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Table 1 Definition of hypothetical protein diets. Number of days with a defined level of medical nutrition therapy starts with day 1 after ICU admission. On days not specified, protein intake was identical with that of the comparison diet

From: Protein intake and outcome of critically ill patients: analysis of a large international database using piece-wise exponential additive mixed models

Diet Definition
Exclusively low protein diet < 0.8 g protein/kg per day (level I, median 0.49 g/kg day) on days on diet #1 to #11
Late standard protein diet 0.8–1.2 g protein/kg per day (level II, median 0.99 g/kg day) on days on diet #5 to #11
Early standard protein diet 0.8–1.2 g protein/kg per day on days on diet #1 to #11
Late high protein diet > 1.2 g protein/kg per day (level III, median 1.41 g/kg day) on days on diet #5 to #11
Early high protein diet > 1.2 g protein/kg per day on days on diet #1 to #11