# Association of night-waking and inattention/hyperactivity symptoms trajectories in preschool-aged children

## TL;DR

This study investigates the longitudinal relationship between night-waking and inattention/hyperactivity symptoms in preschool children, finding persistent behavioral and sleep difficulties with shared risk factors.

## Contribution

It identifies distinct trajectories of night-waking and inattention/hyperactivity and their association, highlighting the importance of assessing sleep in children with behavioral issues.

## Key findings

- 20% of children had common night-waking trajectory
- Children with common night-waking had higher risk of high inattention/hyperactivity
- Shared risk factors include parental education, child's gender, sleep duration, and care setting

## Abstract

Objective: To study the longitudinal associations between inattention/hyperactivity symptoms and night-waking in preschool-years, in light of their joint evolution.Study design: Within the French birth-cohort study EDEN, repeated measures of 1342 children's night-waking and inattention/hyperactivity symptoms were collected at age 2, 3 and 5-6 through questionnaires. Trajectories were computed using group-based modeling. Logistic regressions, adjusted for confounding factors, were used to measure the association between trajectories and to determine risk factors for belonging to the identified joint trajectories.Results: Two night-waking trajectories were observed, 20% of the children had a trajectory of `common night-waking', and 80% a trajectory of `rare night-waking'. The children were distributed in three inattention/hyperactivity trajectories, a low (47%), medium (40%) and high one (13%). Both night-waking and inattention/hyperactivity trajectories showed persistence of difficulties in preschool years. The risk of presenting a high inattention/hyperactivity trajectory compared to a low one was of 4.19[2.68-6.53] for common night-wakers, compared to rare night-wakers. Factors associated with joint trajectories were parent's education level and history of childhood behavioral problems, and the child's gender, night-sleep duration and collective care at 2 years of age.Conclusion: Results suggest that children presenting behavioral difficulties would benefit from a systematic investigation of their sleep quality and conversely.

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Source: https://tomesphere.com/paper/1904.05043