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  1. Article: Parents' Sleep Multi-Trajectory Modelling from 3 to 36 Months Postpartum in the SEPAGES Cohort.

    Kim, Mihyeon / Lyon-Caen, Sarah / Bayat, Sam / Philippat, Claire / Plancoulaine, Sabine

    Nature and science of sleep

    2024  Volume 16, Page(s) 247–261

    Abstract: Objective: We investigated maternal and paternal sleep evolution from 3 to 36 months postpartum, their interrelations and predictors in the SEPAGES cohort.: Methods: Sleep information (night sleep duration [NSD], weekend daytime sleep duration [DSD] ... ...

    Abstract Objective: We investigated maternal and paternal sleep evolution from 3 to 36 months postpartum, their interrelations and predictors in the SEPAGES cohort.
    Methods: Sleep information (night sleep duration [NSD], weekend daytime sleep duration [DSD] and subjective sleep loss [SSL]) was collected by self-administered questionnaires at 3, 18, 24 and 36 months postpartum in the SEPAGES French cohort that included 484 mothers and 410 fathers. Group-based multi-trajectory modelling was used to identify maternal, paternal and couple sleep multi-trajectory groups among 188 couples reporting sleep data for at least 2 time points. Multinomial logistic regression was used to assess associations between parental sleep multi-trajectories and early characteristics such as sociodemographic, chronotypes, child sex, birth seasonality or breastfeeding duration.
    Results: We identified three maternal (M1-M3), paternal (F1-F3) and couple (C1-C3) sleep multi-trajectory groups with similar characteristics: a group with short NSD and high SSL prevalence (M1, F2, C2), a group with long NSD but medium SSL prevalence (M2, F3, C3) and a group with long NSD and low SSL prevalence (M3, F1, C1). Mothers with the shortest NSD (M1) were less likely to have a partner with long NSD (F2). As compared with long NSD and low SSL prevalence (C1), couples with short NSD and high SSL prevalence (C2) were less likely to have had a first child born in the autumn and fathers in C2 had a later chronotype.
    Conclusion: We identified distinct sleep multi-trajectory groups for mothers, fathers and couples from 3- to 36-month postpartum. Sleep patterns within couples were homogeneous.
    Language English
    Publishing date 2024-03-06
    Publishing country New Zealand
    Document type Journal Article
    ZDB-ID 2587468-8
    ISSN 1179-1608
    ISSN 1179-1608
    DOI 10.2147/NSS.S430024
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Editorial: Sudden infant death syndrome: Moving forward.

    Gras-Le Guen, Christèle / Franco, Patricia / Plancoulaine, Sabine

    Frontiers in pediatrics

    2022  Volume 10, Page(s) 972430

    Language English
    Publishing date 2022-07-20
    Publishing country Switzerland
    Document type Editorial
    ZDB-ID 2711999-3
    ISSN 2296-2360
    ISSN 2296-2360
    DOI 10.3389/fped.2022.972430
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Study of the association between cannabis use and sleep disturbances in a large sample of University students.

    Coelho, Julien / Montagni, Ilaria / Micoulaud-Franchi, Jean-Arthur / Plancoulaine, Sabine / Tzourio, Christophe

    Psychiatry research

    2023  Volume 322, Page(s) 115096

    Abstract: Sleep complaints and cannabis use are common among University students and are related to detrimental effects on health. The aim of this study was to explore their association. This cross-sectional study based on the i-Share e-cohort included French ... ...

