Relation between psychosocial variables and the glycemic control of patients with type 2 diabetes: A cross-sectional and prospective study

Takehiro Nozaki, Chihiro Morita, Sunao Matsubayashi, Koich Ishido, Hiroaki Yokoyama, Keisuke Kawai, Masahiro Matsumoto, Masato Takii, Chiharu Kubo

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Abstract

Background: This cross-sectional and prospective study used a variety of psychological inventories to evaluate the relationship between psychosocial factors and the glycemic control of patients with type 2 diabetes. Methods: Participants were 304 patients with type 2 diabetes who were treated as outpatients at diabetes clinics. All participants were assessed for HbA1c and completed the following self-report psychological inventories: 1) Diabetes Treatment Satisfaction Questionnaire (DTSQ), 2) Problem Areas in Diabetes Survey (PAID), 3) Well-being Questionnaire 12 (W-BQ12), 4) Self-Esteem Scale (SES), 5) Social Support Scale, and 6) Self-Efficacy Scale. HbA1c was again measured one year later. The relationships between the psychosocial variables obtained by analysis of the psychological inventories and baseline or one-year follow-up HbA1c were determined. Results: Baseline HbA1c was significantly correlated with age, diet treatment regimen, number of microvascular complication of diabetes, and the total scores of DTSQ, W-BQ12, PAID, SES and the Self-Efficacy Scale. Hierarchical stepwise multiple regression revealed that significant predictors of baseline HbA1c were total DTSQ and PAID scores, along with age, diet treatment regimen, and number of microvascular complication of diabetes after adjustment for demographic, clinical and other psychosocial variables. Two hundred and ninety patients (95.4% of 304) were followed and assessed one year after baseline. Hierarchical stepwise multiple regression analysis showed the significant predictors of follow-up HbA1c to be total DTSQ and PAID scores, along with age and diet treatment regimen. However, the correlation between baseline and follow-up HbA1c was so high that the only other variable to retain significance was diet treatment regimen once baseline HbA1c was included in the regression of follow-up HbA1c. Conclusion: The DTSQ and the PAID predicted both current and future HbA1c to a similar and significant degree in patients with type 2 diabetes.

Original languageEnglish
Article number4
JournalBioPsychoSocial Medicine
Volume3
DOIs
Publication statusPublished - Mar 19 2009

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Type 2 Diabetes Mellitus
Cross-Sectional Studies
Prospective Studies
Psychology
Diet
Therapeutics
Self Efficacy
Diabetes Complications
Self Concept
Equipment and Supplies
Surveys and Questionnaires
Social Support
Self Report
Outpatients
Regression Analysis
Demography

All Science Journal Classification (ASJC) codes

  • Social Psychology
  • Psychology(all)
  • Psychiatry and Mental health
  • Biological Psychiatry

Cite this

Relation between psychosocial variables and the glycemic control of patients with type 2 diabetes : A cross-sectional and prospective study. / Nozaki, Takehiro; Morita, Chihiro; Matsubayashi, Sunao; Ishido, Koich; Yokoyama, Hiroaki; Kawai, Keisuke; Matsumoto, Masahiro; Takii, Masato; Kubo, Chiharu.

In: BioPsychoSocial Medicine, Vol. 3, 4, 19.03.2009.

Research output: Contribution to journalArticle

Nozaki, Takehiro ; Morita, Chihiro ; Matsubayashi, Sunao ; Ishido, Koich ; Yokoyama, Hiroaki ; Kawai, Keisuke ; Matsumoto, Masahiro ; Takii, Masato ; Kubo, Chiharu. / Relation between psychosocial variables and the glycemic control of patients with type 2 diabetes : A cross-sectional and prospective study. In: BioPsychoSocial Medicine. 2009 ; Vol. 3.
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AU - Nozaki, Takehiro

AU - Morita, Chihiro

AU - Matsubayashi, Sunao

AU - Ishido, Koich

AU - Yokoyama, Hiroaki

AU - Kawai, Keisuke

AU - Matsumoto, Masahiro

AU - Takii, Masato

AU - Kubo, Chiharu

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