Stress and genetic testing for disease risk

Area of Science:

• Psychological impact of health risk assessment
• Disease risk perception and stress
• Genetic testing and psychological outcomes

Background:

• Individuals perceiving themselves at risk for serious illness experience significant stress due to threat and uncertainty.
• Disease etiology varies; some diseases have multifactorial causes (e.g., breast cancer) involving genetics, lifestyle, and environmental factors, while others stem from inherited genetic defects.

Purpose of the Study:

• To explore the psychological burden associated with perceived disease risk and the role of risk factor testing.
• To differentiate the benefits and stressors of genetic testing for diseases with varying causes.
• To propose a model predicting long-term distress related to disease risk assessment.

Main Methods:

• Conceptual model development based on existing literature and psychological principles.
• Analysis of factors influencing distress in individuals undergoing risk assessment for life-threatening diseases.

Main Results:

• Testing can alleviate uncertainty, but distress may persist or increase under specific conditions.
• High-risk predictions, unresolved uncertainty, conflicting test results, and lack of psychosocial resources predict greater long-term distress.
• The impact of testing differs based on disease etiology (multifactorial vs. inherited genetic defects).

Conclusions:

• Psychological distress in healthy individuals at perceived risk is influenced by uncertainty, risk level, and personal resources.
• A predictive model highlights key factors contributing to long-term distress following risk assessment and testing.
• Interventions supporting psychosocial resources may mitigate distress in at-risk populations.