Influence of medical history on assessment of at-risk infants

Area of Science:

• Developmental Pediatrics
• Physical Therapy
• Infant Health

Background:

• Accurate assessment of at-risk infants is crucial for early intervention.
• Clinicians' knowledge of patient history can influence diagnostic interpretations.
• The Movement Assessment of Infants (MAI) is a standardized tool for evaluating infant motor development.

Purpose of the Study:

• To investigate how knowledge of an infant's medical history affects the assessment of at-risk infants.
• To determine if providing inaccurate medical history information influences the interpretation of infant assessments.
• To examine the potential for false positive results in infant assessments due to biased historical knowledge.

Main Methods:

• Two at-risk infants, one with a high-risk and one with a low-risk medical history, were assessed using the Movement Assessment of Infants (MAI).
• 41 physical therapists were randomly assigned to view videotaped assessments.
• Participants were divided into four groups, each receiving different information about the infants' medical histories (actual or altered risk levels).

Main Results:

• The clinical significance of the difference in total risk scores was greater when assessing the low-risk infant.
• When the low-risk infant was presented with a high-risk history, the mean total risk score was higher, indicating potential false positive findings.
• Knowledge of the infant's medical history significantly influenced the physical therapists' assessments.

Conclusions:

• Providing inaccurate high-risk medical history information for a low-risk infant can lead to false positive assessment results.
• False positive findings may negatively impact parental perceptions and interactions with their infants.
• Altered perceptions and interactions can subsequently influence the infant's developmental trajectory.