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1.
J Clin Sleep Med ; 2024 Apr 12.
Artículo en Inglés | MEDLINE | ID: mdl-38607244

RESUMEN

STUDY OBJECTIVES: Sleep disruption is prevalent and persistent among children who experience maltreatment/interpersonal trauma. Weighted blankets have gained popularity in recent years as a potential non-pharmacological intervention for improving sleep in various populations, but their efficacy has not been examined among maltreated children. The current study used a randomized, within-subjects, crossover design to examine whether the use of a weighted blanket improves objective and/or subjective indices of sleep among 30 children, ages 6 to 15 years (M = 9.7, SD = 2.9) adopted from foster care. METHODS: Participants used a weighted blanket for two weeks and their usual blanket for two weeks in a counterbalanced order. Sleep outcomes were measured using actigraphy and subjective sleep diaries. RESULTS: No differences in actigraphy-based or subjective estimates of total sleep time, sleep onset latency, wake after sleep onset, or sleep quality ratings were found based on blanket type. Child age, biological sex, timing of participation (school year versus summer months), and maltreatment/trauma history did not impact outcomes. CONCLUSIONS: Although we did not find evidence that weighted blankets improve sleep among children with a history of maltreatment/interpersonal trauma, additional well-controlled studies using larger samples of children are needed.

2.
Behav Sleep Med ; 22(4): 472-487, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38263632

RESUMEN

OBJECTIVES: Sleep disruption is prevalent among children placed in foster care, elevating risk for a range of deleterious outcomes. Theoretically, achieving permanency via adoption may have a positive influence on children's sleep via the presence of various factors, but little is known about the sleep health of children adopted from foster care, including predictors and moderators of sleep health. METHOD: The current study included 226 parents who adopted a child from foster care in the U.S. (aged 4-11 years) within the past two years and a propensity score matched sample of 379 caregivers of children currently in foster care. Both samples completed online questionnaires about their child's sleep, physical, and mental health. RESULTS: Comparatively, children in foster care experienced more nightmares, night terrors, moving to someone else's' bed during the night, and worse overall sleep quality, whereas adopted children were reported to experience significantly more nighttime awakenings. In the adopted sample, a greater number of prior foster placements unexpectedly predicted lower total sleep disturbance scores, but this relationship was moderated by parent-child interactions around sleep. In general, greater parental involvement in children's sleep was associated with lower levels of child sleep disturbance. CONCLUSIONS: Findings suggest that while specific sleep problems might remit after children in foster care achieve permanence, nighttime sleep fragmentation often persists. Parent-child interactions surrounding sleep may be pivotal in improving sleep health in this population.


Asunto(s)
Cuidados en el Hogar de Adopción , Relaciones Padres-Hijo , Humanos , Masculino , Femenino , Niño , Preescolar , Adulto , Encuestas y Cuestionarios , Niño Adoptado/psicología , Calidad del Sueño , Sueño/fisiología , Trastornos del Sueño-Vigilia/fisiopatología , Padres/psicología , Estados Unidos
3.
Sleep Med ; 113: 56-60, 2024 01.
Artículo en Inglés | MEDLINE | ID: mdl-37984018

RESUMEN

BACKGROUND: While connections between children's sleep and their daytime functioning are well established, less is known about the microstructural features of sleep that support emotional wellbeing. Investigating these relationships in healthy children may provide insight into adaptive emotional development. We therefore examined associations between non-rapid eye movement (N2) sleep spindles and both state- and trait-based measures of emotion. METHODS: A sample of 30 children (7-11 years) without psychiatric disorders completed a baseline assessment, one night of at-home polysomnography (PSG), and an in-lab emotional state assessment the next day including self-reported arousal in response to affective images. Trait-based measures of anxiety and depression as well as savoring, a positive emotion regulatory strategy, were also completed. N2 sleep spindle parameters, including spindle density (number/min) and peak frequency in central regions, were detected using an automated algorithm. RESULTS: Greater spindle density was significantly associated with decreased state-based emotional arousal towards negative affective images, and greater spindle peak frequency was associated with greater trait-based use of savoring. However, neither spindle parameter was associated with child anxiety or depressive symptoms. CONCLUSIONS: Findings align with and expand on prior research to suggest that N2 sleep spindles support adaptive emotional functioning in school-aged children.


