KRAS and colorectal carcinoma: High weight, bodyfat percentage, hip, waist, WHR and BMI were associated with an increased risk of KRAS-mutated CRC (ptrend = 0.006, ptrend = 0.007, ptrend = 0.004, ptrend = 0.004, ptrend = 0.041, ptrend = <0.001), and BMI was also associated with an increased risk of KRAS wild type tumours (ptrend = 0.046).