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Volume 9
Issue 11
10.3390/healthcare9111405
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Article

Analysis of Endoscopic Evaluation Reliability for Ulcerative Colitis in Histological Remission

by
Mimari Kanazawa
1,
Keiichi Tominaga
1,*,
Akira Yamamiya
1,
Takanao Tanaka
1,
Shoko Watanabe
1,
Takeshi Sugaya
1,
Keiichiro Abe
1,
Akira Kanamori
1,
Takahiro Arisaka
1,
Koki Hoshi
1,
Makoto Iijima
1,
Kenichi Goda
1,
Yasuo Haruyama
2 and
Atsushi Irisawa
1
1
Department of Gastroenterology, Dokkyo Medical University, Tochigi 321-0293, Japan
2
Integrated Research Faculty for Advanced Medical Science, Dokkyo Medical University, Tochigi 321-0293, Japan
*
Author to whom correspondence should be addressed.
Healthcare 2021, 9(11), 1405; https://doi.org/10.3390/healthcare9111405
Submission received: 18 September 2021 / Revised: 16 October 2021 / Accepted: 18 October 2021 / Published: 20 October 2021
(This article belongs to the Special Issue The Advanced Role of Gastrointestinal Endoscopy for Inflammatory Disease)
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Abstract

The Mayo endoscopic subscore (MES) is a major endoscopic scoring system used to assign a status of mucosal inflammation and disease activity to patients with ulcerative colitis (UC). Using interobserver reliability (IOR), this study clarified the difficulties for endoscopic observers imposed by MES parameters used for the endoscopic evaluation of UC in histological remission. First, 42 endoscopists of four observer groups examined each MES parameter, which were evaluated from endoscopically obtained images of 100 cases as Grade 0 or 1 of the Nancy histological index of histopathological inflammation. Then, IOR was assessed using multiple κ statistics for each finding of MES. The results showed that IOR among all the observers was slight or fair for all the parameters, indicating a low IOR. The experts of the UC practice group had “moderate” or higher IOR for seven of the nine parameters, whereas “slight” or “fair” results were found for all parameters by the trainee group. The IOR for each MES parameter was calculated separately for the observer groups. All the groups showed “slight” or “fair” for “Erythema” and “Decreased vascular pattern”. Large differences between the endoscopists were found in the IOR for the MES parameters in UC in histological remission. Even among UC practice experts, the IOR was low for “Erythema” and “Decreased vascular pattern”.
Keywords: endoscopic remission; histological remission; interobserver reliability; Mayo endoscopic subscore; ulcerative colitis endoscopic remission; histological remission; interobserver reliability; Mayo endoscopic subscore; ulcerative colitis

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MDPI and ACS Style

Kanazawa, M.; Tominaga, K.; Yamamiya, A.; Tanaka, T.; Watanabe, S.; Sugaya, T.; Abe, K.; Kanamori, A.; Arisaka, T.; Hoshi, K.; et al. Analysis of Endoscopic Evaluation Reliability for Ulcerative Colitis in Histological Remission. Healthcare 2021, 9, 1405. https://doi.org/10.3390/healthcare9111405

AMA Style

Kanazawa M, Tominaga K, Yamamiya A, Tanaka T, Watanabe S, Sugaya T, Abe K, Kanamori A, Arisaka T, Hoshi K, et al. Analysis of Endoscopic Evaluation Reliability for Ulcerative Colitis in Histological Remission. Healthcare. 2021; 9(11):1405. https://doi.org/10.3390/healthcare9111405

Chicago/Turabian Style

Kanazawa, Mimari, Keiichi Tominaga, Akira Yamamiya, Takanao Tanaka, Shoko Watanabe, Takeshi Sugaya, Keiichiro Abe, Akira Kanamori, Takahiro Arisaka, Koki Hoshi, and et al. 2021. "Analysis of Endoscopic Evaluation Reliability for Ulcerative Colitis in Histological Remission" Healthcare 9, no. 11: 1405. https://doi.org/10.3390/healthcare9111405

APA Style

Kanazawa, M., Tominaga, K., Yamamiya, A., Tanaka, T., Watanabe, S., Sugaya, T., Abe, K., Kanamori, A., Arisaka, T., Hoshi, K., Iijima, M., Goda, K., Haruyama, Y., & Irisawa, A. (2021). Analysis of Endoscopic Evaluation Reliability for Ulcerative Colitis in Histological Remission. Healthcare, 9(11), 1405. https://doi.org/10.3390/healthcare9111405

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