The Medical News

The Medical News

Bariatric surgery is associated with a distinct reduction in skin-cancer risk, a study shows. This finding can be described as a key piece of evidence that substantiates the connection between weight loss and malignant skin cancer. "This provides further evidence for a connection between obesity and malignant skin cancer, and for the view that we should regard obesity as a risk factor for these forms of cancer," says Magdalena Taube, the first author behind the study and a researcher in molecular and clinical medicine at Sahlgrenska Academy, University of Gothenburg, Sweden. That obesity is a risk factor for several types of cancer is well known. The same applies to the fact that people's risk level can be lowered by means of an intentional weight reduction. However, the evidence for a connection between obesity and weight loss on the one hand and, in particular, malignant skin cancer on the other has been limited to date. The current study, published in JAMA Dermatology , used data from what is known as the SOS (Swedish Obese Subjects) study, which is led and coordinated from the University of Gothenburg. Other data sources included the Swedish Cancer Register kept by the Swedish National Board of Health and Welfare. The researchers studied a group of 2,007 people who underwent bariatric surgery, and compared them with a control group of 2,040 individuals. The latter also had severe obesity but were not given bariatric surgery. Otherwise, in terms of gender, age, body composition, risk factors for cardiovascular disease, and psychosocial variables, the groups were comparable. Related Stories



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