. Author manuscript; available in PMC: 2013 Feb 24.

Published in final edited form as: J Affect Disord. 2010 Apr 9;126(1-2):113–124. doi: 10.1016/j.jad.2010.03.002

Table 4.

Beck Depression Inventory (BDI) and Hamilton Depression Rating Scale (HDRS) Factor Overlap. This demonstrates that the percent variances shared by BDI and HDRS factors (column 3) are highly correlated with the degree to which the brain areas associated with those factors physically overlap (column 4). This suggests that these associated brain regions differ from each other not by chance but rather due to the relationship in severity between factors (variance not shared with other factors).

Factor A	Factor B	%variance shared (r²)	%physical overlap	p	r²	p	r²
H1	H2	0.00	0.50	0.027	0.845	1.13E–06	0.58
H1	H5	0.05	8.33
H1	B1	0.06	1.81
H1	B2	0.16	17.02
H1	B3	0.01	1.58
H2	H1	0.00	0.70	0.000	0.998
H2	H5	0.00	0.00
H2	B1	0.16	27.71
H2	B2	0.00	0.00
H2	B3	0.35	57.02
H5	H1	0.05	11.30	0.202	0.468
H5	H2	0.00	0.00
H5	B1	0.02	8.87
H5	B2	0.07	10.29
H5	B3	0.06	40.48
B1	H1	0.06	1.03	0.009	0.924
B1	H2	0.16	13.25
B1	H5	0.02	3.03
B1	B2	0.14	5.11
B1	B3	0.39	49.47
B2	H1	0.16	26.31	0.424	0.221
B2	H2	0.00	0.00
B2	H5	0.07	13.21
B2	B1	0.14	19.37
B2	B3	0.03	30.37
B3	H1	0.01	0.66	0.025	0.852
B3	H2	0.35	18.43
B3	H5	0.06	9.11
B3	B1	0.39	33.76
B3	B2	0.03	5.49