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The influence of lower respiratory illness on childhood asthma: defining risk and susceptibility
Insights
Lower respiratory illness in early life may increase childhood asthma risk by affecting lung development. Factors like socioeconomic status and race also influence this relationship, impacting susceptible children.
Area of Science:
- Pediatric respiratory medicine
- Epidemiology of childhood asthma
Background:
- Lower respiratory illness (LRI) is a potential risk factor for childhood asthma development.
- LRIs may alter lung function trajectories, contributing to asthma symptoms in predisposed children.
Purpose of the Study:
- To review the role of lower respiratory illness as a risk factor for childhood asthma.
- To discuss definitions, susceptible populations, and the influence of socioeconomic and racial factors on the LRI-asthma link.
Main Methods:
- Literature review and synthesis of existing research on lower respiratory illness and childhood asthma.
- Analysis of factors influencing the relationship, including host susceptibility and social determinants.
Main Results:
- Lower respiratory illness can directly or indirectly impact lung growth and decline, potentially leading to asthma.
- Individual susceptibility, socioeconomic status, and race are significant moderators of the LRI-asthma relationship.
Conclusions:
- Early-life lower respiratory illness is a critical factor to consider in childhood asthma etiology.
- Understanding these relationships is vital for targeted prevention and intervention strategies in at-risk populations.
Abstract:
This article reviews the role of lower respiratory illness as a risk factor for the development of asthma in childhood. Lower respiratory illness may influence the natural course of lung-function growth and decline directly or indirectly promoting the development of asthma symptoms in susceptible individuals. The authors discuss the current definitions of lower respiratory illness and asthma and the characteristics of the individuals most prone to their effects. Last, they review how socioeconomic status and race affect the lower respiratory illness-asthma relationship.