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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.
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.
What Is Already Known About This Topic?:
Severe respiratory infections in early life, particularly lower respiratory tract infections, such as bronchiolitis and pneumonia, may increase the risk of subsequent wheezing and asthma.
What Is Added By This Report?:
Among the 22,460 children hospitalized for acute respiratory infections in Yichang, 2017-2024, a total of 1,463 subsequently developed wheezing/asthma. Bronchiolitis and pneumonia were associated with the highest subsequent wheezing/asthma risk relative to upper respiratory tract infection or influenza, with excess risk concentrated within the first 2 years after hospitalization; only bronchiolitis remained significantly associated with subsequent wheezing/asthma during the 2 to <4 years period.
What Are The Implications For Public Health Practice?:
Children hospitalized with bronchiolitis or pneumonia should undergo systematic post-discharge follow-up and early asthma screening during the first two years after discharge. Extended follow-up for four years after discharge may be warranted for children hospitalized with bronchiolitis.
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