Related Experiment Video
Updated: Mar 2, 2026

Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale
Published on: August 25, 2014
Trajectories of Externalizing and Internalizing Behaviors in Preterm Children Admitted to a Neonatal Intensive Care
Emily D Gerstein1, Ashley C Woodman2, Cynthia Burnson3
1University of Missouri-St. Louis, St. Louis, MO; University of Wisconsin-Madison, Madison, WI.
Insights
Preterm children exhibit three distinct behavior problem trajectories. Early intervention is crucial as child dysregulation, maternal depression, and socioeconomic factors predict more severe issues.
Area of Science:
- Developmental Psychology
- Pediatric Health
- Behavioral Science
Background:
- Preterm birth is associated with an increased risk of behavioral problems.
- Understanding the developmental trajectories of these problems is crucial for early intervention.
- Predictors of behavioral issues in preterm children require further investigation.
Purpose of the Study:
- To identify distinct developmental trajectories of internalizing and externalizing behavior problems in preterm children from 16 months to 6 years.
- To examine predictors of these behavior trajectories, including gestational age, child dysregulation, maternal depression, socioeconomic status, and parenting.
Main Methods:
- A longitudinal study followed 148 preterm children and their mothers from NICU discharge to age 6.
- Behavioral trajectories were analyzed using semiparametric group-based methods.
- Multinomial logistic regression identified significant risk factors for behavior problem trajectories.
Main Results:
- Three distinct trajectories for internalizing and externalizing behaviors were identified in preterm children.
- Behavior problems peaked between 24-36 months for higher-risk groups, then stabilized or declined.
- Maternal depression, child dysregulation, lower gestational age, and socioeconomic challenges predicted less optimal trajectories.
Conclusions:
- Preterm children follow one of three distinct developmental behavior trajectories.
- Severe behavior problems emerge early and are linked to child dysregulation, maternal depression, and socioeconomic status.
- Findings support targeted screening and monitoring for high-risk preterm populations.
Objective:
To examine the trajectories of internalizing and externalizing behavior problems of preterm children between 16 months and 6 years of age and predictors of trajectories, including gestational age, child dysregulation, maternal depression, socioeconomic status, and parenting.
Study Design:
This longitudinal study followed 148 children and their mothers from neonatal intensive care unit discharge until 6 years of age. Gestational ages ranged from 23 to 36 weeks. The study included assessment of maternal-reported behavior problems, maternal depression, neonatal and socioeconomic characteristics, and observations of dysregulated behavior and parenting. Trajectories were identified with a semiparametric group-based analytic method, and multinomial logistic regression was used to identify significant risk factors.
Results:
Three distinct trajectories for preterm children were found for both internalizing and externalizing behavior problems. For the 2 groups with greater behavior problems (groups 1 and 2), trajectories reached their peak between 24 and 36 months of age, then leveled off or decreased. Group 3 showed a stable low level of externalizing behaviors, and a low, but slightly increasing level of internalizing behaviors. Maternal depression, child dysregulation, gestational age, and socioeconomic challenges were identified as risk factors that predicted less optimal behavior problem trajectories.
Conclusions:
Children born prematurely followed 1 of 3 distinct developmental trajectories for both internalizing and externalizing behavior problems. The most severe behavior problems started early in development and were associated with increased child dysregulation, maternal depression, and lower socioeconomic status. These findings have implications for screening and monitoring preterm children.
Related Concept Videos
Socioemotional Development during Infancy
Primary Temperament Types
Attachment
Relationship with Parents: Attachment
Attention-Deficit/Hyperactivity Disorder
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
Conduct Disorder

