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Table 2 Improved response format for the Clinical Global Impression improvement scale.

From: The improved Clinical Global Impression Scale (iCGI): development and validation in depression

6 Ideal improvement
5 Very considerable improvement
4 Considerable improvement
3 Moderate improvement
2 Slight improvement
1 Very slight improvement
0 State unchanged.
-1 Very slight deterioration
-2 Slight deterioration.
-3 Moderate deterioration
-4 Considerable deterioration
-5 Very considerable deterioration
-6 Maximum deterioration