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Published on: October 2, 2019
Adverse associations of sleep problems in Australian preschoolers: national population study
Harriet Hiscock1, Louise Canterford, Obioha C Ukoumunne
1Centre for Community Child Health, Royal Children's Hospital, Flemington Road, Parkville, Victoria 3052, Australia. harriet.hiscock@rch.org.au
Insights
Preschool sleep problems are common and linked to poor quality of life, behavior issues, and attention-deficit/hyperactivity disorder (ADHD). These issues can impact a child's readiness for school.
Area of Science:
- Pediatric Health
- Developmental Psychology
- Sleep Medicine
Background:
- Sleep problems in preschool-aged children are under-researched compared to school-aged children.
- Understanding these issues is crucial for early intervention and support.
Purpose of the Study:
- To investigate the associations between sleep problems in 4-5 year olds and several developmental and health outcomes.
- To examine relationships with behavior, quality of life, cognitive skills, ADHD diagnosis, and injury.
Main Methods:
- Utilized data from 4983 families in the Longitudinal Study of Australian Children.
- Assessed sleep problems via caregiver reports, and measured quality of life, behavior, ADHD, and injury.
- Administered direct assessments for receptive vocabulary and early numeracy skills.
Main Results:
- Sleep problems were prevalent in the preschool population.
- Children with sleep problems exhibited poorer health-related quality of life and more behavioral difficulties.
- Higher rates of attention-deficit/hyperactivity disorder (ADHD) were observed in children with sleep problems. Difficulty initiating sleep and morning tiredness were most strongly associated with adverse outcomes.
Conclusions:
- The high prevalence of preschool sleep problems suggests a significant impact on a large number of children.
- These adverse outcomes may negatively affect the critical transition to formal schooling.
Objective:
In contrast to school-aged children, the impact of sleep problems in preschool-aged children is not well documented. We aimed to determine relationships between preschool-aged child sleep problems and child behavior; health-related quality of life; verbal, preliteracy, and early numeracy skills; diagnosis of attention-deficit/hyperactivity disorder; and injury.
Participants And Methods:
Participants included families (n = 4983) participating in the first wave of the Longitudinal Study of Australian Children, a nationally representative study of Australian children aged 4 to 5 years surveyed from March to November 2004. Measures consisted of a primary caregiver's report of whether their child had a sleep problem (none versus mild versus moderate/severe); specific sleep patterns occurring > or = 4 nights per week; health-related quality of life (by using the Pediatric Quality of Life Inventory 4.0); behavior (by using the Strengths and Difficulties Questionnaire) and parent-reported diagnosis of attention-deficit/hyperactivity disorder; and injury requiring medical attention in the past 12 months. Tests of receptive vocabulary and preliteracy/numeracy skills (by using the Who Am I? developmental assessment and the adapted Peabody Picture Vocabulary Test, 3rd Edition) were directly administered to each child.
Results:
Sleep problems were common, and compared with children without sleep problems, children with sleep problems had poorer child health-related quality of life, more behavior problems, and higher rates of attention-deficit/hyperactivity disorder. Difficulty going to sleep and morning tiredness had greater adverse associations than snoring or night waking.
Conclusions:
Given that sleep problems are very common, the adverse outcomes shown here could affect the transition to school for a very large number of preschoolers.
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