Asunto(s)
Fases del Sueño , Sueño , Niño , Humanos , Sueño/fisiología , Fases del Sueño/fisiología , Polisomnografía , Ansiedad , Trastornos de Ansiedad , Electroencefalografía
4.
Psychol Bull ; 150(4): 440-463, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38127505

RESUMEN

In a largely sleep-deprived society, quantifying the effects of sleep loss on emotion is critical for promoting psychological health. This preregistered systematic review and meta-analysis quantified the effects of various forms of sleep loss on multiple aspects of emotional experiences. Eligible studies used experimental reductions of sleep via total sleep deprivation, partial sleep restriction, or sleep fragmentation in healthy populations to examine effects on positive affect, negative affect, general mood disturbances, emotional reactivity, anxiety symptoms, and/or depressive symptoms. In total, 1,338 effect sizes across 154 studies were included (N = 5,717; participant age range = 7-79 years). Random effects models were conducted, and all forms of sleep loss resulted in reduced positive affect (standardized mean difference [SMD] = -0.27 to -1.14), increased anxiety symptoms (SMD = 0.57-0.63), and blunted arousal in response to emotional stimuli (SMD = -0.20 to -0.53). Findings for negative affect, reports of emotional valence in response to emotional stimuli, and depressive symptoms were mixed and depended on the type of sleep loss. Nonlinear effects for the amount of sleep loss as well as differences based on the stage of sleep restricted (i.e., rapid eye movement sleep or slow-wave sleep) were also detected. This study represents the most comprehensive quantitative synthesis of experimental sleep and emotion research to date and provides strong evidence that periods of extended wakefulness, shortened sleep duration, and/or nighttime awakenings adversely influence human emotional functioning. Findings provide an integrative foundation for future research on sleep and emotion and elucidate the precise ways that inadequate sleep may impact our daytime emotional lives. (PsycInfo Database Record (c) 2024 APA, all rights reserved).


Asunto(s)
Emociones , Privación de Sueño , Humanos , Emociones/fisiología , Privación de Sueño/psicología , Privación de Sueño/fisiopatología , Adolescente , Adulto , Ansiedad/psicología , Ansiedad/fisiopatología , Depresión/psicología , Persona de Mediana Edad , Adulto Joven , Niño , Anciano
5.
Psychol Trauma ; 2023 Oct 23.
Artículo en Inglés | MEDLINE | ID: mdl-37870777

RESUMEN

OBJECTIVE: Childhood sexual abuse (CSA) is associated with posttraumatic stress symptoms (PTSSs) and sleep disturbance into adulthood. The latter is thought to emerge from dysregulation in biobehavioral systems, including nighttime hyperarousal; however, studies investigating specific mechanisms to explain these long-term sleep problems are limited. The present study examined presleep arousal, fear of sleep, and the cortisol awakening response (CAR) as putative mediators between PTSS and sleep disturbance in women with a history of CSA. METHOD: N = 64 cis-gendered women with a self-reported history of CSA completed a baseline diagnostic interview, self-reported mental health and sleep measures, 7 days of actigraphy monitoring with concurrent sleep diary, and 2 days of saliva sampling. RESULTS: PTSSs were not significantly associated with actigraphy-estimated sleep variables but were positively associated with self-reported sleep onset latency (SOL) and negatively associated with self-reported sleep quality. Similarly, PTSSs were not significantly associated with CAR but were associated with higher presleep arousal and fear of sleep ratings. Mediational models identified greater presleep cognitive arousal to partially explain the PTSS-SOL relationship. Specific features of CSA (i.e., age at time of abuse, location of abuse, relationship to the perpetrator) did not moderate this association. CONCLUSION: Findings suggest that targeting maladaptive cognitions (e.g., worries, rumination) that occur during the presleep period may be a potential intervention target in mitigating sleep disturbance and PTSSs in this population. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

