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Risk and functional significance of psychotic experiences among individuals with depression in 44 low- and middle-income countries

Published online by Cambridge University Press:  05 July 2016

A. Koyanagi ,
H. Oh ,
A. Stickley ,
J. M. Haro  and
J. DeVylder
A. Koyanagi*
Affiliation:
Research and Development Unit, Parc Sanitari Sant Joan de Déu, Universitat de Barcelona, Fundació Sant Joan de Déu, Dr Antoni Pujadas, 42, Sant Boi de Llobregat, Barcelona 08830, Spain Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Monforte de Lemos 3–5 Pabellón 11, Madrid 28029, Spain
H. Oh
Affiliation:
University of California Berkeley School of Public Health, 50 University Hall #7360, Berkeley, CA 94720-7360, USA Prevention Research Center, Pacific Institute for Research and Evaluation, 180 Grand Avenue Suite #1200, Oakland, CA 94612, USA
A. Stickley
Affiliation:
The Stockholm Centre for Health and Social Change (SCOHOST), Södertörn University, Huddinge 141 89, Sweden
J. M. Haro
Affiliation:
Research and Development Unit, Parc Sanitari Sant Joan de Déu, Universitat de Barcelona, Fundació Sant Joan de Déu, Dr Antoni Pujadas, 42, Sant Boi de Llobregat, Barcelona 08830, Spain Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Monforte de Lemos 3–5 Pabellón 11, Madrid 28029, Spain
J. DeVylder
Affiliation:
School of Social Work, University of Maryland, 525 West Redwood Street, Baltimore, MD 21201, USA
*
*Address for correspondence: A. Koyanagi, M.D., M.Sc., Ph.D., Research and Development Unit, Parc Sanitari Sant Joan de Déu, Universitat de Barcelona, Fundació Sant Joan de Déu, Dr. Antoni Pujadas, 42, Sant Boi de Llobregat, Barcelona, Spain. (Email: [email protected])
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Abstract

Background

Studies on whether the co-occurrence of psychotic experiences (PEs) and depression confers a more pronounced decrement in health status and function compared with depression alone are scarce in the general adult population.

Method

Data on 195 479 adults aged ⩾18 years from the World Health Survey were analysed. Using the World Mental Health Survey version of the Composite International Diagnostic Interview (CIDI), depression in the past 12 months was categorized into four groups: depressive episode, brief depressive episode, subsyndromal depression, and no depression. Past 12-month psychotic symptoms were assessed using four questions on positive symptoms from the CIDI. Health status across seven domains (cognition, interpersonal activities, sleep/energy, self-care, mobility, pain/discomfort, vision) and interviewer-rated presence of a mental health problem were assessed. Multivariable logistic and linear regression analyses were performed to assess the associations.

Results

When compared with those with no depression, individuals with depression had higher odds of reporting at least one PE, and this was seen across all levels of depression severity: subsyndromal depression [odds ratio (OR) 2.38, 95% confidence interval (CI) 2.02–2.81], brief depressive episode (OR 3.84, 95% CI 3.31–4.46) and depressive episode (OR 3.75, 95% CI 3.24–4.33). Having coexisting PEs and depression was associated with a higher risk for observable illness behavior and a significant decline in health status in the cognition, interpersonal activities and sleep/energy domains, compared with those with depression alone.

Conclusions

This coexistence of depression and PEs is associated with more severe social, cognitive and sleep disturbances, and more outwardly apparent illness behavior. Detecting this co-occurrence may be important for treatment planning.

Keywords

Depressionepidemiologyhealth statusmulti-country studiespsychotic experiences
Type
Original Articles
Information
Psychological Medicine , Volume 46 , Issue 12 , September 2016 , pp. 2655 - 2665
Copyright
Copyright © Cambridge University Press 2016 

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