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. 2019 Sep 5;8(9):1387. doi: 10.3390/jcm8091387

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Association of delivered calories/resting energy expenditure (REE) percent by indirect calorimetry (IC) with 60-day mortality in different models: the authors recalculated their original 2016 data to integrate the fact that energy delivery increased progressively during the initial 2–3 days, reducing the mean value in stays <5 days. The lowest ICU mortality was observed when percent of delivered calories by REE obtained by IC was 80% (excluding first two feeding days) and 75% (with >10 evaluable nutrition days) (p < 0.05). On the contrary, increments of the ratio above that point—specifically >110%—were associated with increasing mortality (p < 0.05). Reproduced with permission (http://creativecommons.org/licenses/by/4.0/) [17].