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. Author manuscript; available in PMC: 2013 Apr 20.
Published in final edited form as: J Abnorm Psychol. 2007 Feb;116(1):116–124. doi: 10.1037/0021-843X.116.1.116

Table 2.

Hierarchical Regression Model for Severe Life Events and Severe Difficulties Predicting Lifetime History of Depressive Episodes

Stressor type B Multiple
R 		R2 ΔR2 ΔF (dfs) p
Step 1: Severe difficulty (present/absent) .255 .255 .065 .065 6.56 (1, 95) .012
Step 2: Severe event (present/absent) −.339 .424 .180 .115 13.01 (1, 94) .001
Step 3: Severe Event × Difficulty interaction .113 .434 .189 .009 0.98 (1, 93) .325

Note. Severe difficulties were present for at least 2 years prior to onset of the index depressive episode, and severe events occurred within a 26-week period prior to the onset of the index depressive episode.