Hyunju Park, Jung Heo, Hyun Jin Ryu, Min-Ji Kim, Young Lyun Oh, Tae Hyuk Kim, Sun Wook Kim, Jae Hoon Chung
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引用次数: 0
Abstract
Objective: Previous reports suggest that a high body mass index (BMI) increases the risk of thyroid carcinoma. However, it remains unclear whether a high BMI is associated with the risk of the BRAFV600E mutation. We aimed to assess whether a high BMI is associated with an increased risk of the BRAFV600E mutation.
Design and methods: We screened 6558 PTC patients who had undergone BRAFV600E mutation testing between January 2009 and December 2017. After exclusion, 6438 PTC patients were enrolled. We used logistic regression, and restricted cubic spline plots of the adjusted odds ratios (ORs) were illustrated to model the relationship between BMI and the BRAFV600E mutation.
Results: Of the 6438 patients, 5102 (79.2%) had the BRAFV600E mutation, and 4954 (76.9%) were female. The median BMI was 23.8 (21.6-26.2) kg/m2. The primary tumor size was ≤1 cm in 4226 patients (65.6%) and >1 cm in 2212 patients (34.4%). The BRAFV600E mutation was significantly associated with high BMI only in patients with a primary tumor size >1 cm (OR: 1.034; 95% CI: 1.003-1.065; P = 0.029), whereas no clear association was found in patients with a primary tumor size ≤1 cm (OR: 1.007; 95% CI: 0.984-1.030; P = 0.570). Gender was not a significant factor in either group.
Conclusions: Our study found that a higher BMI was positively associated with the BRAFV600E mutation in patients with a primary tumor size >1 cm. These results suggest that the association between BMI and the BRAFV600E mutation status differs depending on primary tumor size.
Significance statement: Obesity has been suggested as a potential risk factor for thyroid carcinoma. The aim of this study was to assess the association between BMI and the BRAFV600E mutation. In this study, the BRAFV600E mutation was significantly associated with a high BMI only in a primary tumor size >1 cm (OR: 1.034; P = 0.029). No clear association was found in patients with a primary tumor size ≤1 cm (OR: 1.007; P = 0.570). The association between BMI and the BRAFV600E mutation status differs depending on the primary tumor size.
期刊介绍:
The ''European Thyroid Journal'' publishes papers reporting original research in basic, translational and clinical thyroidology. Original contributions cover all aspects of the field, from molecular and cellular biology to immunology and biochemistry, from physiology to pathology, and from pediatric to adult thyroid diseases with a special focus on thyroid cancer. Readers also benefit from reviews by noted experts, which highlight especially active areas of current research. The journal will further publish formal guidelines in the field, produced and endorsed by the European Thyroid Association.