Figure 1From: Is there a linear relationship between the Brief Psychiatric Rating Scale and the Clinical Global Impression-Schizophrenia scale? A retrospective analysis Scatter plot of the 18-item BPRS total score and the CGI-SCH score. An upper convexity curve similar to a logarithmic curve was evident, and a linear relationship was not apparent. The range of the 18-item BPRS was 18-126, and that of the CGI-SCH was 1-7.Back to article page