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Published on: December 19, 2017
Reducing malnutrition in critically ill pediatric patients.
Caroline Abud Drumond Costa1, Pedro Celiny Ramos Garcia1,2, Daiane Drescher Cabral1
1Programa de Pós-Graduação em Pediatria e Saúde da Criança, Pontifícia Universidade Católica do Rio Grande do Sul - Porto Alegre (RS), Brasil.
Malnutrition prevalence significantly decreased in a pediatric intensive care unit over time. This improvement in pediatric critical care nutrition reduced negative patient outcomes, aligning with global child nutrition trends.
Area of Science:
- Pediatric critical care medicine
- Nutritional epidemiology
- Global child health
Background:
- Malnutrition is a significant concern in pediatric intensive care units (PICUs).
- Understanding trends in pediatric malnutrition is crucial for improving patient outcomes.
- Previous data on nutritional status in critically ill children is limited.
Purpose of the Study:
- To compare the prevalence of malnutrition in a PICU across two distinct time periods.
- To assess the association between malnutrition and clinical outcomes (mortality, length of stay) in critically ill children.
- To evaluate changes in the nutritional profile of pediatric patients over time.
Main Methods:
- Retrospective cross-sectional study design.
- Inclusion of patients admitted to a university hospital's PICU during two one-year periods, separated by four years.
- Nutritional status assessed using body mass index-for-age, based on admission weight and height, classified per World Health Organization guidelines.
Main Results:
- A total of 881 patients were analyzed (406 contemporary, 475 historical).
- A statistically significant reduction in malnutrition was observed in the contemporary sample (p = 0.03).
- In the historical sample, malnutrition was linked to increased mortality and longer hospital stays; this association was not found in the contemporary sample.
Conclusions:
- Significant reduction in malnutrition prevalence within the studied PICU between the two time periods.
- The observed shift in nutritional status among critically ill children supports global trends in pediatric and adolescent nutrition.
- Improved nutritional care in PICUs may contribute to better patient outcomes.
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Critical Region, Critical Values and Significance Level
In hypothesis testing, a sample statistic is converted to a test statistic using z, t, or chi-square distribution. A critical region is an area under the curve in probability distributions demarcated by the critical value. When the test statistic falls in this region, it suggests that the null hypothesis must be rejected. As this region contains all those values of the...
Critical Values

