Objective: This paper reviews the potential value in daily clinical practice of an easily applied research tool, the Clinical Global Impressions (CGI) Scale, for the nonresearcher clinician to quantify and track patient progress and treatment response over time.
Method: The instrument is described and sample patient scenarios are provided with scoring rationales and a practical charting system.
Conclusion: The CGI severity and improvement scales offer a readily understood, practical measurement tool that can easily be administered by a clinician in a busy clinical practice setting.
Keywords: Clinical Global Impressions Scale; quantification of patient outcome; research tool for clinician; tracking medication response.