RT Journal
A1 Kendell RE, Brockington IF, Leff JP
T1 PRognostic implications of six alternative definitions of schizophrenia
JF Archives of General Psychiatry
JO Archives of General Psychiatry
YR 1979
FD January 1
VO 36
IS 1
SP 25
OP 31
DO 10.1001/archpsyc.1979.01780010031002
UL http://dx.doi.org/10.1001/archpsyc.1979.01780010031002
AB • The ability of six different operational definitions of schizophrenia to identify prospectively patients whose eventual prognosis would be poor was studied using data from a six-year follow-up of a series of 134 patients with functional psychoses. All six definitions were more successful at predicting a poor symptomatic outcome than a poor social outcome. Spitzer's Research Diagnostic Criteria, Carpenter's flexible criteria, and Langfeldt's criteria predicted a poor outcome as well as the original clinical diagnoses and were considerably better than the New Haven criteria, Schneider's first rank symptoms, or the computer program Catego.