1. Bispectral Index Monitoring of Conscious Sedation With the Combination of Meperidine and Midazolam During Endoscopy 
Mohammed A. Qadeer, John J. Vargo, Sandeep Patel, John A. Dumot, A. Rocio Lopez, Patricia A. Trolli, Darwin L. Conwell, Tyler Stevens, Gregory Zuccaro 
Clinical Gastroenterology and Hepatology 
Volume 6, Issue 1, Pages (January 2008)
DOI: /j.cgh
Copyright © 2008 AGA Institute Terms and Conditions

2. Figure 1
Box plots showing a significant overlap between BIS and MOAA/S scores that increase with the depth of sedation. The plots also demonstrate a slightly better correlation of BIS scores with moderate sedation compared with deep sedation.
Clinical Gastroenterology and Hepatology 2008 6, DOI: ( /j.cgh )
Copyright © 2008 AGA Institute Terms and Conditions

3. Figure 2
Graph showing the probability of deep sedation as a function of BIS scores. Increasing the slope of this curve would potentially enhance the accuracy of BIS for differentiating deep from moderate sedation.
Clinical Gastroenterology and Hepatology 2008 6, DOI: ( /j.cgh )
Copyright © 2008 AGA Institute Terms and Conditions

4. Figure 3
Test characteristics for detecting deep sedation with varying BIS cut-off scores. BIS score of 82 was suggested as an ideal score by Bower et al8 but has only average test accuracy.
Clinical Gastroenterology and Hepatology 2008 6, DOI: ( /j.cgh )
Copyright © 2008 AGA Institute Terms and Conditions