Early childhood malnutrition trajectory and lung function at preadolescence

Area of Science:

• Pediatrics
• Public Health
• Respiratory Medicine

Background:

• Chronic undernutrition, particularly stunting, is prevalent in Bangladesh.
• Limited data exists on the long-term impact of undernutrition trajectories on children's lung function.

Purpose of the Study:

• To investigate the association between early-childhood chronic undernutrition trajectories and lung function at preadolescence.
• To understand how different growth patterns influence respiratory health in children.

Main Methods:

• A 9-year follow-up of the Maternal and Infant Nutrition Interventions in Matlab cohort study.
• Lung function measured using spirometry in 517 children at age 9.
• Weight and height tracked at five intervals from birth to age 9.

Main Results:

• Over half of the children experienced stunting up to age 9.
• Persistent or intermittent stunting was associated with lower forced expiratory volume.
• Children with catch-up growth showed lung function comparable to normal-stature peers.

Conclusions:

• Catch-up growth in height during early childhood is positively associated with improved lung function at preadolescence.
• Interventions promoting catch-up growth may mitigate negative respiratory health consequences of early undernutrition.