|
Full name of scale |
CGI (all)– Clinical Global Impression |
|
Languages |
English and French, over 35 languages |
|
Rater |
Clinician-rated |
|
Training |
Training required |
|
Utility |
Amongst the most widely used of extant brief assessment tools in psychiatry.
The main purpose is to provide a global rating of illness severity, improvement, and response to treatment. The CGI is a 3-item observer-rated scale that measures illness severity (CGIS), global improvement or change (CGIC) and therapeutic response. Used in clinical trials, with all research populations; used for measurement-based care |
|
Time to complete |
Approximately 1-5 minutes. Varies with familiarity with patient |
|
Cost/license |
Open Access. For different version and languages: https://eprovide.mapi-trust.org/instruments/clinical-global-impressions-scale-improvement-severity-change-and-efficacy#contact_and_conditions_of_use |
Guy, W. (1976). ECDEU assessment manual for psychopharmacology. US Department of Health, Education, and Welfare, Public Health Service ….
Spearing, M. K., Post, R. M., Leverich, G. S., Brandt, D., & Nolen, W. (1997). Modification of the Clinical Global Impressions (CGI) Scale for use in bipolar illness (BP): The CGI-BP. Psychiatry Research, 73(3), 159–171. Follow this link for the article.
Haro, J. M., Kamath, S. A., Ochoa, S. O., Novick, D., Rele, K., Fargas, A., … Kharbeng, A. (2003). The Clinical Global Impression–Schizophrenia scale: A simple instrument to measure the diversity of symptoms present in schizophrenia. Acta Psychiatrica Scandinavica, 107, 16–23. Follow this link for the article.
