Subjective Sleep Disturbance Research Articles

Gendered Racial Microaggressions and Black Women's Sleep Health.

Gendered racial microaggressions reflect historical and contemporary gendered racism that Black women encounter. Although gendered racial microaggressions are related to psychological outcomes, it is unclear if such experiences are related to sleep health. Moreover, the health effects of gendered racial microaggressions dimensions are rarely investigated. Using a cohort of Black women (N = 400), this study employs an intracategorical intersectional approach to (1) investigate the association between gendered racial microaggressions and sleep health, (2) assess whether gendered racial microaggressions dimensions are related to sleep health, and (3) examine whether the gendered racial microaggressions-sleep health association persists after accounting for depressive symptoms and worry. Gendered racial microaggressions were associated with poor sleep quality overall and four specific domains: subjective sleep quality, latency, disturbance, and daytime sleepiness. Two gendered racial microaggressions dimensions were especially detrimental for sleep: assumptions of beauty/sexual objectification and feeling silenced and marginalized. After accounting for mental health, the effect of gendered racial microaggressions on sleep was reduced by 47 percent. Future research implications are discussed.

The impact of perceived social support on sleep quality in a sample of patients undergoing hemodialysis in Somalia.

The main objective of the present study is to examine the relationship between perceived social support and the quality of sleep and to determine the predictors of sleep quality in a sample of patients undergoing hemodialysis (HD) in Somalia. A sample of 200 patients with end-stage renal disease (ESRD) who were undergoing hemodialysis treatment approximately two to three times a week were included. All participants were administered a sociodemographic data form, the Multidimensional Scale of Perceived Social Support (MSPSS), the Insomnia Severity Index (ISI), and the Pittsburgh Sleep Quality Index (PSQI). Patients undergoing HD for less than 3 months prior to the study date were excluded. Of the patients undergoing hemodialysis, 200 patients aged between 18 and 68 years (mean = 52.29; SD = 14.13) gave consent and participated in the study. Sixty-three subjects (31.5%) reported poor sleep quality, defined as having a total PSQI score > 5. Forty-one subjects (20.5%) reported clinically significant (moderate-to-severe) insomnia. The majority of our patients undergoing HD reported remarkably high family support, but low friends and significant other support. Poor sleep quality significantly correlated with perceived friends' support and perceived total social support. While perceived family support significantly correlated with both family income and the duration of chronic kidney disease (CKD), perceived friends' support significantly correlated with age and family income. Hierarchical regression analyses showed that perceived family support and friends' support were significant predictors of poor sleep quality. Perceived friends' support was a significant predictor of insomnia severity. Perceived family support was a significant predictor of subjective sleep quality and sleep duration. Perceived friends' support was a significant predictor of subjective sleep quality, sleep duration, sleep latency, sleep disturbance, and daytime dysfunction. Family income was a significant predictor of sleep duration. Age and gender were significant predictors of sleep efficiency. The duration of CKD and duration of HD were significant predictors of sleep disturbance. This present study has highlighted the value of family as a principal support system in Somalian culture. Understanding the impact of perceived social support on the quality of sleep in patients undergoing HD will help healthcare providers and social services to focus on and improve the social support systems of the patients as an integral part of their treatment.

Abstract P458: An Examination of the Influence of Daily Intersectional Minority Stressors on Sleep Health in Sexual and Gender Minority People of Color

Background: Sexual and gender minority (SGM; e.g., gay, lesbian, bisexual, transgender) people of color are at higher risk for poor sleep health outcomes than both White SGM adults and non-SGM people of color. Growing evidence suggests that chronic minority stressors (i.e., unique stressors attributed to one or more of an individual’s minoritized identities) are associated with short sleep duration and worse sleep quality in SGM adults. However, no study has examined the associations of daily intersectional minority stressors (i.e., attributed to any reason, such as race, sexual identity, gender) with sleep health outcomes in SGM people of color. Objective: To determine the associations of intersectional minority stressors (i.e., anticipated and experienced discrimination) with subsequent sleep health outcomes (i.e., sleep duration, sleep disturbances, and sleep-related impairment) at the day level among SGM people of color. Methods: An online sample of SGM people of color living in the United States participated in a 30-day daily diary study. Daily anticipated discrimination (i.e., expectation of encountering discrimination) and personally experienced discrimination as well as daily subjective sleep health outcomes were assessed using morning and evening electronic diaries. Daily anticipated and experienced discrimination were assessed using validated measures. Patient-Reported Outcomes Measurement Information System (PROMIS) 4-item measures were used to assess daily subjective sleep disturbances and sleep-related impairment. Continuous wrist-worn actigraphy was used to objectively assess sleep duration. Multilevel linear models (MLMs) were used to estimate the independent associations of daily intersectional minority stressors with subsequent sleep health outcomes, adjusted for demographic factors and chronic minority stressors. Results: The sample included 43 SGM people of color with a mean age of 27.0 years (+/- 7.7) of which 84% were Latinx, 47% were multi-racial, and 37% were bisexual. Results of MLMs indicated that greater report of daily experienced discrimination was positively associated with same-night sleep disturbances ( B[SE] = 0.33[0.12], p = 0.01). Further, daily anticipated discrimination was positively associated with sleep-related impairment on the following day ( B[SE] = 0.39[0.17], p = 0.02). However, daily anticipated and experienced discrimination were not associated with same-night sleep duration. Conclusions: This is the first study to simultaneously examine the influence of daily anticipated and experienced discrimination on sleep health in any population. Further research is needed to identify factors driving the link between daily intersectional minority stressors and subjective sleep health outcomes in SGM people of color. This work is crucial to inform precision sleep health interventions tailored for this population.

