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PECC-Factor structure and findings in three longitudinal cohorts of patients with schizophrenia

Lindstrom, Eva; Tuninger, Eva LU and Levander, Sten (2012) In Nordic Journal of Psychiatry 66(1). p.33-39
Abstract
Background: Symptom control by drug treatment is the most important task in routine clinical care of patients with schizophrenia. Structured assessment methods are needed in this task but not used much. The US-developed Positive and Negative Syndrome Scale (PANSS) is a standard tool for symptom assessment. The Psychosis Evaluation tool for Common use by Caregivers (PECC) was constructed in Europe some years ago, with the intent to overcome some of the PANSS drawbacks. Aims and methods: To validate PECC on three longitudinal cohorts of schizophrenic patients representative of Swedish outpatients (n = 225, six assessments over 5 years), international forensic patients (n = 186) and matched non-forensic controls (n = 116), five assessments... (More)
Background: Symptom control by drug treatment is the most important task in routine clinical care of patients with schizophrenia. Structured assessment methods are needed in this task but not used much. The US-developed Positive and Negative Syndrome Scale (PANSS) is a standard tool for symptom assessment. The Psychosis Evaluation tool for Common use by Caregivers (PECC) was constructed in Europe some years ago, with the intent to overcome some of the PANSS drawbacks. Aims and methods: To validate PECC on three longitudinal cohorts of schizophrenic patients representative of Swedish outpatients (n = 225, six assessments over 5 years), international forensic patients (n = 186) and matched non-forensic controls (n = 116), five assessments over 2 years for both. Results : The factor structure of PECC appears to be highly robust. Norm values (in percentiles) were calculated on the materials. Such data provides for analyses of symptom profiles and improvement over time measured in absolute numbers. Forensic patients appear to have a much lower symptom load (except for cognitive symptoms) than the other groups. Forensic controls had much shorter inpatient times than any other group and never caught up with respect to symptom control, even after 2 years. These differences suggest that the scale is clinically valid. Conclusion: PECC has a more robust factor structure than PANSS and is simpler to use. Percentile norms have been constructed for outpatients with schizophrenia in general and forensic psychiatry. Percentile scores are accessed readily by the net. PECC is available in many languages. Its separate self-harm item may improve assessments of suicide risk among patients with schizophrenia. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Assessment of symptoms, Factor structure, Forensic, Longitudinal, Schizophrenia, Suicide ideation
in
Nordic Journal of Psychiatry
volume
66
issue
1
pages
33 - 39
publisher
Informa Healthcare
external identifiers
  • wos:000298965100007
  • scopus:84855690012
ISSN
1502-4725
DOI
10.3109/08039488.2011.595499
language
English
LU publication?
yes
id
49ceb135-c3e4-4573-b98f-9821944b0818 (old id 2358526)
date added to LUP
2012-03-01 11:30:13
date last changed
2017-01-01 03:19:56
@article{49ceb135-c3e4-4573-b98f-9821944b0818,
  abstract     = {Background: Symptom control by drug treatment is the most important task in routine clinical care of patients with schizophrenia. Structured assessment methods are needed in this task but not used much. The US-developed Positive and Negative Syndrome Scale (PANSS) is a standard tool for symptom assessment. The Psychosis Evaluation tool for Common use by Caregivers (PECC) was constructed in Europe some years ago, with the intent to overcome some of the PANSS drawbacks. Aims and methods: To validate PECC on three longitudinal cohorts of schizophrenic patients representative of Swedish outpatients (n = 225, six assessments over 5 years), international forensic patients (n = 186) and matched non-forensic controls (n = 116), five assessments over 2 years for both. Results : The factor structure of PECC appears to be highly robust. Norm values (in percentiles) were calculated on the materials. Such data provides for analyses of symptom profiles and improvement over time measured in absolute numbers. Forensic patients appear to have a much lower symptom load (except for cognitive symptoms) than the other groups. Forensic controls had much shorter inpatient times than any other group and never caught up with respect to symptom control, even after 2 years. These differences suggest that the scale is clinically valid. Conclusion: PECC has a more robust factor structure than PANSS and is simpler to use. Percentile norms have been constructed for outpatients with schizophrenia in general and forensic psychiatry. Percentile scores are accessed readily by the net. PECC is available in many languages. Its separate self-harm item may improve assessments of suicide risk among patients with schizophrenia.},
  author       = {Lindstrom, Eva and Tuninger, Eva and Levander, Sten},
  issn         = {1502-4725},
  keyword      = {Assessment of symptoms,Factor structure,Forensic,Longitudinal,Schizophrenia,Suicide ideation},
  language     = {eng},
  number       = {1},
  pages        = {33--39},
  publisher    = {Informa Healthcare},
  series       = {Nordic Journal of Psychiatry},
  title        = {PECC-Factor structure and findings in three longitudinal cohorts of patients with schizophrenia},
  url          = {http://dx.doi.org/10.3109/08039488.2011.595499},
  volume       = {66},
  year         = {2012},
}