depression, duration of current episode, age of onset of first episode). In all, 25 older adult patients with MDD were taking nortriptyline, 22 patients were taking phenelzine (monoamine oxidase inhibitor), and 28 patients were taking a placebo.…”