Cited by 60Treatment of Major DepressionSchizophrenia research and treatmentGenetic Associations and Epidemiology

Cognitive Performance in First-Degree Relatives of Individuals With vs Without Major Depressive Disorder: A Meta-analysis

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MacKenzie, Lynn E., Uher, Rudolf, Pavlova, Barbara·2019·JAMA Psychiatry

Abstract

Importance: Findings of cognitive impairment in major depressive disorder (MDD), including remitted MDD, raise the question whether impaired cognition is part of preexisting vulnerability rather than a consequence of MDD or its treatment. To our knowledge, no meta-analyses have been published on cognitive impairment in first-degree relatives of individuals with MDD. Objective: To compare cognitive performance between individuals with and without family history of MDD. Data Sources: Medline/PubMed, PsycINFO, and Embase using combinations of search terms for depression, first-degree relatives, and cognition from January 1, 1980, to July 15, 2018. Study Selection: Original articles that reported data on cognition in first-degree relatives of individuals with MDD compared with controls with no family history of major mental illness. Data Extraction and Synthesis: Means and SDs were extracted, and standardized mean differences (SMD) between relatives and controls were calculated for each measure of cognitive performance. The relative-control differences in overall cognition and in specific cognitive domains were synthesized in random-effects meta-analyses with robust variance estimation that allows including multiple correlated measures of cognition within each study. Heterogeneity was quantified with τ2. Publication bias was assessed with funnel plots and Egger intercept. Main Outcomes and Measures: Performance on cognitive tests. Results: Across 284 measures of cognition in 54 nonoverlapping samples including 3246 relatives of people with MDD (mean age 15.38 years, 57.68% females) and 5222 controls (mean age 14.70 years, 55.93% females), relatives of people with MDD performed worse than controls across all measures of cognition (SMD = -0.19; 95% CI, -0.27 to -0.11; P < .001). Domain-specific meta-analyses showed similar size of relative-control difference in most domains of cognition, including Full-Scale IQ (SMD = -0.19), verbal intelligence (SMD = -0.29), perceptual intelligence (SMD = -0.23), memory (SMD = -0.20), academic performance (SMD = -0.40), and language (SMD = -0.29). Study characteristics were not significantly associated with observed between-group differences. There was no evidence of publication bias. Conclusions and Relevance: A general impairment in cognition is a feature of familial disposition for MDD. Cognition may contribute to early identification of risk for depression and may be examined as potential target for early intervention.

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Research works printed but not linked: 2

  1. Traill K. Cognitive Vulnerability to Depression: Attention and Memory Biases in Never-Depressed Daughters of Depressed Mothers [dissertation]. Palo Alto, California: Stanford University; 2002.
  2. Sunew EY. Emotional Intelligence in School-Aged Children: Relations to Early Maternal Depression and Cognitive Functioning [dissertation]. Seattle: University of Washington; 2004.

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Authors
MacKenzie, L. E., Uher, R., & Pavlova, B.
Affiliations
  • Dalhousie University (CA)
  • Department of Psychiatry, Dalhousie University, Halifax, Nova Scotia, Canada
Venue
JAMA Psychiatry
Published
2019-03-01
Volume
76
Issue
3
Pages
297
ISSN
2168-622X (ISSN-L)
OpenAlex
W2906532054
Cited by
60
References
99
Citations by year
2026: 9 · 2025: 9 · 2024: 9 · 2023: 4 · 2022: 8 · 2021: 6 · 2020: 6 · 2019: 8 · 2018: 1
FWCI
3.39
Type
journal article
Language
en
Open access
Locations
  • JAMA Psychiatry (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
Dalhousie Medical Research Foundation
Topics
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
Keywords
major depressive disorder, cognitive impairment, first-degree relatives, familial risk, cognitive performance, intelligence, memory, academic performance, language, remitted depression, genetic susceptibility, family history of depression, children and adolescents
MeSH terms
Major Depressive Disorder, Family, Humans, Genetic Predisposition to Disease, Cognitive Dysfunction

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