Advanced sleep phase in adolescents born preterm.

Area of Science:

• Developmental Psychology
• Sleep Medicine
• Pediatrics

Background:

• Perinatal factors, such as preterm birth, may have long-term effects on adolescent development.
• Sleep patterns and quality are crucial for adolescent health and well-being.
• Understanding differences in sleep between preterm and term-born adolescents is important for targeted interventions.

Purpose of the Study:

• To compare sleep patterns and quality in adolescents born preterm versus term.
• To investigate mediating factors (mood, behavior, socioeconomic status) that may explain observed sleep differences.
• To explore the influence of perinatal factors on adolescent sleep phenotypes.

Main Methods:

• Longitudinal study of 501 adolescents (16-19 years old) from the Cleveland Children's Sleep and Health Study cohort.
• Utilized overnight polysomnography (PSG), wrist actigraphy, and 1-week sleep logs for objective sleep assessment.
• Employed validated questionnaires including the Modified Epworth Sleepiness Scale and Adolescent Sleep Hygiene Scale.

Main Results:

• Adolescents born preterm showed significantly earlier bedtimes, wake times, and sleep midpoints (approx. 22 min) via actigraphy.
• Preterm-born adolescents had fewer sleep arousals (PSG) and reported greater morning alertness and less fatigue.
• No significant differences were found in sleep hygiene or sleep-wake patterns when adjusting for demographic and psychosocial factors.

Conclusions:

• Perinatal factors, including preterm birth, are associated with distinct adolescent sleep patterns and improved sleep quality.
• These findings support the hypothesis that early life experiences can shape later-life sleep phenotypes.
• Developmental influences and parenting styles may play a role in mediating the relationship between perinatal factors and adolescent sleep.