The British Journal of Psychiatry 137: 140-147 (1980)
© 1980 The Royal College of Psychiatrists
A symptom schedule for the diagnosis of borderline schizophrenia: a first report
PJ Khouri, RJ Haier, RO Rieder and D Rosenthal
The concepts of 'borderline' and 'borderline schizophrenia' remain a
confusing area in psychiatry. In its functional use, the word 'borderline'
refers to a hypothesized level of functioning on a continuum which extends
from normality to psychosis, e.g. borderline personality organization. In
the phenomenological use 'borderline' qualifies a psychiatric diagnosis,
referring to a milder form of the disease process, e.g. borderline
schizophrenia. In this paper we attempted to define and validate the
concept of borderline schizophrenia using case records from the Danish
Adoption study with this diagnosis and rating the cases on a new
instrument: the Symptom Schedule for the Diagnosis of Borderline
Schizophrenia, found reliable, and discriminating cases of borderline
schizophrenia from cases of neurosis and personality disorder.