Original articleClinical endoscopyThe Boston bowel preparation scale: a valid and reliable instrument for colonoscopy-oriented research
Section snippets
Patients and methods
The study was approved by the institutional review board of the Boston University Medical Center.
Results
The BBPS training and testing DVD was viewed by 22 members of our gastroenterology section, including 13 full-time faculty, 8 fellows, and 1 physician assistant with more than 10 years' experience in performing flexible sigmoidoscopy. Individuals viewed the DVD twice, with a mean (SD) of 10 ± 3 weeks between viewings. The ICC for interobserver agreement of a single reading in total BBPS scores was 0.74 (95% predictive interval 0.67-0.80). The weighted kappa value for intraobserver agreement in
Discussion
We developed a valid and reliable bowel-preparation rating scale that can be easily taught with a brief instructional DVD. The BBPS demonstrated good intraobserver and interobserver reliability among 22 physicians, including both fellows and attendings. Prospective use of the BBPS during screening colonoscopy showed significant associations with clinical outcomes, such as polyp-detection rates, recommendations for repeated procedures, and colonoscope insertion and withdrawal times.
Many
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DISCLOSURE: All authors disclosed no financial relationships relevant to this publication. The study was supported by an ASGE/TAP Endoscopic Research Award (B.C.J.) and National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases award K08-DK070706 (B.C.J.).
Presented at Digestive Disease Week, May 20-23, 2007, Washington, DC (Gastrointest Endosc 2007;65:AB361).
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