Sex influences on lung function and medication in childhood asthma

Jenny Hallberg1, Martin Anderson, Magnus Wickman

  • 1Division of Occupational Medicine, Department of Public Health Sciences, Karolinska Institute, Stockholm, Sweden. jenny.hallberg@phs.ki.se

Insights

Asthma impacts lung function in children, with girls experiencing greater effects on peak expiratory flow (PEF) and receiving less treatment than boys. This highlights potential sex-based disparities in pediatric asthma management.

Area of Science:

  • Pediatric Pulmonology
  • Environmental Epidemiology
  • Child Health Research

Background:

  • Asthma is a common chronic respiratory disease in children.
  • Understanding sex-based differences in asthma prevalence, diagnosis, and treatment is crucial for effective management.
  • The BAMSE birth cohort provides a valuable resource for studying early-life environmental influences on asthma.

Purpose of the Study:

  • To investigate sex differences in asthma prevalence, diagnosis, and treatment among 4-year-old children.
  • To assess the influence of asthma severity on lung function (PEF) in relation to sex.
  • To analyze treatment patterns for pediatric asthma based on sex and symptom frequency.

Main Methods:

  • Utilized data from the BAMSE population-based birth cohort study.
  • Collected questionnaire data on asthma symptoms, diagnosis, and medication at 4-year follow-up.
  • Performed clinical testing, including peak expiratory flow (PEF) measurements, on a subset of children.

Main Results:

  • Children with asthma exhibited lower PEF compared to healthy children, with a more pronounced effect in persistent asthma for both sexes and transient asthma for girls.
  • Doctor's diagnosis of asthma did not differ significantly between boys and girls.
  • More boys than girls received inhaled corticosteroids, even when symptom frequency was considered.

Conclusions:

  • Girls aged 4 years show a greater impact of asthma symptoms on PEF compared to boys.
  • Girls with asthma symptoms are less frequently treated with inhaled corticosteroids than boys.
  • Findings suggest potential sex-based disparities in pediatric asthma management and its impact on lung function.
Abstract

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