6.
J Nerv Ment Dis ; 211(4): 306-313, 2023 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-36801864

RESUMEN

ABSTRACT: The present investigation examined associations of childhood maltreatment, anxiety sensitivity (AS), and sleep disturbance among a diverse sample of adults in psychiatric inpatient treatment. We hypothesized that childhood maltreatment would be indirectly associated with greater sleep disturbance through elevated AS. Exploratory analyses examined the indirect effect models with three AS subscales ( i.e. , physical, cognitive, and social concerns) as parallel mediators. A sample of adults in acute-care psychiatric inpatient treatment ( N = 88; 62.5% male; Mage = 33.32 years, SD = 11.07; 45.5% White) completed a series of self-report measures. After accounting for theoretically relevant covariates, childhood maltreatment was indirectly associated with sleep disturbance through AS. Parallel mediation analyses revealed that no individual subscale of AS significantly accounted for this association. These findings suggest that heightened levels of AS may explain the association between childhood maltreatment and sleep disturbance among adults in psychiatric inpatient treatment. Interventions targeting AS can be brief and efficacious and have the potential to improve clinical outcomes among psychiatric populations.


Asunto(s)
Maltrato a los Niños , Trastornos del Sueño-Vigilia , Humanos , Adulto , Masculino , Femenino , Niño , Pacientes Internos , Trastornos de Ansiedad/epidemiología , Trastornos de Ansiedad/complicaciones , Ansiedad/psicología , Trastornos del Sueño-Vigilia/etiología , Trastornos del Sueño-Vigilia/complicaciones , Maltrato a los Niños/psicología , Sueño
7.
Child Psychiatry Hum Dev ; 54(6): 1534-1545, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-35435538

RESUMEN

Sleep patterns following a natural disaster are associated with mental health difficulties, but research in youth samples has been limited to subjective reports of sleep. Participants (N = 68, 8-17 years old) completed an assessment 6-9 months after Hurricane Harvey, which included subjective measures of sleep, chronotype, hurricane-related post-traumatic stress symptoms, and one week of actigraphy. Prior to the hurricane, parents provided reports on emotional symptoms. Controlling for age, sex, socioeconomic status, participation time, and pre-hurricane emotional symptoms, subjective sleep disturbances and an eveningness chronotype were associated with greater post-traumatic stress, with the strongest effects observed for re-experiencing, negative cognitions/mood, and arousal/reactivity symptoms. Later sleep timing as measured by actigraphy was associated with greater arousal/reactivity symptoms and shorter sleep duration was associated with greater avoidance symptoms. As extreme weather-related events are expected to become more frequent and severe, these findings contribute to models of youth risk and resilience.


Asunto(s)
Tormentas Ciclónicas , Trastornos del Sueño-Vigilia , Trastornos por Estrés Postraumático , Humanos , Adolescente , Niño , Trastornos por Estrés Postraumático/diagnóstico , Trastornos por Estrés Postraumático/psicología , Sueño , Salud Mental , Trastornos del Sueño-Vigilia/diagnóstico , Trastornos del Sueño-Vigilia/etiología
8.
J Pediatr Psychol ; 48(3): 254-266, 2023 03 20.
Artículo en Inglés | MEDLINE | ID: mdl-36440553

