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Recurrent Subthreshold Depression in Type 2 Diabetes: An Important Risk Factor for Poor Health Outcomes

Schmitz, N, Gariépy, G, Smith, KJ, Clyde, M, Malla, A, Boyer, R, Strychar, I, Lesage, A and Wang, J (2014) Recurrent Subthreshold Depression in Type 2 Diabetes: An Important Risk Factor for Poor Health Outcomes Diabetes Care, 37 (4). pp. 970-978.

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Abstract

OBJECTIVE To evaluate the association between recurrent subthreshold depressive episodes and functioning in a prospective community sample of people with type 2 diabetes. RESEARCH DESIGN AND METHODS A prospective community study in Quebec, Canada, was carried out between 2008 and 2013 (n = 1,064). Five yearly follow-up assessments (telephone interviews) were conducted. Baseline and the first three follow-up assessments were used to identify recurrent subthreshold depressive episodes (Patient Health Questionnaire [PHQ]-9). Functioning (World Health Organization Disability Assessment Schedule II [WHODAS-II]) and health-related quality of life (Centers for Disease Control and Prevention [CDC] unhealthy days) at 4- and 5-year follow-up assessments were the outcome measures. RESULTS Nearly half of the participants suffered from at least one episode of subthreshold depressive symptoms. After adjusting for potentially confounding factors, the risk of poor functioning/impaired health–related quality of life was nearly three times higher (relative risk = 2.86) for participants with four subthreshold depressive episodes compared with participants with no/minimal depression. Results suggest a dose-response relationship: the risk of poor functioning/impaired health–related quality of life increased with the number of recurrent subthreshold depressive episodes even after controlling for potentially confounding variables (significant linear trend, P < 0.001). CONCLUSIONS Recurrent subthreshold depressive symptoms might be an important risk factor for poor health outcomes in type 2 diabetes. Early identification, monitoring, and treatment of recurrent subthreshold depressive symptoms might improve functioning and quality of life in people with type 2 diabetes.

Item Type: Article
Subjects : Psychology
Authors :
NameEmailORCID
Schmitz, NUNSPECIFIEDUNSPECIFIED
Gariépy, GUNSPECIFIEDUNSPECIFIED
Smith, KJkimberley.j.smith@surrey.ac.ukUNSPECIFIED
Clyde, MUNSPECIFIEDUNSPECIFIED
Malla, AUNSPECIFIEDUNSPECIFIED
Boyer, RUNSPECIFIEDUNSPECIFIED
Strychar, IUNSPECIFIEDUNSPECIFIED
Lesage, AUNSPECIFIEDUNSPECIFIED
Wang, JUNSPECIFIEDUNSPECIFIED
Date : April 2014
Identification Number : https://doi.org/10.2337/dc13-1832
Copyright Disclaimer : © 2014 by the American Diabetes Association. Readers may use this article as long as the work is properly cited, the use is educational and not for profit, and the work is not altered. See http://creativecommons.org/licenses/by-nc-nd/3.0/ for details.
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 10:48
Last Modified : 18 May 2017 12:44
URI: http://epubs.surrey.ac.uk/id/eprint/829300

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