"Sharpe et al (1992) in a prospective study of patients with myalgic encephalomyelitis seen in an infectious diseases clinic find that attributing the causes of ongoing symptomatology to solely physical causes, and participation in an ME support group, are independent predictors of ongoing disability at two-year follow up. The meaning of the latter result is unclear; it may reflect more severely ill people seeking the support of other sufferers, or it may be that the attributions and advice of support groups perpetuates disability.
Sharpe M, Hawton K, Seagroatt V, Pasvol G 1992 Follow up of patients presenting with fatigue to an infectious diseases clinic. Br Med J 305: 147-152."
Somatisation, illness attribution and the sociocultural psychiatry of chronic fatigue syndrome.
Susan E Abbey
1993 Chronic fatigue syndrome. Wiley, Chichester (Ciba Foundation Symposium 173) p238-261 @p243