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The long shadow of childhood trauma for depression in midlife: examining daily psychological stress processes as a persistent risk pathway

Published online by Cambridge University Press:  26 March 2021

Stefanie E. Mayer*
Affiliation:
Department of Psychiatry and Behavioral Sciences, University of California, San Francisco, CA, USA
Agus Surachman
Affiliation:
Department of Human Development and Family Studies, The Pennsylvania State University, University Park, PA, USA Center for Healthy Aging, The Pennsylvania State University, University Park, PA, USA
Aric A. Prather
Affiliation:
Department of Psychiatry and Behavioral Sciences, University of California, San Francisco, CA, USA
Eli Puterman
Affiliation:
School of Kinesiology, University of British Columbia, Vancouver, BC, Canada
Kevin L. Delucchi
Affiliation:
Department of Psychiatry and Behavioral Sciences, University of California, San Francisco, CA, USA
Michael R. Irwin
Affiliation:
Cousins Center for Psychoneuroimmunology, UCLA Semel Institute for Neuroscience and Human Behavior, Los Angeles, CA, USA
Andrea Danese
Affiliation:
Social, Genetic and Developmental Psychiatry Centre and Department of Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK National and Specialist CAMHS Clinic for Trauma, Anxiety, and Depression, South London and Maudsley NHS Foundation Trust, London, UK
David M. Almeida
Affiliation:
Department of Human Development and Family Studies, The Pennsylvania State University, University Park, PA, USA Center for Healthy Aging, The Pennsylvania State University, University Park, PA, USA
Elissa S. Epel
Affiliation:
Department of Psychiatry and Behavioral Sciences, University of California, San Francisco, CA, USA
*
Author for correspondence: Stefanie E. Mayer, E-mail: Stefanie.Mayer@ucsf.edu
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Abstract

Background

Childhood trauma (CT) increases the risk of adult depression. Buffering effects require an understanding of the underlying persistent risk pathways. This study examined whether daily psychological stress processes – how an individual interprets and affectively responds to minor everyday events – mediate the effect of CT on adult depressive symptoms.

Methods

Middle-aged women (N = 183) reported CT at baseline and completed daily diaries of threat appraisals and negative evening affect for 7 days at baseline, 9, and 18 months. Depressive symptoms were measured across the 1.5-year period. Mediation was examined using multilevel structural equation modeling.

Results

Reported CT predicted greater depressive symptoms over the 1.5-year time period (estimate = 0.27, s.e. = 0.07, 95% CI 0.15–0.38, p < 0.001). Daily threat appraisals and negative affect mediated the effect of reported CT on depressive symptoms (estimate = 0.34, s.e. = 0.08, 95% CI 0.22–0.46, p < 0.001). Daily threat appraisals explained more than half of this effect (estimate = 0.19, s.e. = 0.07, 95% CI 0.08–0.30, p = 0.004). Post hoc analyses in individuals who reported at least moderate severity of CT showed that lower threat appraisals buffered depressive symptoms. A similar pattern was found in individuals who reported no/low severity of CT.

Conclusions

A reported history of CT acts as a latent vulnerability, exaggerating threat appraisals of everyday events, which trigger greater negative evening affect – processes that have important mental health consequences and may provide malleable intervention targets.

Information

Type
Original Article
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0), which permits unrestricted re- use, distribution and reproduction, provided the original article is properly cited.
Copyright
Copyright © The Author(s) 2021. Published by Cambridge University Press
Figure 0

Table 1. Descriptive statistics for sociodemographic information, childhood trauma type, daily stress responses, and depressive symptoms

Figure 1

Fig. 1. Findings from the prediction of depressive symptoms by reported childhood trauma. Greater reported childhood trauma predicted higher depressive symptom, adjusting for age, marital status, education, annual household income, and caregiver group status (a; structural equation model). However, after adding daily stress processes into the model (b; multilevel structural equation modeling, MSEM), the direct association between reported childhood trauma and depressive symptoms was no longer significant, indicating mediation by daily threat appraisals and daily negative affect. The indirect analysis indicated that there was a total indirect effect from reported childhood trauma to depressive symptoms through daily stress processes (estimate = 0.34, s.e. = 0.08, 95% CI 0.22–0.46, p < 0.001), in which more than 50% of the indirect effect was explained through daily threat appraisals (c; indirect path 1). Note: All reported estimates are standardized (for unstandardized estimates, see online Supplementary Table S1); squares = observed variables; circles = latent variables. MSEM analyses adjusted for age, marital status, education, income, caregiver group status, and between-person differences in exposure to at least moderately severe stress days.

Figure 2

Table 2. Model fit indices

Figure 3

Fig. 2. Associations between daily threat appraisals and depressive symptoms. (a) Depressive symptoms (Inventory of Depressive Symptomatology, IDS) among participants who reported at least moderate levels of childhood trauma (CT; defined as at least moderate severity in at least one subscale of the Childhood Trauma Questionnaire) based on their lower (⩽ 25th percentile), medium (between >25th and <75th percentile), or higher (⩾75th percentile) daily threat appraisals. Daily threat appraisals predicted depressive symptoms in individuals who reported CT (F2,52 = 10.33, p < 0.001). Bonferroni corrected tests showed that individuals with higher threat appraisals had higher depressive symptoms compared to individuals with medium and lower threat appraisals. Mean depressive symptoms for the no/low CT group was included as a reference. Note: **p < 0.001; *p < 0.01. (b) Depressive symptoms (Inventory of Depressive Symptomatology, IDS) among participants who reported no or low levels of childhood trauma (no/low CT) based on their lower (⩽25th percentile), medium (between >25th and <75th percentile), or higher (⩾75th percentile) daily threat appraisals. Daily threat appraisals predicted depressive symptoms in individuals who reported no/low CT (F2102 = 27.73, p < 0.001). Bonferroni corrected tests showed that individuals with higher threat appraisals had higher depressive symptoms compared to individuals with medium and lower threat appraisals. Mean depressive symptoms for the CT group was included as a reference. Note: **p < 0.001.

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