. 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 1.

Summary statistics for egos and alters (across all waves)

Variable	Mean	s.d.	Min.	Max	Observed cases
CES-D score	5.84	7.32	0	54	7603
Depression status (CES-D score 16 +)	0.10	0.30	0	1	7603
Number of close friends	0.90	0.90	0	6	8309
Number of family members	2.81	3.07	0	23	8309
Network centrality (times 1000)	0.87	12.90	0	235.35	8309
Female	0.55	0.50	0	1	8309
Years of education	13.57	2.41	2	17	7159
Age	63.79	11.84	29.67	101.28	8309

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