The association between physical and psychological disorders has been
demonstrated repeatedly. There are a number of explanations for this a
ssociation, each of them pointing to specific diseases and operational
izations of mental distress. In this article, the relationship between
various somatic diseases and a number of indices for psychological di
stress was investigated. Within one study population, patients with di
fferent somatic diseases were identified, and their experience with me
ntal distress, their requests for help from their GP during consultati
ons, and their GPs' diagnoses were registered and compared with the to
tal study population: It appears that relationships could be demonstra
ted between experience of distress and presentation of psychological s
ymptoms during consultations, on the one hand, and common physical dis
orders, on the other. Patients with neurological diseases (Parkinson's
, epilepsy, multiple sclerosis) and gastric ulcers showed the same rel
ationships, but were also more frequently diagnosed by the GP as havin
g psychological disorders. Patients with a number of other serious som
atic diseases, such as diabetes, cancer, and arthritis, did not distin
guish themselves in a positive way on one of indices for psychological
distress. (C) 1997 Elsevier Science Inc.