Abstract
ObjectiveTo investigate the distribution of somatic symptom disorder (SSD) and bodily distress syndrome (BDS) and analyze the differences in psychosocial characteristics of patients with the two diagnoses. MethodsA total of 694 general hospital outpatients completed the diagnostic interviews for SSD and BDS, and a set of questionnaires evaluating their psychosocial characteristics. A secondary analysis of these data is done. ResultsSSD and BDS had a moderate overlap (kappa value = 0.43). Patients who fulfilled both SSD and BDS diagnosis showed significantly higher levels of symptom-related psychological distress (SSD-12), somatic symptom severity (PHQ-15), depression (PHQ-9), and general anxiety (GAD-7), as well as lower mental and physical quality of life (SF-12) compared to patients with neither diagnosis and patients with only one diagnosis. Patients with either diagnosis were associated with significantly higher psychosocial impairments as compared to those with neither diagnosis. Patients who only met SSD had higher SSD-12 scores, whereas those with only BDS had higher PHQ-15 scores (p<0.001). ConclusionsSSD and BDS appear to represent somewhat different psychopathologies, with SSD more associated with psychological distress and BDS associated with greater experience of somatic symptoms. Patients fulfilling both diagnosis show higher symptom severity in various psychosocial aspects.
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