PMID- 25219937
OWN - NLM
STAT- MEDLINE
DCOM- 20150929
LR  - 20141203
IS  - 1873-7862 (Electronic)
IS  - 0924-977X (Linking)
VI  - 24
IP  - 11
DP  - 2014 Nov
TI  - Equipercentile linking of scales measuring functioning and symptoms: examining 
      the GAF, SOFAS, CGI-S, and PANSS.
PG  - 1767-72
LID - S0924-977X(14)00243-0 [pii]
LID - 10.1016/j.euroneuro.2014.08.009 [doi]
AB  - The Global Assessment of Functioning (GAF) and the Social and Occupational 
      Functioning Assessment Scale (SOFAS) are rating scales commonly used to assess 
      the level of functioning in patients with schizophrenia. To understand the 
      correspondence of scores between GAF and SOFAS, and what they mean from a 
      clinical point of view, we examined the linkage of (a) GAF with SOFAS total 
      scores, (b) GAF with Clinical Global Impressions Scale (CGI) and Positive and 
      Negative Syndrome Scale (PANSS), and (c) SOFAS with CGI and PANSS. We used the 
      equipercentile linking method to identify corresponding scores of simultaneous 
      GAF, SOFAS, PANSS and CGI ratings in 1208 patients from a naturalistic European 
      cohort study. Data were collected at baseline and at months 6, 12, 18 and 24. GAF 
      and SOFAS total scores were found to be practically exchangeable. Both scales had 
      strong negative correlations with CGI and PANSS; the linkage also suggested the 
      presence of slight impairment in functioning even when patients are free from 
      symptoms. These findings are important for the comparison of scores when 
      different rating scales are used. We present a detailed conversion table in an 
      online supplement.
CI  - Copyright (c) 2014 Elsevier B.V. and ECNP. All rights reserved.
FAU - Samara, Myrto T
AU  - Samara MT
AD  - Department of Psychiatry and Psychotherapy, Technische Universitat Munchen, 
      Klinikum rechts der Isar, Ismaningerstr. 22, 81675 Munich, Germany.
FAU - Engel, Rolf R
AU  - Engel RR
AD  - Psychiatrische Klinik der Ludwig-Maximilian-Universitat Munchen, Nussbaumstrasse 
      7, 80336 Munich, Germany.
FAU - Millier, Aurelie
AU  - Millier A
AD  - Creativ-Ceutical, 215 rue du Faubourg St-Honore, 75008 Paris, France.
FAU - Kandenwein, Julia
AU  - Kandenwein J
AD  - Medical Therapeutic Area Lead Neuroscience and Rheumatology, Roche Pharma AG, 
      Medical Management Specialty Care, Emil-Barell-Str.1, 79639 Grenzach-Wyhlen, Bau 
      200, 3-N.10, Germany.
FAU - Toumi, Mondher
AU  - Toumi M
AD  - Aix Marseille University, Faculte de Medecine, Laboratoire de Sante Publique, 27 
      bd Jean Moulin, 13385 Marseille Cedex 05, France.
FAU - Leucht, Stefan
AU  - Leucht S
AD  - Department of Psychiatry and Psychotherapy, Technische Universitat Munchen, 
      Klinikum rechts der Isar, Ismaningerstr. 22, 81675 Munich, Germany. Electronic 
      address: Stefan.Leucht@lrz.tum.de.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20140820
PL  - Netherlands
TA  - Eur Neuropsychopharmacol
JT  - European neuropsychopharmacology : the journal of the European College of 
      Neuropsychopharmacology
JID - 9111390
SB  - IM
MH  - Adult
MH  - Cohort Studies
MH  - Female
MH  - Humans
MH  - Male
MH  - *Psychiatric Status Rating Scales
MH  - Psychometrics
MH  - Schizophrenia/*diagnosis
MH  - Young Adult
OTO - NOTNLM
OT  - Equipercentile
OT  - Functioning
OT  - GAF
OT  - Linking
OT  - SOFAS
OT  - Schizophrenia
EDAT- 2014/09/16 06:00
MHDA- 2015/09/30 06:00
CRDT- 2014/09/16 06:00
PHST- 2014/07/08 00:00 [received]
PHST- 2014/08/11 00:00 [revised]
PHST- 2014/08/13 00:00 [accepted]
PHST- 2014/09/16 06:00 [entrez]
PHST- 2014/09/16 06:00 [pubmed]
PHST- 2015/09/30 06:00 [medline]
AID - S0924-977X(14)00243-0 [pii]
AID - 10.1016/j.euroneuro.2014.08.009 [doi]
PST - ppublish
SO  - Eur Neuropsychopharmacol. 2014 Nov;24(11):1767-72. doi: 
      10.1016/j.euroneuro.2014.08.009. Epub 2014 Aug 20.