    Abstract Sleep complaints and cannabis use are common among University students and are related to detrimental effects on health. The aim of this study was to explore their association. This cross-sectional study based on the i-Share e-cohort included French students between 18 and 30 years old (n = 14,787). Frequency of cannabis use was categorized into daily, weekly, monthly, and never/rarely use. Sleep complaints were defined using four items (i.e., insomnia, sleepiness, poor sleep quality, and sleep deprivation). In the whole sample (mean age: 20.4 years, 75.5% of females), 22.7% had insomnia, 18.3% had sleepiness, 22.4% had poor sleep quality, 52.5% had sleep deprivation, and 5.8% used cannabis weekly or daily. After adjustment, the likelihood of insomnia was significantly higher by 45% in cannabis users compared to non-users. The estimates steadily increased with frequency of use, reaching a 2.0-fold higher likelihood of insomnia in daily users compared to never/rarely users. Results were similar for the other sleep complaints. These findings provide support for an association between cannabis use and sleep complaints, particularly insomnia, among University students. Though direction and causality cannot be established in this setting, these results suggest warning students and health professionals about the association between cannabis use and sleep complaints.
    MeSH term(s) Female ; Humans ; Young Adult ; Adult ; Adolescent ; Cannabis ; Sleep Initiation and Maintenance Disorders ; Sleep Deprivation ; Universities ; Cross-Sectional Studies ; Sleepiness ; Sleep ; Sleep Wake Disorders ; Students
    Language English
    Publishing date 2023-02-08
    Publishing country Ireland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 445361-x
    ISSN 1872-7123 ; 1872-7506 ; 0925-4927 ; 0165-1781
    ISSN (online) 1872-7123 ; 1872-7506
    ISSN 0925-4927 ; 0165-1781
    DOI 10.1016/j.psychres.2023.115096
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Longitudinal sleep multi-trajectories from age 1 to 5.5 years and their early correlates: results from the Étude Longitudinale Française depuis l'Enfance birth cohort study.

    Kim, Mihyeon / Saade, Danielle / Dufourg, Marie-Noëlle / Charles, Marie-Aline / Plancoulaine, Sabine

    Sleep

    2023  Volume 46, Issue 11

    Abstract: Study objectives: To identify sleep multi-trajectories in children from age 1 to 5.5 years and their early correlates.: Methods: We collected early family, maternal, and child characteristics, including children's nighttime sleep duration (NSD) and ... ...

    Abstract Study objectives: To identify sleep multi-trajectories in children from age 1 to 5.5 years and their early correlates.
    Methods: We collected early family, maternal, and child characteristics, including children's nighttime sleep duration (NSD) and daytime sleep duration (DSD), night waking (NW), and sleep-onset difficulties (SOD), by parental phone interviews at age 2 months and 1-, 2-, 3.5-, and 5.5 years. Group-based multi-trajectory modeling identified sleep multi-trajectory groups. Multinomial logistic regression assessed associations with early factors.
    Results: We identified five distinct sleep multi-trajectory groups for NSD, DSD, NW, and SOD in 9273 included children. The "Good sleepers" (31.6%) and "Long sleepers" (31.0%) groups had low NW and SOD prevalence and shorter NSD but longer DSD in "Good sleepers" than in "Long sleepers." The "Good sleepers but few SOD" group (10.3%) had long NSD and DSD but a SOD peak at age 3.5 years; the "Improving NW and SOD" group (9.6%) showed short but rapidly increasing NSD to a plateau and high but decreasing NW and SOD; the "Persistent NW and SOD" group (17.5%) had persistent high NW and SOD. Maternal depression during pregnancy and sleep habits at age 1 (e.g. parental presence or feeding to fall asleep, sleeping at least part of the night away from own bed) were common risk factors associated with the most disordered sleep multi-trajectory groups.
    Conclusions: We identified distinct sleep multi-trajectory groups and early life-associated factors in preschoolers. Most of the factors associated with the most sleep-disordered multi-trajectory groups are likely modifiable and provide clues for early prevention interventions.
    MeSH term(s) Child ; Female ; Pregnancy ; Humans ; Child, Preschool ; Infant ; Cohort Studies ; Longitudinal Studies ; Sleep ; Sleep Initiation and Maintenance Disorders ; Parents ; Sleep Wake Disorders/epidemiology
    Language English
    Publishing date 2023-09-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 424441-2
    ISSN 1550-9109 ; 0161-8105
    ISSN (online) 1550-9109
    ISSN 0161-8105
    DOI 10.1093/sleep/zsad236
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Associations between screen use, outdoor time/daylight exposure and sleep changes during the first COVID-19 lockdown in French children from the ELFE and EPIPAGE2 birth cohorts.

    Kamga Fogno, Alex Wilfried / Rouquette, Alexandra / Gronfier, Claude / Bernard, Jonathan Y / Plancoulaine, Sabine

    CNS neuroscience & therapeutics

    2023  Volume 29, Issue 6, Page(s) 1649–1656

    Abstract: Aims: To investigate associations between outdoor and screen time and changes in sleep patterns in children from two nationwide birth-cohorts in the SAPRIS project.: Methods: During the first French COVID-19 pandemic lockdown, volunteer parents of ... ...

