Are dysfunctional beliefs about illness unique to hypochondriasis?

Area of Science:

• Psychology
• Clinical Psychology
• Health Psychology

Background:

• Individuals with hypochondriasis often overestimate the likelihood of serious illness from ambiguous symptoms.
• It remains unclear if this tendency is specific to hypochondriasis or linked to comorbid factors like negative affectivity or anxiety.

Purpose of the Study:

• To determine if the overestimation of illness likelihood is unique to hypochondriasis.
• To investigate the role of negative affectivity, anxiety, and other related symptoms in this overestimation.

Main Methods:

• 133 college students completed self-report measures assessing hypochondriasis, depression, anxiety, worry, and avoidance.
• Participants estimated the probability of various symptoms indicating catastrophic and minor illnesses.

Main Results:

• Hypochondriasis uniquely predicted estimates of serious illness likelihood, even when controlling for other variables.
• Female gender, high negative affect, agoraphobic avoidance, and higher catastrophic illness estimates predicted hypochondriasis scores.

Conclusions:

• Dysfunctional beliefs about illness are a unique characteristic of hypochondriasis.
• These beliefs uniquely contribute to the prediction of hypochondriasis, suggesting a specific cognitive mechanism.