Narrow-band imaging-modified Kyoto score predicts pathological upgrading after endoscopic submucosal dissection in gastric intraepithelial neoplasia

doi:10.3748/wjg.123704

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World Journal of Gastroenterology

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1007-9327

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.

World J Gastroenterol. Dec 7, 2026; 32(45): 123704
Published online Dec 7, 2026. doi: 10.3748/wjg.123704

Table 4 Predictive performance of the conventional and narrow-band imaging-modified Kyoto scores, % (95% confidence interval)

Parameter	Conventional Kyoto score	NBI-modified Kyoto score	P value
AUC	0.769 (0.707-0.830)	0.862 (0.812-0.911)	0.002¹
Optimal cutoff	≥ 4	≥ 4	-
Sensitivity	62.00 (52.00-71.10)	76.10 (67.40-84.80)	-
Specificity	83.50 (77.20-89.80)	83.50 (77.20-89.80)	-
PPV	72.57 (64.70-79.30)	76.47 (69.00-82.70)	-
NPV	75.70 (69.10-81.70)	83.22 (77.50-88.00)	-
Accuracy	74.67 (68.80-80.10)	80.44 (75.26-85.62)	-

¹P value for comparison of the area under the curves using the DeLong test.

The optimal cutoff value was determined using the Youden index. AUC: Area under the receiver operating characteristic curve; NPV: Negative predictive value; PPV: Positive predictive value.

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Citation: Chen T, Feng AQ, Zhang WF, Dang NY, Ye F, Zhang GX. Narrow-band imaging-modified Kyoto score predicts pathological upgrading after endoscopic submucosal dissection in gastric intraepithelial neoplasia. World J Gastroenterol 2026; 32(45): 123704
URL: https://www.wjgnet.com/1007-9327/full/v32/i45/123704.htm
DOI: https://dx.doi.org/10.3748/wjg.123704

Chen T, Feng AQ, Zhang WF, Dang NY, Ye F, Zhang GX. Narrow-band imaging-modified Kyoto score predicts pathological upgrading after endoscopic submucosal dissection in gastric intraepithelial neoplasia. World J Gastroenterol 2026; 32(45): 123704 [DOI: 10.3748/wjg.123704]

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