Diagnostic classification and demographic features in 283 patients with somatoform disorder
Article first published online: 28 APR 2007
Psychiatry and Clinical Neurosciences
Volume 61, Issue 3, pages 283–289, June 2007
How to Cite
KUWABARA, H., OTSUKA, M., SHINDO, M., ONO, S., SHIOIRI, T. and SOMEYA, T. (2007), Diagnostic classification and demographic features in 283 patients with somatoform disorder. Psychiatry and Clinical Neurosciences, 61: 283–289. doi: 10.1111/j.1440-1819.2007.01664.x
- Issue published online: 28 APR 2007
- Article first published online: 28 APR 2007
- Received 16 October 2006; revised 6 February 2007; accepted 11 February 2007.
- diagnostic classification;
- somatoform disorder
Abstract A total of 283 patients with somatoform disorder (SFD) seen in a psychiatry clinic were surveyed and their diagnostic subtypes, demographic features, and comorbidities, analyzed. The results indicate that: (i) SFD comprises 5.8% of first-visit outpatients; (ii) undifferentiated SFD (USFD) and SFD not otherwise specified (SFD-NOS) account for the majority of patients; (iii) there are 1.7-fold more women than men; (iv) age of onset is lower in patients with somatization disorder or body dysmorphic disorder and higher in patients with hypochondriasis or pain disorder; (v) the mean number of years of education was 11.2 years; and (vi) comorbid illness were seen in 24.8% of patients, and included mood disorder, anxiety disorder, and personality disorder, as well as borderline intellectual functioning and mental retardation. The data indicate that the majority of patients with SFD are given a diagnosis of residual category, such as USFD or SFD-NOS, and that the age of onset varies depending on the diagnostic subtype. SFD was more frequently seen in women, associated with comorbidities.