Does optimism affect symptom report in chronic disease? What are its consequences for self-care behaviour and...

Area of Science:

• Psychology
• Health Psychology
• Chronic Illness Management

Background:

• Optimism may influence health perception and behavior in chronically ill individuals.
• Previous research has not fully clarified the relationship between optimism, symptom reporting, and self-care in specific chronic conditions.

Purpose of the Study:

• To investigate if optimistic patients with multiple sclerosis (MS) and Type 1 diabetes mellitus (IDDM) underestimate their symptoms.
• To determine the impact of optimistic beliefs on self-care and physical functioning over time.

Main Methods:

• Hierarchical regression analyses were used to examine optimistic beliefs (positive outcome expectancies, positive efficacy expectancies, unrealistic optimism) and symptom report.
• Mediating roles of negative affectivity and denial were assessed.
• The influence of optimistic beliefs on self-care and physical functioning at 6-month follow-up was evaluated.

Main Results:

• Optimistic beliefs generally did not lead to biased health status perception (decreased symptom report).
• Positive outcome expectancies were linked to reduced fatigue reporting in IDDM patients, mediated by lower negative affectivity.
• Positive efficacy expectancies positively predicted self-care behaviors in both MS and IDDM patients at 6 months.

Conclusions:

• Optimistic chronically ill patients do not exhibit a systematically biased perception of their health status.
• Positive efficacy expectancies are associated with improved self-care behaviors in the long term for patients with chronic conditions.