Five factor model personality factors moderated the effects of an intervention to enhance chronic disease management self-efficacy

Br J Health Psychol. 2009 Sep;14(Pt 3):473-87. doi: 10.1348/135910708X360700. Epub 2008 Sep 20.


Objectives: Peer led interventions can enhance patient self-efficacy for managing chronic illnesses, but little is known regarding the moderators or duration of their effects. We hypothesized Homing in on Health (HIOH), a variant of the Chronic Disease Self-Management Program, would be most effective in patients high in neuroticism and low in extraversion, openness, agreeableness, and/or conscientiousness.

Design: Analysis of data from subjects (N=415) enrolled in an ongoing randomized controlled trial.

Methods: Regression analyses were conducted to explore whether Five Factor Model (FFM) personality factors moderated the effects of HIOH, delivered in subjects' homes or via telephone, on disease management self-efficacy. Data were collected at 6 time points over the course of 1 year.

Results: Compared with control and telephone HIOH, home HIOH significantly increased self-efficacy, an effect peaking at 6 weeks and fully attenuating by 1 year. Moderation analyses revealed the benefit was confined to patients higher in neuroticism and/or lower in conscientiousness, agreeableness, and extraversion.

Conclusions: A peer led intervention to enhance disease management self-efficacy had only short-term effects, and FFM personality factors moderated those effects. Measuring personality factors in chronically ill individuals may facilitate targeting of self-management interventions to those most likely to respond.

Publication types

  • Comparative Study
  • Randomized Controlled Trial
  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Adaptation, Psychological*
  • Adult
  • Aged
  • Aged, 80 and over
  • Character
  • Chronic Disease / psychology*
  • Extraversion, Psychological
  • Female
  • House Calls
  • Humans
  • Male
  • Middle Aged
  • Neurotic Disorders / diagnosis
  • Neurotic Disorders / psychology
  • Personality Inventory / statistics & numerical data
  • Psychometrics
  • Self Care / psychology*
  • Self Efficacy*
  • Sick Role*
  • Telephone