Stability of chronotype over a 7-year follow-up period and its association with severity of depressive and anxiety symptoms.

ABSTRACT: BACKGROUND:Chronotype is an individual's preferred timing of sleep and activity, and is often referred to as a later chronotype (or evening-type) or an earlier chronotype (or morning-type). Having an evening chronotype is associated with more severe depressive and anxiety symptoms. Based on these findings it is has been suggested that chronotype is a stable construct associated with vulnerability to develop depressive or anxiety disorders. To examine this, we test the stability of chronotype over 7 years, and its longitudinal association with the change in severity of depressive and anxiety symptoms. METHODS:Data of 1,417 participants with a depressive and/or anxiety disorder diagnosis and healthy controls assessed at the 2 and 9-year follow-up waves of the Netherlands Study of depression

SUBMITTER: Druiven SJM 

PROVIDER: S-EPMC7318352 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature