title: Temporal patterns of anxious and depressed mood in generalized anxiety disorder: a daily diary study.
abstract: Research suggests that anxiety disorders tend to temporally precede depressive disorders, a finding potentially relevant to understanding comorbidity. The current study used diary methods to determine whether daily anxious mood also temporally precedes daily depressed mood. 55 participants with generalized anxiety disorder (GAD) and history of depressive symptoms completed a 21-day daily diary tracking anxious and depressed mood. Daily anxious and depressed moods were concurrently associated. Daily anxious mood predicted later depressed mood at a variety of time lags, with significance peaking at a two-day lag. Depressed mood generally did not predict later anxious mood. Results suggest that the temporal antecedence of anxiety over depression extends to daily symptoms in GAD. Implications for the refinement of comorbidity models, including causal theories, are discussed.
authors.affiliation: Department of Psychology, University of California, Los Angeles, USA. lstarr@ucla.edu
authors.forename: Lisa R
authors.initials: LR
authors.lastname: Starr
authors.forename: Joanne
authors.initials: J
authors.lastname: Davila
mesh_terms: D000293:Adolescent; D000328:Adult; D001008:Anxiety Disorders / Q000150:complications / Q000523:psychology*; D003863:Depression / Q000150:complications / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D008499:Medical Records / Q000706:statistics & numerical data*; D008875:Middle Aged; D013997:Time Factors