Monday, January 25, 2010

Study: Link between obesity and form of kidney cancer

A new study conducted by researchers at the Memorial Sloan-Kettering Cancer Center in Manhattan has found that obesity increases a person’s risk of developing renal cell cancer (RCC), the most common type of kidney cancer.


For the study, which was published in BJUI , the research team looked at 1,640 patients with kidney tumors with an average age of 62. They found that the risk of developing a clear-cell RCC, the most common form of renal cell cancer, was 48 percent higher for obese patients than those who were not obese (body-mass index of less than 30). Researchers also found that for every additional BMI point a patient had, their risk of developing RCC grew by 4 percent.


Sixty-seven percent of obese patients with malignant tumors had clear-cell RCC malignant tumors, while about 57 percent of patients who were not obese with malignant tumors experienced clear-cell RCC malignant tumors.


Researchers concluded that a person’s BMI is an independent clear-cell RCC predictor, with the risk of developing clear-cell RCC increasing as BMI increased. Other independent predictors of this form of kidney cancer were tumor size and gender, with men being at greater risk than women.


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