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Health locus of control and depression in chronic kidney disease: a dynamic perspective

Jamie A Cvengros1, Alan J Christensen, William J Lawton

  • 1Department of Psychology, University of Iowa, Iowa City, Iowa 52242, USA. jamie-cvengros@uiowa.edu

Journal of Health Psychology
|July 22, 2005
PubMed

Insights

Increases in internal health locus of control (HLC) over time predict depression in chronic kidney disease (CKD) patients. This effect is stronger when the disease progresses, highlighting HLC changes

Area of Science:

  • Psychology
  • Health Psychology
  • Medical Psychology

Background:

  • Chronic kidney disease (CKD) is a progressive condition impacting patients' mental well-being.
  • Health locus of control (HLC) is a psychological construct influencing health behaviors and outcomes.
  • Understanding the interplay between HLC, depression, and disease progression is crucial for patient care.

Purpose of the Study:

  • To investigate the longitudinal relationship between internal health locus of control (HLC) and depression in patients with CKD.
  • To examine how changes in internal HLOC over time influence depression levels.
  • To explore the moderating role of disease progression in the HLOC-depression relationship.

Main Methods:

  • A cohort of 207 CKD patients completed internal HLOC and depression assessments at baseline and 16-month follow-up.
  • Regression analyses were employed to examine predictive relationships, controlling for baseline depression.
  • Interaction effects between changes in internal HLOC and disease progression were analyzed.

Main Results:

  • Baseline internal HLOC was not a significant predictor of follow-up depression after controlling for baseline depression.
  • Increases in internal HLOC over the 16-month period significantly predicted higher depression levels at follow-up.
  • An interaction effect revealed that the relationship between increased internal HLOC and depression was more pronounced in patients with significant disease progression.

Conclusions:

  • Changes in internal HLOC over time, rather than baseline levels, are significant predictors of depression in CKD patients.
  • The impact of increasing internal HLOC on depression is particularly relevant for patients experiencing disease progression or facing life-threatening illness.
  • Interventions aimed at managing HLOC and its changes may be beneficial for improving mental health outcomes in CKD patients, especially those with worsening conditions.

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