RESUMEN

OBJECTIVE: The disparity of problems, impairments, and disorders among children in foster care is well-documented and spans virtually every domain of functioning. Sleep, however, has received minimal attention among this vulnerable group, which is concerning given the multitude of ways sleep affects children's development, health, and behavior. METHODS: A total of 485 foster caregivers from across the United States completed a survey including quantitative items and qualitative, open-ended questions about sleep and related health and behavior for one child (M = 6.4 years, SD = 2.2; range 4-11 years) currently in their care. RESULTS: Overall, caregivers reported developmentally appropriate child sleep and wake times; however, difficulty falling asleep (avg. 46 min per night) and staying asleep (avg. 34 min awake overnight) were common. Additionally, a high prevalence of sleep-related problems was reported including moving to someone else's bed during the night (85.8%), nightmares (51.2%), sleep terrors (26.4%), snoring (32.8%), bedwetting (31.6%), and teeth grinding (21.8%). Qualitative responses indicated emotional and behavioral challenges at bedtime, particularly elevated fear, and anxiety. CONCLUSIONS: Findings are consistent with previous work finding significant health disparities among children placed in foster care. Results highlight a need for trauma-informed, behavioral sleep interventions for this pediatric population which might serve to reduce other health disparities.


Asunto(s)
Trastornos del Inicio y del Mantenimiento del Sueño , Trastornos del Sueño-Vigilia , Niño , Humanos , Cuidadores/psicología , Trastornos del Sueño-Vigilia/epidemiología , Trastornos del Sueño-Vigilia/psicología , Sueño , Encuestas y Cuestionarios
9.
Affect Sci ; 3(2): 516, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-36048429

RESUMEN

[This corrects the article DOI: 10.1007/s42761-021-00078-2.].

10.
Affect Sci ; 3(2): 383-388, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-36046006

RESUMEN

Sleep patterns affect children's socioemotional functioning in ways that may predict long-term social problems. However, precise mechanisms through which these effects occur remain unexplored and thus unknown. Building on findings in adults, the current study examined whether changes in children's facial expressions of emotion after sleep restriction predict social problems concurrently and/or longitudinally. At time 1, 37 children (mean = 9.08 years, SD = 1.3) completed in-lab emotional assessments both when rested and after two nights of sleep restriction. Participants' parents provided reports of their child's social problems at time 1 and approximately 2 years later (time 2; mean = 11.26 years, SD = 1.6). Children who exhibited less positive facial expressions in response to positive images after sleep restriction evidenced greater social problems longitudinally, even when controlling for earlier social problems. Results suggest that inadequate sleep may undermine children's social functioning via alterations in emotional expression which may become more salient with age.

11.
J Dev Behav Pediatr ; 43(8): e525-e532, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35507424

RESUMEN

OBJECTIVE: Evidence of poor sleep health among children in foster care continues to mount, but information about whether and how sleep problems are addressed is unavailable. The goal of this study was to begin to fill these significant knowledge gaps. METHODS: Four hundred eighty-five foster caregivers from across the United States completed a survey focused on the sleep health of one child, 4 to 11 years ( M = 6.4; SD = 2.2) currently in their care. Caregivers provided quantitative and qualitative responses to questions regarding training, information, and services received in relation to their child's sleep. Caregivers also reported on the factors and strategies they perceived as most important for helping children in their care sleep well. RESULTS: Only 13% of caregivers reported receiving any information/education about sleep from agencies or case workers, whereas 55% had sought help from a health provider related to their child's sleep. Nearly half of all caregivers (46%) reported giving their child melatonin. Caregivers reported that a bedtime routine/consistency, reassurance of safety/love, and a calming environment were most important for helping their child sleep well. A recurrent theme in qualitative responses was a need to mitigate child fear/anxiety at night. CONCLUSION: Children in foster care face a range of risk factors that increase the likelihood of poor/insufficient sleep, but these findings suggest this critical aspect of health requires greater clinical and research attention. As these data were collected during the initial months of the COVID-19 pandemic, replication studies are necessary.


