Functional Somatic Disorders, Their Subtypes, and Their Association With Self-Rated Health in the German General...

Area of Science:

• Psychiatry
• General Practice
• Psychosomatic Medicine

Background:

• Heterogeneous classifications of persistent physical symptoms hinder effective clinical management.
• Functional somatic disorder (FSD) offers a neutral interface concept for these symptoms, but its prevalence and impact are unknown.

Purpose of the Study:

• To investigate the prevalence and impact of Functional Somatic Disorder (FSD) using operationalized criteria.
• To explore the associations between FSD types and health concerns, comorbidity, psychological distress, and self-rated health.

Main Methods:

• Analysis of 2379 participants from a German community survey.
• Operationalized FSD criteria based on somatic symptom count, type, and severity (Bodily Distress Syndrome Checklist).
• Determination of associations with health concerns, comorbidity, psychological distress, and self-rated health.

Main Results:

• Four distinct groups emerged based on symptom burden (none, single organ system, multiple organ systems).
• Increasing symptom burden correlated with higher psychological distress, health concerns, comorbidity, and lower self-rated health.
• Somatic symptom burden, health concerns, and comorbidity independently predicted self-rated health.

Conclusions:

• The study supports a two-grade FSD severity classification based on symptom persistence and organ system involvement.
• Delineating subtypes with psychobehavioral characteristics and/or somatic comorbidity is valuable.
• A group with high symptom burden but without these additional characteristics can be identified.