Fetal growth rather than prematurity determines lung function in children with asthma

Area of Science:

• Pediatric Pulmonology
• Asthma Research
• Neonatal Health

Background:

• Preterm birth and fetal growth issues are linked to reduced childhood lung function and asthma.
• The specific impact of prematurity versus fetal growth on lung function in children with established asthma is unclear.

Purpose of the Study:

• To determine if prematurity or fetal growth significantly influences lung function or asthma symptoms in children with stable asthma.

Main Methods:

• A cohort of 566 children (5-18 years) with stable asthma was analyzed.
• Lung function (FEV1, FVC, FEF25-75%) and asthma control (ACT) were assessed.
• Comparisons were made based on preterm birth history and birth weight for gestational age (BW/GA).

Main Results:

• No significant differences in lung function or asthma control were found between preterm and term-born children.
• Birth weight for gestational age (BW/GA), but not prematurity, significantly affected pre- and post-bronchodilator lung function (FEV1, FVC, FEF25-75%).
• Regression analysis confirmed BW/GA as a key determinant of lung function in this cohort.

Conclusions:

• Fetal growth, indicated by birth weight for gestational age, plays a more significant role than prematurity in determining lung function among children with stable asthma.
• These findings suggest focusing on fetal growth parameters may be crucial for managing pediatric asthma.