The effect of bariatric surgery on breast cancer incidence and characteristics: A meta-analysis and systematic review - 16/09/21
Abstract |
Background |
Obesity is a major risk factor for breast cancer. This study examines whether bariatric surgery affects breast cancer incidence in women with obesity compared to BMI-matched controls.
Methods |
EMBASE, MEDLINE, Web of Science, and CINAHL were searched. Primary studies on female breast cancer incidence after bariatric surgery were eligible.
Results |
11 studies were included (n = 1,106,939). The rate of cancer diagnosis was lower in the surgical group (0.54%) compared to control (0.84%; risk ratio (RR) 0.50, 95%CI 0.37–0.67, I2 = 88%). The results were robust to sensitivity analyses for patient age and study size. Bariatric surgery was associated with increased risk of stage I cancer (RR 1.23, 95%CI 1.06–1.44) and reduced risk of stage III or IV cancer (RR 0.50, 95%CI 0.28–0.88). Hormone receptor characteristics were not affected.
Conclusions |
Bariatric surgery is associated with reduced incidence and earlier stage at diagnosis of breast cancer in women with obesity compared to BMI-matched controls.
Le texte complet de cet article est disponible en PDF.Graphical abstract |
Highlights |
• | Bariatric surgery in women with obesity may result in lower risk of breast cancer. |
• | Bariatric surgery in women with obesity does not appear to affect hormone receptors. |
• | Bariatric surgery in women with obesity may result in earlier stage at diagnosis. |
Keywords : Bariatric surgery, Breast cancer, Risk reduction, Obesity-related cancer
Plan
Vol 222 - N° 4
P. 715-722 - octobre 2021 Retour au numéro
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