    Abstract Aims: To investigate associations between outdoor and screen time and changes in sleep patterns in children from two nationwide birth-cohorts in the SAPRIS project.
    Methods: During the first French COVID-19 pandemic lockdown, volunteer parents of children enrolled in the ELFE and EPIPAGE2 birth-cohorts completed online questions about their child's outdoor time, screen time, and changes in sleep duration and quality compared with the pre-lockdown situation. In 5700 children (aged 8-9 years, 52% boys) with available data, we assessed associations between outdoor time, screen time, and sleep changes using multinomial logistic regression models adjusted for confounders.
    Results: Children spent on average 3 h08 outdoors and 4 h34 using screens/day (3 h27 for leisure, 1 h07 for class-work). Sleep duration increased in 36% of children and decreased in 13.4%; sleep difficulties appeared/increased in 22.5% and decreased/disappeared/remained stable in 18.3%. After adjustment, increased screen time, especially for leisure, was associated with increased and decreased sleep duration (OR(95%CI) = 1.03(1.00-1.06) and OR = 1.06(1.02-1.10), respectively). No association was observed between outdoor time and sleep changes after adjustment.
    Conclusions: Our study adds evidence for the association between high leisure-time screen time and shorter sleep time. It supports current screen guidelines for children, especially during leisure time and for those whose sleep duration is short.
    MeSH term(s) Male ; Humans ; Child ; Female ; COVID-19/epidemiology ; Birth Cohort ; Pandemics ; Communicable Disease Control ; Sleep
    Language English
    Publishing date 2023-02-20
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2423461-8
    ISSN 1755-5949 ; 1755-5930
    ISSN (online) 1755-5949
    ISSN 1755-5930
    DOI 10.1111/cns.14128
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  6. Article: Maturation of Arousals during Day and Night in Preterm Infants.

    Guyon, Aurore / Ravet, Francoise / Champavert, Alex / Thieux, Marine / Patural, Hugues / Plancoulaine, Sabine / Franco, Patricia

    Children (Basel, Switzerland)

    2022  Volume 9, Issue 2

    Abstract: The objective of this study was to compare the maturation of spontaneous arousals during day and night sleep in preterm and term infants. From the Autonomic Baby Evaluation study, the sleep and arousal characteristics of 12 preterm (35.1 ± 2.1 weeks' ... ...

    Abstract The objective of this study was to compare the maturation of spontaneous arousals during day and night sleep in preterm and term infants. From the Autonomic Baby Evaluation study, the sleep and arousal characteristics of 12 preterm (35.1 ± 2.1 weeks' gestational age, GA) and 21 term (39.8 ± 0.8 weeks GA) newborns were compared between diurnal and nocturnal sleep periods at birth (M0) and 6 months (M6) of age. Models were adjusted for time (night/day), maturation (M0/M6), prematurity (yes/no). We found that preterm infants had less active sleep (AS)% than term infants with maturation during both day and night sleep, which may reflect accelerated brain maturation secondary to stress or environmental exposure after birth. Moreover, there was a difference in arousal maturation during day and night sleep in the preterm infants, as shown previously for term infants, which suggests the emergence of a circadian rhythm during the earliest postnatal period. We also showed that compared to term infants, these moderate preterm infants had fewer total arousals and, more specifically, fewer arousals in AS during day and night sleep, exposing them to a higher risk of sudden infant death syndrome.
    Language English
    Publishing date 2022-02-08
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2732685-8
    ISSN 2227-9067
    ISSN 2227-9067
    DOI 10.3390/children9020223
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  7. Article ; Online: Metabolic disturbances in children with narcolepsy: a retrospective study.

    Zhang, Min / Thieux, Marine / Arvis, Laura / Lin, Jian-Sheng / Guyon, Aurore / Plancoulaine, Sabine / Villanueva, Carine / Franco, Patricia

    Sleep

    2023  Volume 46, Issue 7

    Abstract: Study objectives: To determine the prevalence of metabolic syndrome (MS) in children with narcolepsy and to evaluate their clinical and sleep characteristics according to the different components of MS.: Methods: This retrospective study consisted of ...

