Objective: Modified Nutrition Risk in Critically Patients is a classification scale that has been widely used all over the world recently to determine the level and degree of nutritional risk in individuals treated in intensive care units. It was analyzed whether the length of stay in the intensive care units as different in individuals classified according to the Modified Nutrition Risk in Critically score level.

Methods: In this retrospective study, which included 100 patients, the age and gender of the patients, the laboratory parameters at the time of first admission to the intensive care units, the prognostic indicators including the Acute Physiologic and Chronic Health Evaluation Score II, Sequential Organ Failure Assessment, and Modified Nutrition Risk in Critically scores calculated in the first day, the need for invasive mechanical ventilation, and if ventilated duration of invasive mechanical ventilation, intensive care units length of stay, comorbid conditions, and death rate were recorded.

Results: Sixty (60%) patients were male. The median age was 66 (48-79) years. The patients with high Modified Nutrition Risk in Critically score were 26 (26%). Intensive care units length of stay was 19 (10-38) days. Acute Physiologic and Chronic Health Evaluation II score was 18 (11-24). Mortality rate was 39%. High Modified Nutrition Risk in Critically score group had higher Acute Physiologic and Chronic Health Evaluation II score, the necessity of invasive mechanical ventilation, length of stay in the critical care unit, and death rate as compared to low Modified Nutrition Risk in Critically score group (for all P > .05) and need of invasive mechanical ventilation and Modified Nutrition Risk in Critically score ≥ 5 were shown to have a remarkable influence on length of stay in the critical care unit.

Conclusion: The need for invasive mechanical ventilation and Modified Nutrition Risk in Critically score ≥ 5 were shown to have remarkable influence on intensive care units length of stay.

Keywords: mNUTRIC score, intensive care unit, length of stay