# Birth Order Differences in First-Year Neurodevelopment

## TL;DR

This study explores if firstborn and second-born children show differences in brain development during their first year of life.

## Contribution

The study provides empirical evidence on birth order effects on early neurodevelopment.

## Key findings

- Firstborn children showed slightly higher neurodevelopmental scores compared to second-born children.
- The differences were most noticeable in motor and social development domains.
- Results suggest potential environmental or parental factors influencing early development.

## Abstract

This cohort study examines whether firstborn and second-born children differ in neurodevelopmental outcomes during infancy.