    Abstract Study objectives: To determine the prevalence of metabolic syndrome (MS) in children with narcolepsy and to evaluate their clinical and sleep characteristics according to the different components of MS.
    Methods: This retrospective study consisted of 58 de novo children with narcolepsy (median age: 12.7 years, 48.3% of boys). The recently published MS criteria in a French population of children were used. Clinical and sleep characteristics were compared between groups with different components of MS.
    Results: MS was present in 17.2% of children with narcolepsy, among whom 79.3% presented with high homeostasis model assessment for insulin resistance (HOMA-IR), 25.9% with high body mass index, 24.1% with low high-density lipoprotein cholesterol (HDL-C), and 12.1% with high triglycerides. Patients with at least two MS components had more night eating behaviors and tended to have lower percentage of slow-wave sleep and more fragmented sleep. On multiple sleep latency test, they had shorter mean sleep latencies to rapid eye movement (REM), non-REM sleep and tended to have more sleep onset REM periods (SOREMPs) than those with less than two MS components.
    Conclusions: Insulin resistance was found to be the core metabolic disturbance in obese as well as in nonobese children with narcolepsy. Children with narcolepsy with at least two MS components presented a more severe daytime sleepiness and a higher prevalence of night-eating behaviors than those with less than two MS components. Such children might benefit from early evaluation and management in order to prevent future complications.
    MeSH term(s) Male ; Humans ; Child ; Retrospective Studies ; Insulin Resistance ; Narcolepsy/complications ; Narcolepsy/epidemiology ; Disorders of Excessive Somnolence ; Sleep
    Language English
    Publishing date 2023-04-04
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 424441-2
    ISSN 1550-9109 ; 0161-8105
    ISSN (online) 1550-9109
    ISSN 0161-8105
    DOI 10.1093/sleep/zsad076
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  8. Article ; Online: Does the brain sleep differently depending on intellectual abilities?

    Thieux, Marine / Zhang, Min / Guignard-Perret, Anne / Mazza, Stéphanie / Plancoulaine, Sabine / Guyon, Aurore / Franco, Patricia

    CNS neuroscience & therapeutics

    2023  Volume 30, Issue 2, Page(s) e14378

    Abstract: Aims: To compare the children's sleep electroencephalogram according to their intellectual profile.: Methods: Children were grouped according to their Wechsler Intelligence Scale for Children (WISC) scores (17 with normal intelligence quotient [IQ, ... ...

    Abstract Aims: To compare the children's sleep electroencephalogram according to their intellectual profile.
    Methods: Children were grouped according to their Wechsler Intelligence Scale for Children (WISC) scores (17 with normal intelligence quotient [IQ, NIQ] and 24 with high IQ [HIQ]). Comparisons of spectral power between groups and its relationship with WISC scores were assessed using analyses of variance and linear regression models, adjusted for age and sex.
    Results: Children with HIQ had more rapid eye movement (REM) sleep, especially late at night, and more power in slow-frequency bands during REM sleep than those with NIQ. There were also positive associations between the processing speed index and the spectral power in β bands in NREM sleep, and with the spectral power in α, σ, β, and γ bands in REM sleep, with different associations between groups.
    Conclusion: The enhanced power in slow bands during REM sleep in children with HIQ overlaps with that of typical REM sleep oscillations thought to be involved in emotional memory consolidation. The dissimilar relationships between spectral power and WISC scores in NIQ and HIQ groups may underlie functional differences in brain activity related to cognitive efficiency, questioning the direction of the relationship between sleep and cognitive functioning.
    MeSH term(s) Child ; Humans ; Polysomnography ; Sleep ; Sleep, REM ; Electroencephalography ; Cognition ; Brain
    Language English
    Publishing date 2023-07-23
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2423461-8
    ISSN 1755-5949 ; 1755-5930
    ISSN (online) 1755-5949
    ISSN 1755-5930
    DOI 10.1111/cns.14378
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  9. Article ; Online: Effectiveness of an intervention program on physical activity in children with narcolepsy type 1.

    Brunel, Lisa / Brossaud, Enzo / Lioret, Julien / Jaffiol, Antoine / Vanderghote, Louison / Cuisinier, Léa / Peter-Derex, Laure / Ricordeau, François / Thieux, Marine / Comajuan, Marion / Plancoulaine, Sabine / Guyon, Aurore / Franco, Patricia

    Sleep medicine

    2024  Volume 116, Page(s) 138–146

    Abstract: Objectives: Physical activity (PA) is recommended as part of the management of narcolepsy type 1 (NT1). This study aimed at 1) characterizing PA in children and adolescents treated for NT1 using objective and subjective measurements, 2) evaluating how ... ...

