. Author manuscript; available in PMC: 2016 Dec 1.

Published in final edited form as: Behav Res Ther. 2015 Oct 9;75:1–10. doi: 10.1016/j.brat.2015.10.002

Table 1.

Mean and Standard Deviations for Depressive Symptoms

		CB Group (n = 215)		CB Bibliotherapy (n = 208)			Brochure Control (n = 208)
Outcome measures	Mean	SD	¹% MDD	Mean	SD	% MDD	Mean	SD	% MDD
Depressive symptoms
Pretest	1.58	0.43	0.0	1.54	0.39	0.0	1.55	0.40	0.0
Posttest	1.45	0.33	0.5	1.54	0.40	2.9	1.58	0.40	4.8
6-mo follow-up	1.36	0.39	2.8	1.33	0.36	4.8	1.45	0.43	8.7
12-mo follow-up	1.39	0.39	7.4	1.41	0.44	10.6	1.42	0.43	12.0
18-mo follow-up	1.35	0.33	8.4	1.39	0.41	13.5	1.38	0.34	14.4
24-mo follow-up	1.41	0.39	10.7	1.44	0.45	16.8	1.45	0.43	17.3

Note. Means and standard deviations averaged across ten imputed data sets. Cumulative percent of cases that met criteria for major depressive disorder (MDD) from pretest through the 24-month follow-up period.