Differentiated associations of inflammatory indices with laboratory-defined organ injury/involvement and hospitalization length in pediatric respiratory tract infections - Report - MDSpire

Differentiated associations of inflammatory indices with laboratory-defined organ injury/involvement and hospitalization length in pediatric respiratory tract infections

  • By

  • Jing Wang

  • Ruotong Dong

  • Song Mao

  • July 16, 2026

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Clinical Report: Inflammatory Markers and Organ Damage in Pediatric RTIs

Overview

This study investigates the associations between inflammatory indices and laboratory-defined organ injury as well as hospitalization duration in children with respiratory tract infections (RTIs).

Background

Respiratory tract infections are prevalent in children and can lead to serious complications, including organ injuries. Identifying children at risk for organ damage or prolonged hospitalization is crucial.

Data Highlights

Inflammatory IndexAssociated Condition
Lower Neutrophils, CRP, SII, NLR, NPR, CLRCardiac Injury
Higher Lymphocytes, Lower Neutrophils, Platelets, CRP, SII, NLR, PLR, NPR, CLRLiver Injury
Higher WBCs, Neutrophils, CRP, SII, NLR, PLR, CLR, Lower LymphocytesKidney Involvement
Higher WBCs, Lymphocytes, CRP, NPR, CLR, Lower Platelets and HbLonger Hospitalization

Key Findings

  • Lower inflammatory indices are linked to cardiac injury in pediatric RTIs.
  • Higher lymphocyte levels correlate with liver injury.
  • Kidney involvement is associated with higher levels of WBCs and other inflammatory indices.
  • Composite indices like NLR, SII, and CLR show discriminative ability for organ injuries.
  • Longer hospitalization is associated with higher levels of certain inflammatory markers and lower levels of platelets and hemoglobin.

Clinical Implications

Inflammatory indices derived from routine blood tests can provide insights into the risk of organ injury and hospitalization duration in children with RTIs.

Conclusion

The study highlights the associations of inflammatory indices with organ injury and hospitalization in pediatric RTIs.

Related Resources & Content

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  2. Infection — Assessment of TRAIL, IP-10, and CRP Levels in Pediatric Patients with Suspected COVID-19 and the Influence of a Computational Signature on Clinical Decision-Making: A Prospective Cohort Investigation
  3. Frontiers in Pediatrics — Low Levels of the Protein TRAIL are Associated with Illness Severity in Children with Suspected Infection
  4. Clinical Practice Guideline by the Infectious Diseases Society of America and the Pediatric Infectious Diseases Society: 2026 Guideline Update on The Management of Community-Acquired Pneumonia in Infants and Children Older than 3 Months of Age | Clinical Infectious Diseases | Oxford Academic
  5. Open Forum Infectious Diseases — Impact of Fine Particulate Matter (PM2.5) on the Severity of Acute Respiratory Infections in Young Children Across Major US Cities: A Claims-Based Cohort Analysis
  6. Clinical Practice Guideline by the Infectious Diseases Society of America and the Pediatric Infectious Diseases Society: 2026 Guideline Update on The Management of Community-Acquired Pneumonia in Infants and Children Older than 3 Months of Age | Clinical Infectious Diseases | Oxford Academic
  7. Identifying the thresholds of C-reactive protein, procalcitonin, and interleukin-6 among children ≤36 months' old with fever without source at risk of serious bacterial infections: a systematic review and meta-analysis - PubMed
  8. Pathogen distribution and liver injury severity in children with community-acquired pneumonia complicated by liver injury in Suzhou, China
  9. Effectiveness of biomarker-guided duration of antibiotic treatment in children hospitalised with confirmed or suspected bacterial infection: the BATCH RCT - PubMed

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