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. 2005 Jun;54(6):782–788. doi: 10.1136/gut.2004.056358

Figure 7.

Figure 7

 Optimal improvement cut offs for the non-invasive indices are sensitive and specific. The cut offs were chosen to optimise sensitivity and specificity for improvement. For the simple clinical colitis activity index (SCCAI) (A) this cut off was a decrease by >1.5 points, resulting in a sensitivity of 0.67 and a specificity of 0.80. For the Seo index (B), this cut off was a decrease by >30 points, resulting in a sensitivity of 0.67 and a specificity of 0.91. For the inflammatory bowel disease quality of life index (IBDQ) (C), this cut off was an increase by >20 points, resulting in a sensitivity of 0.82 and a specificity of 0.91.