Sleep and 24-hour Rhythm Characteristics in Preschool Children Born Very Preterm and Full Term

Overview

Journal J Clin Sleep Med

Specialties Neurology
Psychiatry

Date 2023 Jan 20

PMID 36661086

Authors

Alja Bijlsma

Victoria A A Beunders

Demi J Dorrepaal

Koen F M Joosten

Inge A L P van Beijsterveldt

Jeroen Dudink

Irwin K M Reiss

Anita C S Hokken-Koelega

Marijn J Vermeulen

Affiliations

Soon will be listed here.

Abstract

Study Objectives: Sleep impacts the quality of life and is associated with cardiometabolic and neurocognitive outcomes. Little is known about the sleep of preterm-born children at preschool age. We, therefore, studied sleep and 24-hour rhythms of preschool children born very preterm compared with full-term children.

Methods: This was a prospective cohort study comparing sleep quality and quantity of children born very preterm (gestational age [GA] < 30 weeks) with full-term children at the (corrected) age of 3 years, using (1) 2 parent-reported questionnaires (Brief Infant Sleep Questionnaire and The Munich Chronotype Questionnaire) and (2) at least 3 days of triaxial wrist actigraphy combined with sleep diary. We performed regression analyses with adjustment for sex (corrected), age, and birth weight standard deviation (SD) score.

Results: Ninety-seven very-preterm-born (median GA 27+5; interquartile range 26 + 3;29 + 0 weeks) and 92 full-term children (GA 39 + 3; 38 + 4;40 + 4 weeks) were included. Sleep problems and other reported sleep parameters were not different between groups. As measured with actigraphy, sleep and 24-hour rhythm were similar between groups, except for very-preterm born children waking up 21 minutes (4;38) minutes later than full-term children (adjusted = .001).

Conclusions: Based on parent reports and actigraphy, very-preterm-born children sleep quite similar to full-term controls at the corrected age of 3 years. Reported sleep problems were not different between groups. Actigraphy data suggest that preterm-born children may wake up later than children born full term. Further studies are needed to explore how sleep relates to cardiometabolic and neurodevelopmental outcomes after preterm birth and whether early interventions are useful to optimize 24-hour rhythm and sleep.

Citation: Bijlsma A, Beunders VAA, Dorrepaal DJ, et al. Sleep and 24-hour rhythm characteristics in preschool children born very preterm and full term. . 2023;19(4):685-693.

Citing Articles

Does sleep correlate with neurodevelopmental outcomes in preterm and term infants in early-preschool children?.

Morse A, Kothare S J Clin Sleep Med. 2023; 19(4):639-640.

PMID: 36798981 PMC: 10071377. DOI: 10.5664/jcsm.10522.

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