Birth Order Differences in First-Year Neurodevelopment

Key Points

• The study aims to investigate differences in neurodevelopmental outcomes between firstborn and second-born children during infancy.
• Cohort study design comparing firstborn and second-born children.
• Assessment of neurodevelopmental outcomes in infancy.
• Analysis of various growth metrics and milestones.
• Differential outcomes in neurodevelopmental metrics were observed between firstborn and second-born infants.
• Firstborn children showed distinct strengths in specific neurodevelopmental areas compared to second-born siblings.