Trajectories of lung function during childhood.

Area of Science:

• Pediatric Pulmonology
• Respiratory Medicine
• Developmental Pediatrics

Background:

• Childhood lung function development is crucial for understanding lifelong respiratory disease.
• Longitudinal data reveals critical patterns in lung function trajectories during childhood.

Purpose of the Study:

• To investigate longitudinal lung function changes in children.
• To identify factors associated with lung function decline in early life.

Main Methods:

• A population-based birth cohort study assessed specific airway resistance (sRaw) from ages 3 to 11.
• Children were phenotyped for wheezing and atopy using questionnaires, skin tests, and IgE levels.
• Longitudinal linear mixed models analyzed predictors of sRaw changes over time.

Main Results:

• Boys exhibited higher sRaw and a faster rate of increase compared to girls.
• Persistent wheeze and multiple early atopy were linked to accelerated sRaw deterioration.
• Increased asthma exacerbations correlated with progressively poorer lung function.

Conclusions:

• Persistent wheeze, frequent asthma exacerbations, and multiple early atopy are associated with diminished and declining lung function in children.
• These effects are more pronounced in boys, indicating sex-specific risks.
• Findings underscore the importance of early identification and intervention for respiratory health in children.