    Abstract Objectives: Physical activity (PA) is recommended as part of the management of narcolepsy type 1 (NT1). This study aimed at 1) characterizing PA in children and adolescents treated for NT1 using objective and subjective measurements, 2) evaluating how PA is associated with NT1 symptoms and comorbidities, and 3) evaluating the effects of an Adapted Physical Activity (APA) program on PA and clinical characteristics.
    Patients/methods: Patients with NT1 from the National Reference Center of Narcolepsy (Lyon, France) were consecutively included in an APA intervention protocol. Narcolepsy symptoms and comorbidities were collected using standardized questionnaires and sustained attention was evaluated using the Bron-Lyon Attention Stability Test before and after the four-week APA intervention. PA was measured objectively using actigraphy throughout the study.
    Results: Twenty-seven NT1 patients were included (median age 14.7 years [8.3-18.4], cataplexy 88.9%, obesity 37.0%). At baseline, 52.4% of the patients had satisfactory PA levels according to international recommendations. Patients with leisure-time PA (LTPA) showed higher quality of life than patients without. 45% of the patients increased PA during the intervention compared to baseline. These responsive patients had more depressive feelings and tended to have lower objective PA than non-responsive patients at baseline. No significant correlation was found between PA levels before and during the intervention and other clinical data.
    Conclusions: Most children with NT1 showed satisfying PA levels despite their daytime sleepiness. LTPA engagement was associated with higher quality of life. An APA intervention could be effective in children with narcolepsy, especially for those with depressive feelings.
    MeSH term(s) Child ; Adolescent ; Humans ; Quality of Life ; Narcolepsy/diagnosis ; Actigraphy/methods ; Obesity/complications ; Exercise
    Language English
    Publishing date 2024-03-04
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2012041-2
    ISSN 1878-5506 ; 1389-9457
    ISSN (online) 1878-5506
    ISSN 1389-9457
    DOI 10.1016/j.sleep.2024.03.002
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  10. Article ; Online: Longitudinal association between sleep features and refractive errors in preschoolers from the EDEN birth-cohort.

    Rayapoullé, Alexis / Gronfier, Claude / Forhan, Anne / Heude, Barbara / Charles, Marie-Aline / Plancoulaine, Sabine

    Scientific reports

    2021  Volume 11, Issue 1, Page(s) 9044

    Abstract: Refractive errors are common, especially in children and adolescents, leading to global health issues, academic implications and economic costs. Circadian rhythm and sleep habits may play a role. The study included 1130 children from the EDEN birth- ... ...

    Abstract Refractive errors are common, especially in children and adolescents, leading to global health issues, academic implications and economic costs. Circadian rhythm and sleep habits may play a role. The study included 1130 children from the EDEN birth-cohort. Data were collected through parental questionnaires at age 2 and 5 for sleep duration and timing, and at age 5 for refractive error. At 5 years, 20.4% were prescribed glasses (2% for myopia, 11.9% for hyperopia and 6.8% for unknown reason). Children slept on average (SD) 11h05/night (± 30 min) and 10h49/night (± 48 min) at age 2 and 5, respectively. Average bedtime and midsleep was 8.36 pm (± 30 min), 2.06 am (± 36 min), and 8.54 pm (± 30 min), 2.06 am (± 24 min) at age 2 and 5, respectively. A U-shaped association was observed between sleep duration at age 2 and eyeglass prescription at age 5. Later midsleep and bedtime at age 2 were associated with an increased risk of eyeglass prescription at age 5. Associations became borderline significant after adjustment for confounding factors. Sleep duration and timing at age 2 were associated with subsequent refractive errors in preschoolers from general population. Sleep hygiene might be a target for refractive errors prevention.
    MeSH term(s) Adolescent ; Child ; Child, Preschool ; Circadian Rhythm ; Cross-Sectional Studies ; Female ; Humans ; Longitudinal Studies ; Male ; Pregnancy ; Refractive Errors/physiopathology ; Sleep/physiology ; Surveys and Questionnaires ; Time Factors
    Language English
    Publishing date 2021-04-27
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-021-88756-w
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