. Author manuscript; available in PMC: 2013 Nov 19.

Published in final edited form as: Mol Psychiatry. 2010 Mar 16;16(3):10.1038/mp.2010.13. doi: 10.1038/mp.2010.13

Table 4.

Influence of number of depressed alters on ego depression

	Dependent variable: CES-D score
	Co-eff	s.e.	P-value
Previous number of depressed alters	0.762	0.190	0.000
Previous number of non-depressed alters	–0.128	0.058	0.026
Previous CES-D score	0.431	0.021	0.000
Age	–0.011	0.010	0.265
Years of education	–0.138	0.041	0.001
Female	1.129	0.172	0.000
Exam 7	1.457	0.191	0.000
Constant	–4.926	1.611	0.002
Deviance	190439
Null deviance	251500
N	4913

Abbreviation: CES-D, Center for Epidemiological Studies Depression Scale.

Results for linear regression of ego's depression on previous depression, number of depressed friends and family (16 or greater on CES-D), number of non-depressed friends and family, and other covariates. Models were estimated using a general estimating equation (GEE) with clustering on the ego and an independent working covariance structure Models with an exchangeable correlation structure yielded poorer fit. Fit statistics show sum of squared deviance between predicted and observed values for the model and a null model with no covariates.