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. Author manuscript; available in PMC: 2018 Feb 15.
Published in final edited form as: Biol Psychiatry. 2016 Jul 5;81(4):347–357. doi: 10.1016/j.biopsych.2016.06.023

Table 1.

Sample Characteristics

Controls
(n=24)
Depressed
(n=68)
Statistic testing
group
differences
Statistical
significance (p)
Mean Age (SD) 33.38 (9.67) 34.90 (10.85) t(90)=.61 .545
Sex (% Female) 76% (n=19) 73.1% (n=49) Fisher’s exact 1.00
Ethnicity (%
Caucasian)
87.5% (n=21) 76.5% (n=52) Fisher’s exact .380
BDI (SD)a 1.04 (1.49) 30.54 (9.38) t(80)=14.96 <.0001
HAM-D (SD) --- 18.28 (5.06) --- ---

Note: BDI=Beck Depression Inventory; HAM-D=Hamilton Rating Scale for Depression (depressed participants only)