Comparison of three indirect calorimetry devices and three methods of gas collection: A prospective observational study

Mean EE was similar between QuarkRMR® and DeltatracII® but not between CCMexpress®, in any mode of gas collection, and DeltatracII®. Bland & Altman test shows a large variability in EE differences with both devices compared to DeltatracII®, highlighting the need for refining their accuracy.