Volume 26, Issue 7 pp. 1402-1413
ORIGINAL ARTICLE

Association between hyperglycemia and the malignant transformation of oral leukoplakia in China

Jin Li

Jin Li

Department of Oral Medicine, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, P. R. China

School of Stomatology, Guangdong Province, Jinan University, Guangzhou, P. R. China

Contribution: Methodology, Software, Writing - review & editing

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Yang Liu

Yang Liu

Department of Oral Medicine, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, P. R. China

Contribution: Resources, Visualization

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Hua Zhang

Hua Zhang

Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing, P. R. China

Contribution: Methodology

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Hong Hua

Corresponding Author

Hong Hua

Department of Oral Medicine, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, P. R. China

Correspondence

Hong Hua, Department of Oral Medicine, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, No. 22 Zhongguancun South Avenue, Beijing 100081, P. R. China.

Email: [email protected]

Contribution: ​Investigation, Project administration, Validation

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First published: 29 April 2020
Citations: 13

Jin Li and Yang Liu contributed equally to this work.

Abstract

Objectives

This study aimed to examine the association between hyperglycemia and the malignant transformation of oral leukoplakia (OLK).

Patients and Methods

This retrospective case–control study involved 133 patients with the malignant transformation of OLK into oral squamous cell carcinoma (case group) and 266 patients with untransformed OLK (control group). The clinical history and follow-up data included age, gender, lesion size and location, and fasting plasma glucose. Logistic regression analysis, Kaplan–Meier survival analysis, and univariate and multivariate Cox regression analyses were used to assess the effects of risk factors on the malignant transformation of OLK.

Results

Hyperglycemia (adjusted hazard ratio [AHR] = 4.7, p = .001), non-homogenous OLK (AHR = 3.0, p < .001), location of the lesion on the ventral surface of the tongue or floor of the mouth (AHR = 3.6, p < .001), and epithelial dysplasia (AHR = 2.8, p = .005) had significant effects on the malignant transformation of OLK.

Conclusion

Hyperglycemia, non-homogenous OLK, location of the lesion on the ventral surface of the tongue or floor of the mouth, and epithelial dysplasia might be associated with malignant transformation of OLK.

CONFLICTS OF INTEREST

None to declare.

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