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. Author manuscript; available in PMC: 2016 Nov 1.
Published in final edited form as: JAMA Neurol. 2015 Nov;72(11):1252–1260. doi: 10.1001/jamaneurol.2015.2564

Table 1.

Demographic and Clinical Characteristics of TRD Patients

Characteristics Patients with TRD
Age (years), mean (SD) 46.11 (8.95)
Gender, Female/Male 7/2
HamD17 at surgery, mean (SD) 22.53 (2.78)
Age onset of MDD, mean (SD) 21.11 (11.61)
Lifetime number of MDD episode, mean (SD) 3.67 (1.58)
Duration of current episode (months), mean (SD) 36.67 (20)

Abbreviations: HamD17 – 17 Item Hamilton Depression Rating Scale; MDD – Major Depressive Disorder