Clinical Scorecard: Validation of Pediatric Risk Scores for Pneumonia and Bronchiolitis in Predicting Mortality Among Hospitalized Children in Kenya: A Retrospective Cohort Analysis

At a Glance

Key Highlights

• Six pediatric ALRI risk scores (RISC [HIV-negative], mRISC, RISC-Malawi, PERCH, PREPARE, ReSVinet) were evaluated for mortality prediction.
• RISC-Malawi score using mid-upper arm circumference (MUAC) showed highest discrimination (AUROC 0.83) for in-hospital mortality.
• Modification of ReSVinet score to include nutritional status improved its predictive performance (AUROC from 0.72 to 0.79).

Guideline-Based Recommendations

Diagnosis

• Use WHO guidelines for diagnosis of pneumonia in children aged 2–59 months.
• Assess clinical signs such as cough, difficulty breathing, chest indrawing, oxygen saturation <90%, feeding ability, and consciousness level.

Management

• Hospitalize children with severe ALRIs based on clinical severity and risk stratification scores.
• Prioritize close monitoring and supportive care for children identified at high risk of mortality by validated risk scores.

Monitoring & Follow-up

• Monitor clinical status and outcomes in hospitalized children using validated risk scores to guide resource allocation.
• Evaluate nutritional status as part of risk assessment to improve mortality prediction.

Risks

• Children with severe ALRIs are at high risk of in-hospital mortality and long-term lung disease.
• Malnutrition significantly impacts mortality risk and should be incorporated into risk assessments.

Patient & Prescribing Data

Children aged 2–24 months hospitalized with severe ALRIs in Kenya

Risk scores can guide early identification of high-risk patients to optimize clinical management and resource use; RISC-Malawi (MUAC) score shows promise for implementation.

Clinical Best Practices

• Incorporate validated pediatric ALRI risk scores into clinical assessment to improve mortality prediction.
• Include nutritional status measures such as MUAC in risk stratification models.
• Use risk scores to prioritize care and allocate limited resources efficiently in LMIC hospital settings.
• Further research is needed to assess calibration, feasibility, and clinical utility of risk scores in diverse populations.

References

• World Health Organization Pneumonia Guidelines 2024
• RISC Score Development Study
• RISC-Malawi Score Validation
• ReSVinet Score Original Study
• Kenya Medical Research Institute-Wellcome Research Program