Asunto(s)
COVID-19 , Melatonina , Trastornos del Sueño-Vigilia , Cuidadores , Niño , Humanos , Pandemias , Trastornos del Sueño-Vigilia/epidemiología
12.
JMIR Res Protoc ; 11(5): e37002, 2022 May 16.
Artículo en Inglés | MEDLINE | ID: mdl-35576573

RESUMEN

BACKGROUND: The i♥rhythm project is a mobile health adaptation of interpersonal and social rhythm therapy designed to promote healthy sleep and behavioral rhythms among 5-8-year olds during summer for the prevention of accelerated summer weight gain. OBJECTIVE: This pilot study will examine the feasibility, acceptability, and preliminary efficacy of the i♥rhythm intervention. This will ensure that the research protocol and procedures work as desired and are acceptable to families in preparation for the fully powered randomized controlled trial. The proposed study will examine the willingness of participants to participate in the intervention and determine whether modifications to the intervention, procedures, and measures are needed before conducting a fully powered study. We will assess our ability to (1) recruit, consent, and retain participants; (2) deliver the intervention; (3) implement the study and assessment procedures; (4) assess the reliability of the proposed measures; and (5) assess the acceptability of the intervention and assessment protocol. METHODS: This study will employ a single-blinded 2-group randomized control design (treatment and no-treatment control) with randomization occurring after baseline (Time 0) and 3 additional evaluation periods (postintervention [Time 1], and 9 months [Time 2] and 12 months after intervention [Time 3]). A sample of 40 parent-child dyads will be recruited. RESULTS: This study was approved by the institutional review board of Baylor College of Medicine (H-47369). Recruitment began in March 2021. As of March 2022, data collection and recruitment are ongoing. CONCLUSIONS: This study will address the role of sleep and circadian rhythms in the prevention of accelerated summer weight gain and assess the intervention's effects on the long-term prevention of child obesity. TRIAL REGISTRATION: ClinicalTrials.gov NCT04445740; https://clinicaltrials.gov/ct2/show/NCT04445740. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/37002.

13.
Sleep Health ; 8(1): 23-27, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-34975013

RESUMEN

Sleep health is a critical but under-recognized area of concern for the more than 650,000 children served by the US child welfare system each year. While sleep is vital to optimal child health and development, it is likely harmed by the multiple adversities and traumas experienced among children and youth residing in alternative care settings (ie, kinship care, nonrelative foster care, group homes). Children residing in alternative care settings have experienced, at a minimum, the trauma of removal from a biological parent's care and would benefit from holistic, comprehensive care approaches inclusive of sleep health. Furthermore, few studies are currently available to guide practitioners and policymakers in promoting sleep health among these children. In this Call to Action, our goal is to draw attention to the sleep health of children residing in alternative care settings. We highlight the need for a more robust evidence base to address major knowledge gaps and outline concrete steps toward building future promising sleep health-promoting practices and policies supporting children residing in alternative care settings.


Asunto(s)
Protección a la Infancia , Cuidados en el Hogar de Adopción , Adolescente , Niño , Salud Infantil , Humanos , Sueño
14.
J Clin Child Adolesc Psychol ; 51(6): 892-906, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-32603239

RESUMEN

Objective: The current study aimed to examine the relation between sleep disturbance, emotion dysregulation and borderline personality features in adolescent inpatients.Method: N = 217 adolescents (67.1% female; ages 12-17) with the following racial/ethnic breakdown: 67.4% White, 3.7% Hispanic, 2.8% Asian, 1.8% African American, and 6.4% multiracial) completed self-report measures of sleep disturbance, emotion dysregulation and borderline personality symptoms at admission to, discharge from, and at 6-months-post discharge from an inpatient psychiatric hospital. Group comparison and path analyses were conducted to examine differences in sleep disturbance between those with and without borderline personality disorder and the mediating role of emotion dysregulation in the relation between sleep disturbance and borderline personality features.Results: Borderline personality features and emotion dysregulation were significantly related to indices of sleep disturbance. Path models revealed that some sleep disturbance indices at admission directly predicted levels of borderline features at discharge and at 6-months-post-discharge. However, none of the indirect pathways between sleep disturbance at admission, emotion dysregulation at discharge, and borderline features at discharge or 6-months post-discharge were significant.Conclusions: Findings are consistent with prior literature which suggest that a unique relation exists between sleep disturbance and BPD, beyond comorbid depression symptoms. However, contrary to our hypotheses, the current study did not provide empirical support for the mediating role of emotion regulation in this relation. These findings have implications for existing personality disorder and sleep interventions and suggest further research into the mechanisms underlying the relation between sleep disturbance and borderline personality pathology is necessary.


