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A first-year follow-up of high-risk infants: formulating a cumulative risk index
Insights
Infants born with respiratory distress syndrome (RDS) showed developmental delays, while postmature infants experienced mental development delays. Early assessments effectively identified infants at ongoing risk.
Area of Science:
- Developmental Pediatrics
- Neonatal Medicine
- Child Psychology
Background:
- Infant development is influenced by perinatal factors.
- Understanding developmental trajectories for at-risk infants is crucial for early intervention.
- Distinguishing between preterm respiratory distress syndrome (RDS) and postmaturity syndrome impacts developmental outcomes.
Purpose of the Study:
- To compare developmental outcomes in preterm RDS, postmature, and normal infants.
- To identify early predictors of continuing developmental risk in these infant groups.
- To establish a cumulative risk index for tracking infant development.
Main Methods:
- Longitudinal developmental assessments at 4-month intervals during the first year of life.
- Inclusion of three groups: preterm RDS infants (n=46), postmature infants (n=46), and normal term infants (n=59).
- Utilized discriminant function analysis with multiple assessment tools (Parmelee, Brazelton, Denver, mother-infant interaction, Carey temperament, Bayley scales).
Main Results:
- Preterm RDS infants demonstrated persistent delays in both motor and mental development.
- Postmature infants exhibited significant delays specifically in mental development.
- Key predictors of ongoing risk included birth scores (Parmelee, Brazelton), 4-month ratings (Denver, mother-infant interaction, Carey temperament), and 8-month Bayley scores.
Conclusions:
- Infants with respiratory distress syndrome and postmaturity syndrome face distinct developmental challenges.
- A combination of early clinical, interactive, and standardized developmental assessments can accurately identify infants at continuing risk.
- A cumulative risk index provides a valuable tool for monitoring and managing developmental trajectories in at-risk infants.
Abstract:
Multiple developmental assessments were made at 4-month intervals over the first year of life for 2 groups of infants born at risk and 1 normal group. The groups included 46 preterm respiratory distress syndrome infants, 46 postterm postmaturity syndrome, and 59 term normal infants. The mothers were white, multiparous, middle-class, high school graduates averaging 25 years of age. Analyses of group differences revealed that the preterm respiratory distress syndrome (RDS) infants continued to exhibit delays in motor and mental development and the postmature infants in mental development. Discriminant function analyses suggesting that the most efficient predictors and accurate discriminators of continuing risk were as follows: the Parmelee obstetric and postnatal complications scores and the Brazelton interactive and motoric process scores at birth; the Denver rating, mother-infant interaction and Carey temperament ratings at 4 months; and the Bayley mental and motor scores at 8 months. On the basis of their weighted assessment scores, infants were assigned a cumulative risk index at each assessment period.