Cited by 162Diabetes Management and EducationDiabetes Management and ResearchDiabetes Treatment and Management

Longitudinal effects of depression on glycemic control in veterans with Type 2 diabetes

Richardson, Lisa K., Egede, Leonard E., Mueller, Martina, Echols, Carrae L., Gebregziabher, Mulugeta·2008·General Hospital Psychiatry

Abstract

Objectives To examine the longitudinal effects of depression on glycemic control in veterans with Type 2 diabetes.Methods Data on 11,525 veterans with Type 2 diabetes were analyzed. A person-period dataset for each subject to cover 3-month intervals (36 time intervals) from April 1997 to March 2006 was created. Subjects were classified as depressed based on ICD-9 codes for depression. General linear mixed model regression was used to examine changes over time in HbA(1c) levels and whether the changes from baseline were different in depressed and nondepressed diabetic veterans, sequentially adjusting for baseline age, demographic variables and comorbidities (coronary heart disease, stroke and hypertension). Pooled t-tests were used to compare unadjusted mean HbA(1c) at each time point across the depressed and nondepressed groups. SAS was used for statistical analysis.Results Ninety-seven percent were men, 48% were white, 27% were blacks and 25% were other. Mean age was 66 years and mean follow-up period was 4.1 years. Six percent (696/11,525) of the sample had diagnosed depression. Unadjusted mean HbA(1c) values were significantly higher in depressed vs. nondepressed subjects at all time points. The adjusted mean HbA(1c) values over time in the final mixed model were significantly higher in depressed vs. nondepressed subjects (mean difference of 0.13; 95% CI [0.03; 0.22]; P=.008). In all adjusted models, differences in mean HbA(1c) values were significantly higher in depressed vs. nondepressed subjects with Type 2 diabetes.Conclusion This study of veterans with Type 2 diabetes demonstrates that there is a significant longitudinal relationship between depression and glycemic control as measured by HbA(1c) and that depression is associated with persistently higher HbA(1c) levels over time.

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Crossref · 10.1016/j.genhosppsych.2008.07.001

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Authors
Richardson, L. K., Egede, L. E., Mueller, M., Echols, C. L., & Gebregziabher, M.
Affiliations
Medical University of South Carolina (US)
Corresponding author
Egede, Leonard E.
Venue
General Hospital Psychiatry
Publisher
Elsevier BV
Published
2008-11
Volume
30
Issue
6
Pages
509-514
ISSN
0163-8343 (ISSN-L)
OpenAlex
W1978789286
Cited by
162
References
24
Citations by year
2026: 1 · 2025: 2 · 2024: 10 · 2023: 3 · 2022: 9 · 2021: 6 · 2020: 7 · 2019: 7 · 2018: 8 · 2017: 8 · 2016: 10 · 2015: 12 · 2014: 13 · 2013: 15 · 2012: 17
FWCI
8.23
Type
journal article
Language
en
Open access
closed
Locations
  • General Hospital Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Murdoch University Research Portal (submittedVersion)
Funders
National Institute of Diabetes and Digestive and Kidney Diseases (R01DK081121)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Education
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
Keywords
depression, type 2 diabetes, glycemic control, HbA1c, veterans, longitudinal effects, comorbidities, coronary artery disease, stroke, hypertension
MeSH terms
Aged, Depressive Disorder, Diabetes Mellitus, Type 2, Female, Health Surveys, Glycated Hemoglobin, Humans, Longitudinal Studies, Male, Middle Aged, Veterans, Comorbidity

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