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Published on: October 11, 2018
Shorter night-time sleep duration and later sleep timing from infancy to adolescence
Ifigeneia Manitsa1,2, Alice M Gregory3, Matthew R Broome1,2,4,5
1Institute for Mental Health, University of Birmingham, Edgbaston, Birmingham, UK.
Insights
This study identified persistent poor sleep health trajectories from infancy to adolescence. Higher family adversity and socioeconomic status were linked to shorter sleep duration, later bedtimes, and later midpoint of sleep (MPS).
Area of Science:
- Developmental psychology
- Sleep science
- Public health
Background:
- Sleep patterns change significantly from infancy through adolescence.
- Persistent poor sleep health can have long-term consequences.
- Understanding developmental sleep trajectories and associated risk factors is crucial.
Purpose of the Study:
- To examine sleep duration, bedtime, and midpoint of sleep (MPS) trajectories from infancy to adolescence.
- To identify perinatal risk factors associated with persistent poor sleep health.
Main Methods:
- Utilized data from 12,962 participants in the Avon Longitudinal Study of Parents and Children (ALSPAC).
- Employed latent class growth analyses to identify sleep trajectories.
- Applied logistic regressions to assess associations between risk factors and poor sleep health.
Main Results:
- Identified four distinct trajectories for sleep duration, bedtime, and MPS.
- Higher family adversity index (FAI) was associated with increased risk of shorter sleep, later bedtime, and later MPS.
- Higher maternal socioeconomic status was associated with a reduced risk of shorter sleep, later bedtime, and later MPS.
Conclusions:
- Persistent poor sleep health, including shorter sleep duration, later bedtime, and later MPS, is detectable from infancy to adolescence.
- Specific perinatal factors, such as family adversity and socioeconomic status, are linked to these persistent sleep health domains.
Background:
Here, we (a) examined the trajectories of night-time sleep duration, bedtime and midpoint of night-time sleep (MPS) from infancy to adolescence, and (b) explored perinatal risk factors for persistent poor sleep health.
Methods:
This study used data from 12,962 participants in the Avon Longitudinal Study of Parents and Children (ALSPAC). Parent or self-reported night-time sleep duration, bedtime and wake-up time were collected from questionnaires at 6, 18 and 30 months, and at 3.5, 4-5, 5-6, 6-7, 9, 11 and 15-16 years. Child's sex, birth weight, gestational age, health and temperament, together with mother's family adversity index (FAI), age at birth, prenatal socioeconomic status and postnatal anxiety and depression, were included as risk factors for persistent poor sleep health. Latent class growth analyses were applied first to detect trajectories of night-time sleep duration, bedtime and MPS, and we then applied logistic regressions for the longitudinal associations between risk factors and persistent poor sleep health domains.
Results:
We obtained four trajectories for each of the three sleep domains. In particular, we identified a trajectory characterized by persistent shorter sleep, a trajectory of persistent later bedtime and a trajectory of persistent later MPS. Two risk factors were associated with the three poor sleep health domains: higher FAI with increased risk of persistent shorter sleep (OR = 1.20, 95% CI = 1.11-1.30, p < .001), persistent later bedtime (OR = 1.28, 95% CI = 1.19-1.39, p < .001) and persistent later MPS (OR = 1.30, 95% CI = 1.22-1.38, p < .001); and higher maternal socioeconomic status with reduced risk of persistent shorter sleep (OR = 0.99, 95% CI = 0.98-1.00, p = .048), persistent later bedtime (OR = 0.98, 95% CI = 0.97-0.99, p < .001) and persistent later MPS (OR = 0.99, 95% CI = 0.98-0.99, p < .001).
Conclusions:
We detected trajectories of persistent poor sleep health (i.e. shorter sleep duration, later bedtime and later MPS) from infancy to adolescence, and specific perinatal risk factors linked to persistent poor sleep health domains.
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