Low Weight Linked to Severe Pediatric COVID
Brazilian pediatric intensive care unit study found underweight status was associated with respiratory complications, longer hospitalization, and mortality among critically ill patients with COVID-19.
By
Andrea Surnit
June 30, 2026
Clinical Scorecard: Low Weight Linked to Severe Pediatric COVID
At a Glance
Category Detail
Condition Pediatric COVID-19 Key Mechanisms Nutritional status as a predictor of clinical severity Target Population Children aged 1 month to 18 years Care Setting Pediatric intensive care units (PICUs)
Key Highlights
Underweight children had higher risks of acute respiratory distress syndrome (ARDS) and invasive mechanical ventilation (IMV). 13% of the cohort was underweight, with 46% aged 24 months or younger. Underweight status associated with an 83% higher risk of IMV and a 47% higher risk of prolonged hospitalization. Mortality risk was significantly higher in underweight patients, with a relative risk of 8.20. Guideline-Based Recommendations
Diagnosis
COVID-19 diagnosis confirmed by RT-PCR or blood serology. Management
Incorporate nutritional assessment in standard care for pediatric COVID-19 patients. Monitoring & Follow-up
Monitor for respiratory distress and hospitalization duration in underweight patients. Risks
Underweight status linked to increased risk of severe outcomes in pediatric COVID-19. Patient & Prescribing Data
432 pediatric patients admitted to PICUs in Brazil.
Clinical Best Practices
Assess nutritional status using WHO growth criteria. Consider comorbidities and viral co-detections in management plans. Related Resources & Content
