Validation of a New Bowel Preparation Scale for Measuring Colon Cleansing for Colonoscopy: The Chicago Bowel Preparation Scale
Validation of a New Bowel Preparation Scale for Measuring Colon Cleansing for Colonoscopy: The Chicago Bowel Preparation Scale
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DOI：
10.1038/ctg.2013.16
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发表时间：
2013-12-01
影响因子：
3.6
通讯作者：
Karrison, Theodore G.
中科院分区：
文献类型：
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作者：
Gerard, David P.;Foster, Diane B.;Karrison, Theodore G.
目的：目前的肠道准备量表（BPS）具有显著的局限性，包括无法区分充分清洁高百分比结肠的肠道准备。我们评估了新的芝加哥BPS的可靠性和有效性，并将其与现有的BPSs.METHODS：我们进行了前瞻性的150结肠的清洁度评价。使用kappa和Pearson相关系数评估评估者间一致性。每个结肠由胃肠病学家和医师助理使用渥太华BPS、波士顿BPS、二分（适足/不足）结果：胃肠病学家和医师助理之间的Pearson相关系数为0.79（95%置信区间（CI）：0.73，0.85）、0.79（95% CI：0.72，0.84）和0.84（95% CI：0.79，0.88）。渥太华BPS的右、中、远端结肠段评级的Kappa系数分别为0.66、0.53和0.49;波士顿BPS的Kappa系数分别为0.64、0.66和0.54;芝加哥BPS的Kappa系数分别为0.70、0.62和0.63。芝加哥BPS和其他BPS之间的差异无统计学意义。芝加哥BPS表现出最好的BPS总分和适当/不适当的BPS.CONCLUSIONS之间的对应关系：本研究证明了芝加哥BPS的效度和信度。更好定义的分级标准、更好设计的数字评级量表以及芝加哥BPS总分与适当/不适当BPS之间更好的对应关系使芝加哥BPS成为渥太华BPS和波士顿BPS的有吸引力的替代方案。
OBJECTIVES: Current bowel preparation scales (BPSs) have significant limitations including an inability to distinguish among bowel preparations that adequately cleanse a high percentage of colons. We assessed the reliability and validity of the new Chicago BPS and compared it with existing BPSs.METHODS: We performed a prospective evaluation of the cleanliness of 150 colons. Inter-rater agreement was assessed using kappa and Pearson correlation coefficients. Each colon was rated by a gastroenterologist and physician's assistant using the Ottawa BPS, the Boston BPS, a dichotomous (adequate/inadequate) BPS (where adequate was defined as being able to visualize at least 95% of the mucosa), and the Chicago BPS.RESULTS: Pearson correlation coefficients between the gastroenterologists and physician's assistant for total BPS scores were 0.79 (95% confidence interval (CI): 0.73, 0.85), 0.79 (95% CI: 0.72, 0.84), and 0.84 (95% CI: 0.79, 0.88) for the Ottawa, Boston, and Chicago BPSs, respectively. Kappa coefficients for right, middle, and distal colon segment ratings were 0.66, 0.53, and 0.49, respectively, for the Ottawa BPS; 0.64, 0.66, and 0.54, respectively, for the Boston BPS; and 0.70, 0.62, and 0.63, respectively, for the Chicago BPS. Differences between the Chicago BPS and the other BPSs were not statistically significant. The Chicago BPS exhibited the best correspondence between BPS total score and the adequate/inadequate BPS.CONCLUSIONS: This study demonstrated the validity and reliability of the Chicago BPS. The better defined grading criteria, better designed numerical ratings scale, and better correspondence between Chicago BPS total score and the adequate/inadequate BPS make the Chicago BPS an attractive alternative to the Ottawa BPS and the Boston BPS.