Ki

PermiT

2015 Nutrition
? ICUs
894 patients

Permissive underfeeding (40-60 vs 70-100%) in crit ill adults (non-prot calories) - 90d mort

Clinical Question

In critically ill adults, does restriction of non-protein calories
(permissive underfeeding) compared to standard feeding reduce mortality at
90 days?

Critical Appraisal

Key findings

Safe. No survival benefit. Small benefit poss but study too small

Critique

Lack of blinding. Only powered to detect a moderate survival benefit

Population
Adult ICU Patients
Population Details
Not recorded
Intervention Arms

Permissive underfeeding
Caloric goal 40-60% of requirement, maintain protein requirement

Control Arms

Standard feed

Primary Outcome
90 day mortality
Secondary Outcomes
No difference in mortality , No difference in any secondary outcome
P Value
0.58

Outcome Results

Not recorded