Longitudinal predictors for internalizing and externalizing symptomatology at age 4: KUNO-Kids cohort study

Area of Science:

• Developmental Psychology
• Child Psychiatry
• Public Health

Background:

• Early-life risk factors are linked to toddler psychological problems.
• Few studies examine these factors longitudinally with both parents.
• This study investigates multiple risk factors' impact on child symptomatology.

Purpose of the Study:

• To examine the longitudinal impact of early environmental, parental, and child-specific risk factors.
• To assess their influence on children's internalizing and externalizing symptomatology at age 4.
• To identify key predictors for targeted interventions.

Main Methods:

• Longitudinal study of 560 families from birth to age 4.
• Data collected via questionnaires at multiple time points.
• Linear mixed effect models and multivariable linear regressions used for analysis.

Main Results:

• Key risk factors identified: lack of social support, lower parental education, male sex, poor parental mental health, parenting stress, parental sleep difficulties, low child physical health, reduced child sleep quality, and temperament.
• Parental factors, child health, and social support were significant predictors.

Conclusions:

• Child temperament, parental mental health and stress, and family social support are crucial.
• Interventions should focus on improving parental mental health, reducing stress, and strengthening social support networks.
• Mitigating these early-life risks can prevent psychological problems in children.