Longitudinal Study of Subsequent Wheezing/Asthma Risk Among Children Hospitalized for Acute Respiratory Infections -

Qiuyan Qin1, Qiqi Wang1, Siyu Wang1

  • 1Office of Epidemiology (Technical Guidance Office for Patriotic Health Work), Chinese Center for Disease Control and Prevention & Chinese Academy of Preventive Medicine, Beijing, China.

China CDC Weekly
|June 5, 2026
PubMed

Insights

Severe respiratory infections like bronchiolitis and pneumonia in children can lead to later wheezing and asthma. Early follow-up and screening after hospitalization are crucial for managing this risk.

Area of Science:

  • Pediatric Respiratory Medicine
  • Epidemiology
  • Public Health

Background:

  • Severe respiratory infections in early childhood, especially lower respiratory tract infections such as bronchiolitis and pneumonia, are linked to an increased risk of developing wheezing and asthma later in life.
  • Understanding the long-term respiratory health outcomes following acute respiratory infections is critical for effective public health strategies.

Purpose of the Study:

  • To investigate the association between childhood acute respiratory infections (ARIs) and the subsequent development of wheezing and asthma.
  • To identify specific respiratory infections and timeframes associated with the highest risk of developing asthma post-hospitalization.

Main Methods:

  • Retrospective cohort study analyzing data from 22,460 children hospitalized for ARIs in Yichang between 2017 and 2024.
  • Statistical analysis to determine the risk of subsequent wheezing/asthma relative to different types of ARIs and over varying post-hospitalization periods.

Main Results:

  • A total of 1,463 children (6.5%) developed wheezing or asthma after hospitalization for ARIs.
  • Bronchiolitis and pneumonia showed the highest risk for subsequent wheezing/asthma compared to upper respiratory tract infections or influenza.
  • The excess risk was most pronounced within the first two years post-hospitalization, with bronchiolitis remaining a significant risk factor up to four years.

Conclusions:

  • Children hospitalized with bronchiolitis or pneumonia require systematic post-discharge follow-up and early asthma screening, particularly within the first two years.
  • Extended follow-up for up to four years may be beneficial for children hospitalized with bronchiolitis due to its persistent association with later asthma development.
Abstract

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