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Published on: December 5, 2025

Hypoxemia in children with pneumonia and its clinical predictors

Sudha Basnet1, Ramesh Kant Adhikari, Chitra Kumar Gurung

  • 1Department of Pediatrics, Institute of Medicine, Kathmandu, Nepal. sudhab@healthnet.org.np

Indian Journal of Pediatrics
|September 29, 2006
PubMed

Insights

Hypoxemia affects 38.7% of children with pneumonia. Clinical signs like chest indrawing can predict low oxygen levels, especially in infants under one year old with acute respiratory infections.

Area of Science:

  • Pediatrics
  • Respiratory Medicine
  • Global Health

Background:

  • Pneumonia is a leading cause of childhood mortality globally.
  • Hypoxemia is a critical complication of severe pneumonia.
  • Accurate assessment of hypoxemia is vital for timely intervention.

Purpose of the Study:

  • To determine the prevalence of hypoxemia in children aged 2 months to 5 years diagnosed with pneumonia.
  • To identify clinical indicators that predict hypoxemia in this pediatric population.

Main Methods:

  • A study involving 150 children aged 2-60 months presenting with cough or difficulty breathing.
  • Hypoxemia defined as arterial oxygen saturation < 90% measured by pulse oximetry.
  • Classification of patients into cough/cold, pneumonia, severe pneumonia, and very severe pneumonia groups.

Main Results:

  • The prevalence of hypoxemia was 38.7% among children with pneumonia.
  • 100% of very severe pneumonia cases exhibited hypoxemia, compared to 80% of severe pneumonia and 17% of pneumonia.
  • Infants (<1 year) with acute respiratory illness had a significantly higher risk of hypoxemia (OR=2.21).
  • Clinical predictors included lethargy, grunting, nasal flaring, cyanosis, and difficulty feeding. Chest indrawing demonstrated the highest predictive value.

Conclusions:

  • The study validates the World Health Organization's pneumonia severity classification in identifying hypoxemia.
  • Age under one year is a significant risk factor for hypoxemia in children with acute respiratory infections.
  • Clinical assessment, particularly chest indrawing, can aid in identifying children with pneumonia at risk of hypoxemia.
Abstract

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