Body mass index at diagnosis, postdiagnosis change, and role of metabolic comorbidities in relation to survival in nonmetastatic renal cell carcinoma patients

Background

Obesity is a recognized risk factor for renal cell carcinoma (RCC) incidence, but higher body mass index (BMI) measured at diagnosis has been paradoxically associated with improved survival. This study investigated whether postdiagnosis changes in BMI and metabolic comorbidities combined with BMI at diagnosis are associated with survival.