Construct validity of the Infant Motor Profile: relation with prenatal, perinatal, and neonatal risk factors

Kirsten R Heineman1, Sacha La Bastide-Van Gemert, Vaclav Fidler

  • 1Department of Paediatrics, Institute of Developmental Neurology, University Medical Center Groningen, Groningen, the Netherlands.

Insights

The Infant Motor Profile (IMP) demonstrates construct validity, as its scores correlate with key factors influencing infant neuromotor development, including gestational age and brain health.

Area of Science:

  • Pediatrics
  • Developmental Neuroscience
  • Motor Development

Background:

  • The Infant Motor Profile (IMP) is a tool for assessing infant motor behavior between 3 and 18 months.
  • Understanding the factors influencing infant motor development is crucial for early identification of potential issues.

Purpose of the Study:

  • To investigate the construct validity of the Infant Motor Profile (IMP).
  • To examine the relationship between IMP scores and prenatal, perinatal, and neonatal variables.
  • To assess the impact of brain pathology, identified via neonatal ultrasound, on IMP scores.

Main Methods:

  • A longitudinal prospective study involving 30 term and 59 preterm infants.
  • IMP assessments were conducted at corrected ages of 4, 6, 10, 12, and 18 months.
  • Data on socio-economic status, perinatal factors, and neonatal brain imaging (for preterm infants) were collected and analyzed using mixed-effects models.

Main Results:

  • Gestational age, socio-economic status, and 5-minute Apgar scores significantly influenced IMP scores in the overall infant group.
  • In preterm infants, IMP scores were significantly associated with the presence of brain lesions on neonatal ultrasound and socio-economic status.

Conclusions:

  • The study supports the construct validity of the Infant Motor Profile (IMP).
  • IMP scores are demonstrably linked to crucial determinants of neuromotor function, validating its use in clinical and research settings.
Abstract

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