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Prevalence and Determinants of Bad Sleep Perception among Italian Children and Adolescents
Serena Malloggi1, Francesca Conte2, Giorgio Gronchi1
1Department NEUROFARBA, University of Firenze, 50135 Firenze, Italy.
Insights
Prevalence of bad sleepers increases with age, from 8.3% in children to 15.3% in adolescents. Poor sleep quality is linked to depression and sleep disturbances, with factors shifting from psychological to sleep characteristics as children age.
Area of Science:
- Pediatric Sleep Medicine
- Developmental Psychology
- Adolescent Health
Background:
- Sleep problems in young populations are understudied.
- Prevalence and determinants of poor sleep quality perception in children, preadolescents, and adolescents require investigation.
Purpose of the Study:
- To investigate the prevalence of bad sleepers across different age groups.
- To identify the determinants of sleep quality perception in children, preadolescents, and adolescents.
Main Methods:
- Utilized the School Sleep Habits Survey on a sample of 307 children, 717 preadolescents, and 406 adolescents.
- Categorized participants into 'good sleepers' and 'bad sleepers' based on subjective sleep quality.
- Analyzed sleep quality perception, habits, features, daytime behavior, sleep disturbances, circadian preference, and dreaming.
Main Results:
- 11.7% of the total sample reported being bad sleepers, with prevalence increasing by age (children: 8.3%; preadolescents: 11.3%; adolescents: 15.3%).
- Bad sleepers across all ages exhibited higher eveningness, sleepiness, depression, longer sleep latency, insufficient sleep, nocturnal awakenings, sleep-wake problems, and unpleasant dreams compared to good sleepers.
- Sleep quality perception determinants varied by age: children's perception was influenced by depressed mood, eveningness, and unpleasant dreams; preadolescents' by sleep latency, awakening frequency, depressed mood, sleep sufficiency, and unpleasant dreams; adolescents' by awakening frequency, depressed mood, and sleep sufficiency.
Conclusions:
- In children, poor subjective sleep quality is primarily linked to daytime psychological factors like depressed mood.
- In preadolescents and adolescents, sleep characteristics such as frequent awakenings become significant determinants alongside psychological factors.
- These age-related shifts may reflect evolving objective sleep modifications and increased adolescent awareness of their sleep patterns.
Abstract:
Although sleep problems at young ages are well investigated, the prevalence of bad sleepers and the determinants of sleep quality perception remain unexplored in these populations. For this purpose, we addressed these issues in a sample of children (n = 307), preadolescents (n = 717), and adolescents (n = 406) who completed the School Sleep Habits Survey, addressing sleep quality perception, sleep habits, sleep features, daytime behavior and sleep disturbances, circadian preference, and dreaming. The sample was split in "good sleepers" and "bad sleepers", based on the answer to the question item assessing overall subjective sleep quality. Being a bad sleeper was reported by 11.7% of the sample, with significant between-groups differences (children: 8.3%; preadolescents: 11.3%; adolescents: 15.3%; p = 0.01). At all ages, relative to good sleepers, bad sleepers showed higher eveningness, sleepiness, and depression, longer sleep latency, more frequent insufficient sleep, nocturnal awakenings, sleep-wake behavioral problems, and unpleasant dreams (all p's ≤ 0.01). Sleep quality perception was predicted: in children, by depressed mood, eveningness, and unpleasant dreams (all p's ≤ 0.01); in preadolescents, by sleep latency, awakening frequency, depressed mood, sufficiency of sleep, and unpleasant dreams (all p's < 0.01); in adolescents, by awakening frequency, depressed mood, and sufficiency of sleep (all p's < 0.001). In children, bad subjective sleep quality appears to be mainly determined by daytime psychological features, for example, depressed mood, whereas at later ages, sleep characteristics, such as frequent awakenings, add to the former determinants. This could depend on (a) the appearance, with increasing age, of objective sleep modifications and (b) a greater attention paid by adolescents to their sleep characteristics.
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