Nadine Perkinson-Gloor1, Priska Hagmann-von Arx1, Serge Brand2, Edith Holsboer-Trachsler3, Alexander Grob1, Peter Weber4, Sakari Lemola5. 1. Department of Psychology, University of Basel, Basel, Switzerland. 2. Center for Affective, Stress and Sleep Disorders, Psychiatric Clinics of the University of Basel, Basel, Switzerland; Department of Sport, Exercise and Health, Division of Sport Science, Faculty of Medicine, University of Basel, Basel, Switzerland. 3. Center for Affective, Stress and Sleep Disorders, Psychiatric Clinics of the University of Basel, Basel, Switzerland. 4. Division of Neuropediatrics and Developmental Medicine, University Children's Hospital Basel, Basel, Switzerland. 5. Department of Psychology, University of Basel, Basel, Switzerland. Electronic address: sakari.lemola@unibas.ch.
Abstract
OBJECTIVE: To examine the long-term stability of sleep duration, sleep continuity, and sleep architecture assessed via unattended home sleep electroencephalography (EEG) during middle childhood. METHODS: A total of 69 healthy children (18 girls and 51 boys) aged 8.2 years (standard deviation = 1.3 years) at T1 underwent unattended home sleep EEG on two nights separated by 18.5 months (standard deviation = 3.9 months). Of the children, 34 (49.3%) children were born prematurely (<32 gestational weeks; mean birth weight = 1367 g) and 35 (50.7%) children were born at term (mean birth weight = 3275 g). RESULTS: We found moderate to substantial stability (all p <0.001) for total sleep time (TST; intraclass correlation coefficient [ICC] = 0.65), slow wave sleep (SWS; min, %: ICC = 0.49), and stage 2 sleep (min; ICC = 0.47), and found fair stability (all p <0.013) for sleep efficiency (ICC = 0.28), nocturnal awakenings (ICC = 0.33), stage 2 sleep (%; ICC = 0.32), and rapid eye movement (REM) sleep (min: ICC = 0.33; %: ICC = 0.27). Prematurity status was not associated with stability of sleep EEG indices over time. CONCLUSIONS: Long-term follow-up of one night of unattended home sleep EEG during middle childhood reveals that TST, stage 2 sleep, and SWS are relatively stable, trait-like characteristics. This applies less strongly for sleep efficiency, nocturnal awakenings, and REM sleep. Stage 1 sleep and REM latency showed no stability.
OBJECTIVE: To examine the long-term stability of sleep duration, sleep continuity, and sleep architecture assessed via unattended home sleep electroencephalography (EEG) during middle childhood. METHODS: A total of 69 healthy children (18 girls and 51 boys) aged 8.2 years (standard deviation = 1.3 years) at T1 underwent unattended home sleep EEG on two nights separated by 18.5 months (standard deviation = 3.9 months). Of the children, 34 (49.3%) children were born prematurely (<32 gestational weeks; mean birth weight = 1367 g) and 35 (50.7%) children were born at term (mean birth weight = 3275 g). RESULTS: We found moderate to substantial stability (all p <0.001) for total sleep time (TST; intraclass correlation coefficient [ICC] = 0.65), slow wave sleep (SWS; min, %: ICC = 0.49), and stage 2 sleep (min; ICC = 0.47), and found fair stability (all p <0.013) for sleep efficiency (ICC = 0.28), nocturnal awakenings (ICC = 0.33), stage 2 sleep (%; ICC = 0.32), and rapid eye movement (REM) sleep (min: ICC = 0.33; %: ICC = 0.27). Prematurity status was not associated with stability of sleep EEG indices over time. CONCLUSIONS: Long-term follow-up of one night of unattended home sleep EEG during middle childhood reveals that TST, stage 2 sleep, and SWS are relatively stable, trait-like characteristics. This applies less strongly for sleep efficiency, nocturnal awakenings, and REM sleep. Stage 1 sleep and REM latency showed no stability.
Authors: Biyao Wang; Corinna Isensee; Andreas Becker; Janice Wong; Peter R Eastwood; Rae-Chi Huang; Kevin C Runions; Richard M Stewart; Thomas Meyer; L G Brüni; Florian D Zepf; Aribert Rothenberger Journal: Front Psychol Date: 2016-12-01