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. 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

Figure 4.

Figure 4

Alter Type and Depression in the Framingham Social Network. This graph shows the change in likelihood of depression given that an alter is depressed. Estimates are based on generalized estimating equation logit models of depression on several different sub-samples of the Framingham Heart Study Social Network. The dependent variable in each model is ego depression status and independent variables include lagged ego depression status, alter depression status, lagged alter depression status, ego age, gender, and education and fixed effects for each wave. Full models and equations are available in the appendix. Mean effect sizes and 95% confidence intervals were calculated by simulating first difference in alter contemporaneous depression status (changing from 0–1) using 1000 randomly drawn sets of estimates from coefficient covariance matrix and assuming all other variables are held at their means.