Prospective study on influence of psychosocial factors on glycemic control in Japanese patients with type 2 diabetes

Psychosomatics. May-Jun 2006;47(3):240-6. doi: 10.1176/appi.psy.47.3.240.


The authors prospectively assessed the causal relationship between psychosocial factors and glycemic control in 256 Japanese outpatients with Type 2 diabetes. Using structural-equation modeling, they first developed a causal model in which glycosylated hemoglobin (HbA(1c)) at 6 months after assessment was influenced by the baseline psychosocial factors. Then, the reliability of the causal model was investigated with measurement of HbA(1c) at 12 months after baseline. Self-efficacy directly reinforced adherence, and adherence had a direct association with future HbA(1c). Other psychosocial factors, including social support, diabetes-related distress, daily burden, and emotion-focused coping prospectively influenced HbA(1c) indirectly through self-efficacy.

Publication types

  • Comparative Study

MeSH terms

  • Adaptation, Psychological
  • Aged
  • Ambulatory Care
  • Blood Glucose / metabolism*
  • Cross-Cultural Comparison*
  • Diabetes Complications / blood
  • Diabetes Complications / psychology
  • Diabetes Mellitus, Type 2 / blood
  • Diabetes Mellitus, Type 2 / psychology*
  • Emotions
  • Female
  • Follow-Up Studies
  • Glycated Hemoglobin A / metabolism*
  • Humans
  • Japan
  • Male
  • Middle Aged
  • Patient Compliance / psychology*
  • Prospective Studies
  • Self Efficacy
  • Sick Role
  • Social Support*
  • Stress, Psychological / complications*
  • Stress, Psychological / psychology


  • Blood Glucose
  • Glycated Hemoglobin A