Asunto(s)
Trastorno de Personalidad Limítrofe , Regulación Emocional , Trastornos del Sueño-Vigilia , Adolescente , Humanos , Femenino , Niño , Masculino , Pacientes Internos , Cuidados Posteriores , Emociones/fisiología , Alta del Paciente , Trastorno de Personalidad Limítrofe/complicaciones , Trastorno de Personalidad Limítrofe/epidemiología , Trastorno de Personalidad Limítrofe/diagnóstico , Trastornos del Sueño-Vigilia/complicaciones , Trastornos del Sueño-Vigilia/epidemiología , Sueño
15.
J Community Psychol ; 50(1): 502-514, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-33999434

RESUMEN

The COVID-19 pandemic resulted in unprecedented disruption to everyday life, including widespread social distancing and self-quarantining aimed at reducing the virus spread. The Mental Health Checklist (MHCL) is a measure developed to assess psychological health during extended periods of isolation and confinement, and has shown strong psychometric properties in community samples and during Antarctic missions. This study validated the MHCL in a sample of 359 U.S. and U.K adults during the peak of the COVID-19 lockdown. Confirmatory factor analysis (CFA) tested model fit, and convergent validity analyses were conducted to compare the MHCL with validated measures of depression, anxiety and stress, as well as insomnia. The MHCL exhibited good model fit for most CFA indices, and showed strong convergent validity with other measures of psychological well-being. Findings suggest that the MHCL is useful for assessing mental health in a variety of environments and conditions.


Asunto(s)
COVID-19 , Adulto , Lista de Verificación , Control de Enfermedades Transmisibles , Humanos , Salud Mental , Pandemias , SARS-CoV-2
17.
Sleep Med ; 88: 104-115, 2021 12.
Artículo en Inglés | MEDLINE | ID: mdl-34742038

RESUMEN

STUDY OBJECTIVE: Adverse childhood experiences (ACEs) are associated with sleep problems in adulthood, but less research has focused on ACEs and sleep during adolescence. The goal of the present study was to explore associations between ACEs reported at ages 5 and 9 years, and sleep (ie, total sleep time (TST), social jetlag, and insomnia symptoms) at age 15. METHODS: Participants comprised 817 families from the Fragile Families and Child Wellbeing Study, a nationally representative sample of children born to unwed parents. Number of ACEs was constructed from primary-caregiver reports at ages 5 and 9, and sleep measures (ie, TST, social jetlag, and insomnia symptoms) were derived from adolescent-reported sleep behaviors at age 15. RESULTS: Adjusting for sex and race/ethnicity, ACEs at age 9 were associated with longer weekend TST (B = 0.16, 95% CI = 0.04, 0.28), more social jetlag (B = 0.17, 95% CI = 0.07, 0.27), and higher odds of trouble falling asleep ≥3 times per week (Odds Ratio = 1.24, 95% CI = 1.01, 1.53). In females only, ACEs were associated with greater school night TST (B = 0.12, 95% CI = 0.01, 0.23). Results were similar after further adjustment for symptoms of anxiety and depression. Associations among ACEs, social jetlag, and insomnia symptoms appeared strongest among Non-Hispanic Black adolescents. CONCLUSION: ACEs appear to be related to multiple aspects of sleep in adolescence. Additional research is needed to confirm these associations and examine the extent to which sleep disturbances associated with ACEs account for later health outcomes.


Asunto(s)
Experiencias Adversas de la Infancia , Trastornos del Inicio y del Mantenimiento del Sueño , Adolescente , Adulto , Ansiedad/epidemiología , Ansiedad/etiología , Niño , Preescolar , Femenino , Humanos , Síndrome Jet Lag , Sueño , Trastornos del Inicio y del Mantenimiento del Sueño/epidemiología , Trastornos del Inicio y del Mantenimiento del Sueño/etiología
18.
Child Health Care ; 50(3): 293-310, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34366538

RESUMEN

Electronic devices are routinely associated with adverse effects on sleep; however, prospective studies among healthy children are unavailable. This study examined relationships among specific and total electronic device use within the hour before bed and same-night sleep patterns among 55 pre-pubertal children (7-11 years) without medical, psychiatric or sleep disorders. Sleep was assessed via subjective reports and actigraphy for 5 weeknights and pre-bed device use was assessed via daily diary. Neither total devices use nor any single type predicted sleep parameters the same night. The extent to which pre-bed electronics use impacts sleep in healthy children requires further investigation.

