. Author manuscript; available in PMC: 2013 Apr 15.

Published in final edited form as: Depress Anxiety. 2010 Jun 23;27(11):1050–1056. doi: 10.1002/da.20717

Table 2.

Assessment and Subject Differences

	Depressed (N=54)	Healthy (N=73)	Test statistic
Assessment differences
Time of day			χ²(2)= 0.19, p=0.91
Morning	21	28
Afternoon	20	26
Evening	12	19
Subject differences
Mean BMI (SD)	23.29 (4.51)	23.02 (4.15)	t(125)= 0.36, p=0.72
Mean typical coffee use (SD) (scale 0 – 9)	3.39 (2.90)	2.88 (2.92)	t(125)= 0.98, p=0.33
Mean typical nicotine use (SD) (scale 0 – 9)	0.07 (0.33)	0.01 (0.12)	t(125)= 1.45, p=0.15
Mean typical tea use (SD) (scale 0 – 9)	2.50 (2.48)	2.23 (2.57)	t(125)= 0.59, p=0.56
Mean typical caffeine soda use (SD) (scale 0 – 9)	6.15 (1.97)	5.55 (2.48)	t(125)= 1.47, p=0.15