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Pilot validation of the B oston B owel P reparation S cale in C hina
Author(s) -
Gao Yan,
Lin JuSheng,
Zhang HouDe,
Lin MuXian,
Cheng ChunSheng,
Wu ShengZhou
Publication year - 2013
Publication title -
digestive endoscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.5
H-Index - 56
eISSN - 1443-1661
pISSN - 0915-5635
DOI - 10.1111/j.1443-1661.2012.01356.x
Subject(s) - medicine , intraclass correlation , kappa , reliability (semiconductor) , validity , psychometrics , clinical psychology , philosophy , linguistics , power (physics) , physics , quantum mechanics
Background and Aim The B oston B owel P reparation S cale ( BBPS ) is a novel bowel cleanliness rating scale that has undergone validation at B oston U niversity M edical C enter, B oston, MA , USA . Thus far, there is no standard recognized bowel preparation scale in C hina. The aim of the present study was to analyze the reliability and validity of the BBPS for the assessment of bowel preparation quality ( BPQ ) in C hina. Methods A group of 49 participants from several hospitals in G uangdong province viewed a video demonstration of BBPS provided by B oston M edical C enter and participated in a continuing education seminar. Inter‐observer reliability was assessed for three testing colonoscopies in the video. Three months later, 13 of the participants repeated the test, and intra‐observer reliability was assessed. The BBPS was then applied prospectively in 1012 screening colonoscopies and BBPS scores were compared with polyp‐detection rate. Intraclass correlation coefficients ( ICC ) and weighted Kappa values assessed inter‐ and intra‐rater reliability, respectively. The association of BBPS scores with polyp‐detection rates was calculated by χ 2 tests. Results The inter‐observer ICC of BBPS scores was 0.987 (95% CI , 0.949–1.0). The weighted K appa for BBPS scores was 0.671 (95% CI , 0.507–0.841). For 1012 screening colonoscopies, the mean BBPS score was 6.9 ± 1.8. BBPS scores ≥ 5 were associated with a higher polyp‐detection rate (35%) than scores < 5 (18%) ( P < 0.05). Conclusion The BBPS is a valid and reliable measure of BPQ , and this validity and reliability was maintained for C hinese physicians taught via video.