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https://hdl.handle.net/2440/55277
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Type: | Journal article |
Title: | The validity of the CGI severity and improvement scales as measures of clinical effectiveness suitable for routine clinical use |
Author: | Berk, M. Ng, F. Dodd, S. Callaly, T. Campbell, S. Bernardo, M. Trauer, T. |
Citation: | Journal of Evaluation in Clinical Practice, 2008; 14(6):979-983 |
Publisher: | Blackwell Science Ltd |
Issue Date: | 2008 |
ISSN: | 1356-1294 1365-2753 |
Statement of Responsibility: | Michael Berk, Felicity Ng, Seetal Dodd, Tom Callaly, Shirley Campbell, Michelle Bernardo and Tom Trauer |
Abstract: | <h4>Objective</h4>The Clinical Global Impression Scale (CGI) is established as a core metric in psychiatric research. This study aims to test the validity of CGI as a clinical outcome measure suitable for routine use in a private inpatient setting.<h4>Methods</h4>The CGI was added to a standard battery of routine outcome measures in a private psychiatric hospital. Data were collected on consecutive admissions over a period of 24 months, which included clinical diagnosis, demographics, service utilization and four routine measures (CGI, HoNOS, MHQ-14 and DASS-21) at both admission and discharge. Descriptive and comparative data analyses were performed.<h4>Results</h4>Of 786 admissions in total, there were 624 and 614 CGI-S ratings completed at the point of admission and discharge, respectively, and 610 completed CGI-I ratings. The admission and discharge CGI-S scores were correlated (r = 0.40), and the indirect improvement measures obtained from their differences were highly correlated with the direct CGI-I scores (r = 0.71). The CGI results reflected similar trends seen in the other three outcome measures.<h4>Conclusions</h4>The CGI is a valid clinical outcome measure suitable for routine use in an inpatient setting. It offers a number of advantages, including its established utility in psychiatric research, sensitivity to change, quick and simple administration, utility across diagnostic groupings, and reliability in the hands of skilled clinicians. |
Keywords: | assessment CGI depression outcome measure routine use validity |
DOI: | 10.1111/j.1365-2753.2007.00921.x |
Published version: | http://dx.doi.org/10.1111/j.1365-2753.2007.00921.x |
Appears in Collections: | Aurora harvest Psychiatry publications |
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