Risk stratification nomogram for diabetic foot ulcer recurrence after healing in type 2 diabetes

doi:10.4239/wjd.121505

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World Journal of Diabetes

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1948-9358

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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 Diabetes. Aug 15, 2026; 17(8): 121505
Published online Aug 15, 2026. doi: 10.4239/wjd.121505

Table 4 Model performance metrics

Metric	Training cohort (n = 218)	Validation cohort (n = 94)
C-index (95%CI)	0.832 (0.789-0.875)	0.826 (0.787-0.865)
Sensitivity at 1 year	82.3%	80.6%
Specificity at 1 year	78.9%	77.4%
Positive predictive value	74.2%	73.1%
Negative predictive value	85.7%	84.3%
Calibration slope	0.98	0.96
Calibration intercept	0.02	0.04

CI: Confidence interval.

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Citation: Dai BW, Qi F, Xu GY, Sun W, Tao YN, Ze K. Risk stratification nomogram for diabetic foot ulcer recurrence after healing in type 2 diabetes. World J Diabetes 2026; 17(8): 121505
URL: https://www.wjgnet.com/1948-9358/full/v17/i8/121505.htm
DOI: https://dx.doi.org/10.4239/wjd.121505

Dai BW, Qi F, Xu GY, Sun W, Tao YN, Ze K. Risk stratification nomogram for diabetic foot ulcer recurrence after healing in type 2 diabetes. World J Diabetes 2026; 17(8): 121505 [DOI: 10.4239/wjd.121505]

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