19.
Int J Behav Nutr Phys Act ; 18(1): 94, 2021 07 12.
Artículo en Inglés | MEDLINE | ID: mdl-34247639

RESUMEN

OBJECTIVES AND BACKGROUND: Social demands of the school-year and summer environment may affect children's sleep patterns and circadian rhythms during these periods. The current study examined differences in children's sleep and circadian-related behaviors during the school-year and summer and explored the association between sleep and circadian parameters and change in body mass index (BMI) during these time periods. METHODS: This was a prospective observational study with 119 children ages 5 to 8 years with three sequential BMI assessments: early school-year (fall), late school-year (spring), and beginning of the following school-year in Houston, Texas, USA. Sleep midpoint, sleep duration, variability of sleep midpoint, physical activity, and light exposure were estimated using wrist-worn accelerometry during the school-year (fall) and summer. To examine the effect of sleep parameters, physical activity level, and light exposure on change in BMI, growth curve modeling was conducted controlling for age, race, sex, and chronotype. RESULTS: Children's sleep midpoint shifted later by an average of 1.5 h during summer compared to the school-year. After controlling for covariates, later sleep midpoints predicted larger increases in BMI during summer, (γ = .0004, p = .03), but not during the school-year. Sleep duration, sleep midpoint variability, physical activity levels, and sedentary behavior were not associated with change in BMI during the school-year or summer. Females tended to increase their BMI at a faster rate during summer compared to males, γ = .06, p = .049. Greater amounts of outdoor light exposure (γ = -.01, p = .02) predicted smaller increases in school-year BMI. CONCLUSIONS: Obesity prevention interventions may need to target different behaviors depending on whether children are in or out of school. Promotion of outdoor time during the school-year and earlier sleep times during the summer may be effective obesity prevention strategies during these respective times.


Asunto(s)
Instituciones Académicas , Sueño , Aumento de Peso , Índice de Masa Corporal , Niño , Preescolar , Femenino , Humanos , Masculino , Estaciones del Año , Conducta Sedentaria
20.
J Psychiatr Res ; 133: 174-180, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-33348251

RESUMEN

A common reason for admission to inpatient psychiatric units is suicidal ideation. Growing evidence of the link between sleep disturbance and suicidal ideation brings an interest in greater clarity of the pathways; this paper focused on post-traumatic stress disorder (PTSD), which carries increased risk for both sleep disturbance and suicidal ideation, as well as sex differences in those pathways. Patients were 2822 inpatients studied at admission to an inpatient psychiatric hospital and mediation analyses were used to examine pathways of interest. There was an indirect effect of PTSD on suicidal ideation through sleep disturbances for the entire sample and for men and women separately. The effect for men was larger than that for women, suggesting a stronger effect for sleep disturbance in the relationship for men. For women only, the direct effect between PTSD and suicidal ideation remained significant after mediation. Sleep disturbance plays an important role in the relationship between PTSD and suicidal ideation. Early identification of sleep disturbance in inpatients and targeted focus of sleep in conjunction with resolving trauma-related symptoms may help reduce suicidal ideation. This may be especially true of men; the indirect effect was smaller for women, suggesting that sleep disturbance should be addressed in conjunction with other PTSD symptoms likely leading to suicidal ideation.


Asunto(s)
Trastornos por Estrés Postraumático , Femenino , Hospitales , Humanos , Pacientes Internos , Masculino , Sueño , Trastornos por Estrés Postraumático/epidemiología , Ideación Suicida
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