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Variability in asthma severity in pediatric subjects with asthma previously receiving short-acting beta2-agonists

Bradley E Chipps1, Joseph D Spahn, Christine A Sorkness

  • 1Capital Allergy and Respiratory Disease Center, Sacramento, California 95819, and University of Wisconsin, Madison, Wisconsin, USA. bchipps@capitalallergy.com

The Journal of Pediatrics
|May 2, 2006
PubMed

Insights

Pediatric asthma severity fluctuates, with many children frequently changing categories. Point-in-time assessments of lung function or symptoms may underestimate disease severity in children with asthma.

Area of Science:

  • Pediatric Pulmonology
  • Asthma Research
  • Clinical Trials

Background:

  • Asthma is a chronic respiratory condition affecting children.
  • Accurate assessment of asthma severity is crucial for effective management.
  • Previous studies often relied on discrete measures for categorization.

Purpose of the Study:

  • To analyze asthma severity fluctuations in pediatric subjects over 12 weeks.
  • To evaluate the reliability of single-point assessments for determining pediatric asthma severity.
  • To identify challenges in classifying asthma severity in young patients.

Main Methods:

  • Analysis of 5 double-blinded, randomized, 12-week asthma trials.
  • Inclusion of 276 pediatric subjects (4-11 years) with moderate/severe asthma.
  • Categorization of asthma severity based on symptoms, albuterol use, and peak expiratory flow.

Main Results:

  • Pediatric subjects spent the majority of weeks (55%) in the moderate/severe asthma category.
  • Significant variability was observed in asthma severity classifications across different metrics.
  • >35% of subjects showed changes of >=15 in asthma severity based on peak expiratory flow.

Conclusions:

  • Pediatric asthma is characterized by fluctuating symptomatology and severity.
  • Discrete, point-in-time assessments are often insufficient for accurate severity determination in children.
  • Underestimation of disease severity may occur due to limitations in current assessment methods.
Abstract

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