Cognitive and life stress predictors of relapse in remitted unipolar depressed patients: test of the congruency hypothesis.

Remitted depressed subjects (N = 59) were followed longitudinally to determine whether dependent or self-critical persons are more vulnerable to relapse after exposure to life events that have a bearing on interpersonal or achievement concerns. Regression analyses indicated that congruency effects, as measured by the occurrence of achievement-related adversity in the lives of self-critical subjects, accounted for a significant increment in relapse variance over each variable entered singly. When data from the 2 months just before relapse were analyzed, some evidence of congruency effects in dependent subjects experiencing interpersonal-related adversity was obtained. These findings highlight the dimensional qualities of life even impact and call for greater differentiation in modeling the activation of a diathesis and precipitation of depression after life stress.