Predictive equations commonly used in the clinic underestimate resting energy expenditure compared with whole-room indirect calorimetry in colorectal cancer survivors

Most predictive equations tended to underestimate REE in CRC survivors compared with REEWRIC. The Harris-Benedict, Henry and FAO/WHO/UNUBIA equations showed both best accuracy and agreement with WRIC. They were still inaccurate, with individual variability for a relevant part of the sample. Future studies need to develop improved predictive equations for CRC survivors. This study was registered at clinicaltrials.gov as NCT01570010 (https://clinicaltrials.gov/study/NCT01570010?locStr=Norway&country=Norway&cond).