PMID- 24439270
OWN - NLM
STAT- MEDLINE
DCOM- 20150422
LR  - 20220310
IS  - 1573-2509 (Electronic)
IS  - 0920-9964 (Print)
IS  - 0920-9964 (Linking)
VI  - 153
IP  - 1-3
DP  - 2014 Mar
TI  - Reliability and validity of the Calgary Depression Scale for Schizophrenia (CDSS) 
      in youth at clinical high risk for psychosis.
PG  - 64-7
LID - S0920-9964(13)00692-0 [pii]
LID - 10.1016/j.schres.2013.12.014 [doi]
AB  - Assessment of depression in individuals who are considered to be at clinical high 
      risk (CHR) for psychosis is important as high rates of depression have been 
      reported in CHR individuals. The Calgary Depression Scale (CDSS) is the most 
      widely used scale for assessing depression in schizophrenia. It has excellent 
      psychometric properties, internal consistency, inter-rater reliability, 
      sensitivity, specificity, and discriminant and convergent validity. The aim of 
      this study was to test the reliability and validity of the CDSS in a sample of 
      youth at CHR for psychosis. Participants were assessed for depression, presence 
      of axis 1 mood disorders, and prodromal symptoms using the CDSS, the Structured 
      Clinical Interview for DSM-IV Disorders (SCID-1), and the Scale of Prodromal 
      Symptoms (SOPS). The CDSS total score as well as all individual items, except 
      "guilty ideas of reference," were significantly associated with the presence of a 
      major depressive disorder. Significant correlations were observed between CDSS 
      total score and the dysphoric mood item on the SOPS. There was some evidence of 
      overlap between the CDSS and both attenuated positive symptoms and negative 
      symptoms as assessed by the SOPS. It is concluded that CDSS is a reliable scale 
      suitable for assessing depression in individuals considered to be at CHR for 
      psychosis.
CI  - Copyright (c) 2013 Elsevier B.V. All rights reserved.
FAU - Addington, Jean
AU  - Addington J
AD  - Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, 
      Alberta, Canada. Electronic address: jmadding@ucalgary.ca.
FAU - Shah, Hely
AU  - Shah H
AD  - Department of Neurosciences, University of Calgary, Canada.
FAU - Liu, Lu
AU  - Liu L
AD  - Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, 
      Alberta, Canada.
FAU - Addington, Donald
AU  - Addington D
AD  - Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, 
      Alberta, Canada.
LA  - eng
GR  - U01 MH081984/MH/NIMH NIH HHS/United States
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20140116
PL  - Netherlands
TA  - Schizophr Res
JT  - Schizophrenia research
JID - 8804207
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - Canada
MH  - Depression/*diagnosis/*etiology
MH  - Female
MH  - Humans
MH  - Longitudinal Studies
MH  - Male
MH  - Predictive Value of Tests
MH  - *Psychiatric Status Rating Scales
MH  - Psychotic Disorders/*complications
MH  - Reproducibility of Results
MH  - Risk
MH  - Schizophrenia/*complications
MH  - *Schizophrenic Psychology
MH  - Statistics as Topic
MH  - Young Adult
PMC - PMC3982913
MID - NIHMS553121
OTO - NOTNLM
OT  - Calgary Depression Scale for Schizophrenia
OT  - Clinical high risk
OT  - Depression
OT  - Psychosis
OT  - Schizophrenia
COIS- Conflict of Interest: All authors declare that they have no conflict of interest.
EDAT- 2014/01/21 06:00
MHDA- 2015/04/23 06:00
PMCR- 2015/03/01
CRDT- 2014/01/21 06:00
PHST- 2013/08/15 00:00 [received]
PHST- 2013/12/19 00:00 [revised]
PHST- 2013/12/23 00:00 [accepted]
PHST- 2014/01/21 06:00 [entrez]
PHST- 2014/01/21 06:00 [pubmed]
PHST- 2015/04/23 06:00 [medline]
PHST- 2015/03/01 00:00 [pmc-release]
AID - S0920-9964(13)00692-0 [pii]
AID - 10.1016/j.schres.2013.12.014 [doi]
PST - ppublish
SO  - Schizophr Res. 2014 Mar;153(1-3):64-7. doi: 10.1016/j.schres.2013.12.014. Epub 
      2014 Jan 16.