Birth and developmental correlates of birth weight in a sample of children with potential sensory processing disorder

Area of Science:

• Pediatric Development
• Neonatal Health
• Infant Milestone Achievement

Background:

• Existing research often focuses on high-risk infants with specific birth weight and gestational age classifications.
• Limited studies explore the broad relationship between various birth weight and gestational age categories and developmental outcomes.

Purpose of the Study:

• To investigate the relationship between birth weight, birth history, and developmental milestone achievement across diverse infant classifications.
• To analyze how different birth weight and gestational age categories impact infant development.

Main Methods:

• Analysis of a convenience sample of 663 anonymized developmental histories from a pediatric outpatient occupational therapy clinic.
• Categorization of infants into three birth weight groups: low birth weight (LBW), normal birth weight (NBW), and high birth weight (HBW).
• Classification of infants into three gestational age categories relative to birth weight: small for gestational age (SGA), appropriate for gestational age (AGA), and large for gestational age (LGA).

Main Results:

• Infants classified as NBW, AGA, and SGA with birth complications had lower birth weights compared to those without complications.
• Larger birth weights were associated with earlier independent sitting in HBW infants, earlier solid food introduction in NBW infants, and earlier walking in LBW and NBW infants.
• Higher birth weights correlated with earlier rolling in LGA infants, earlier walking and speech in AGA infants, and earlier independent sitting in SGA and AGA infants.

Conclusions:

• Birth weight and gestational age categories offer distinct perspectives on infant birth history and developmental milestone achievement.
• These classifications are valuable for understanding variations in infant development and identifying potential areas for early intervention.