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Putative clinical subtypes of social phobia: a factor-analytical study
G Perugi1, S Nassini, I Maremmani
1Department of Psychiatry, University of Pisa, Via Roma 67, 56100, Pisa, Italy.
Acta Psychiatrica Scandinavica
|November 28, 2001
Summary
Social phobia (SP) has distinct subtypes, with "interpersonal anxiety" linked to more feared situations and avoidant personality disorder (APD). Other subtypes show fewer fears and less APD.
Area of Science:
- Psychiatry
- Clinical Psychology
Background:
- Social phobia (SP) is a complex anxiety disorder.
- Understanding its subtypes is crucial for effective treatment.
Purpose of the Study:
- To identify distinct symptomatological subtypes of social phobia.
- To explore the relationship between these subtypes, feared social situations, and avoidant personality disorder (APD).
Main Methods:
- Principal component factor analysis of the Liebowitz Social Anxiety Scale (LSAS) was used.
- 153 out-patients diagnosed with SP (DSM-III-R) were analyzed.
- Subtypes were compared based on LSAS factor Z-scores.
Main Results:
- Five SP subtypes emerged, explaining 64.7% of the variance: interpersonal anxiety, formal speaking anxiety, stranger-authority anxiety, eating/drinking anxiety, and performance anxiety.
- The "interpersonal anxiety" subtype reported the most feared situations and higher rates of APD.
- This subtype also showed a greater likelihood of a positive family history for SP and comorbid mood disorders.
Conclusions:
- The findings support a multidimensional structure of social phobia.
- These subtypes offer a richer understanding of SP symptomatology and associated conditions.