Owner-rated hyperactivity/impulsivity is associated with sleep efficiency in family dogs: a non-invasive EEG study

Subjective sleep disturbances are reported by humans with attention-deficit/hyperactivity disorder (ADHD). However, no consistent objective findings related to sleep disturbances led to the removal of sleep problems from ADHD diagnostic criteria. Dogs have been used as a model for human ADHD with questionnaires validated for this purpose. Also, their sleep physiology can be measured by non-invasive methods similarly to humans. In the current study, we recorded spontaneous sleep EEG in family dogs during a laboratory session. We analyzed the association of sleep macrostructure and deep sleep (NREM) slow-wave activity (SWA) with a validated owner-rated ADHD questionnaire, assessing inattention (IA), hyperactivity/impulsivity (H/I) and total (T) scores. Higher H/I and T were associated with lower sleep efficiency and longer time awake after initial drowsiness and NREM. IA showed no associations with sleep variables. Further, no association was found between ADHD scores and SWA. Our results are in line with human studies in which poor sleep quality reported by ADHD subjects is associated with some objective EEG macrostructural parameters. This suggests that natural variation in dogs’ H/I is useful to gain a deeper insight of ADHD neural mechanisms.

The effect of bright light therapy in migraine patients with sleep disturbance: A prospective, observational cohort study protocol.

Migraine is a common disabling disorder, and its substantial burden is associated with a considerable negative impact on the patients' quality of life. Moreover, aging patients with migraine have more cognitive complaints. Additionally, the elderly are more likely to have sleep disturbances, which may also predict the risk of incident dementia. Migraines are reported to be closely associated with sleep and circadian rhythms. Sleep disturbance is a well-known trigger for migraine episodes; moreover, shift work or jet lag reportedly triggers some migraines. The hypothalamus is thought to be the migraine generator; sleep and circadian activity rhythm are also controlled by the hypothalamus. Evidence suggests an influence of both sleep and circadian system on migraine. Previously, light therapy has been show to stabilize sleep architecture and further improve insomnia related to circadian rhythm disorders. However, the beneficial effect of light therapy on migraine with sleep disturbance has not yet been determined. We aim to explore the effects of light therapy for migraine combined with sleep disturbance. This project is a 2-year, randomized, double-blind, placebo-controlled clinical trial. The study design includes a 4-week monitoring period (baseline and pretest), a 4-week treatment period, and a posttest. The study participants will undergo assessments on headache frequency and severity and subjective and objective (wrist actigraphy and polysomnography) sleep disturbances, and quality of life and a series of blood tests for serum biomarkers. This study will establish evidence-based alternative medicine for the preventive effect of bright light therapy in migraine patients with sleep disturbances. Moreover, our data will be useful to comprehend the biochemical mechanism of light therapy in migraine prevention.Clinical Trial Registration: ClinicalTrials.gov, identifier NCT04890691.

Factors Associated with Quality of Life of Clinical Nurses: A Cross-Sectional Survey.

Nurses often have a heavy workload and struggle to maintain a good quality of life (QOL). The aim of this study was to explore the relationship between perceived stresses and sleep disturbance, and quality of life among Korean clinical nurses. A cross-sectional design was used to examine these relationships among 200 clinical nurses at three hospitals in South Korea. Standardized instruments were used, including the Perceived Stress Scale (PSS), Insomnia Severity Index (ISI), Eating Behavior Questionnaire (DEBQ), and the WHOQoL-BREF questionnaire. The data were analyzed using descriptive statistics, the t-test, ANOVA, the Scheffe test, Pearson's correlation coefficient, and multiple regression analysis using SPSS/WIN 24.0 program. Multiple regression analysis showed that clinical nurses who had a subjective health status (β = 0.29, p = 0.001), perceived stress (β = -0.32, p < 0.001), and sleep disturbance (β = -0.21, p = 0.001) were more likely to have a higher quality of life. The explanatory power of the regression model was statistically significant at 36.7%. Multiple regression analysis showed that clinical nurses who had better subjective health status, lower perceived stress, and fewer sleep disturbances were more likely to have a higher quality of life.

Living as a Survivor: Sleep Disturbance, Fatigue, Depressive Mood, and Cognitive Dysfunction After Breast Cancer Treatment.

Many cancer survivors endure multiple symptoms while striving to return to a normal life. Those symptoms often co-occur and exacerbate one another; however, their interplay is not fully understood. This study aimed to examine the occurrence and concurrence of sleep disturbance, fatigue, depressive mood, and cognitive dysfunction in posttreatment breast cancer survivors. The data for this descriptive analysis were collected as part of the screening for a clinical trial. The occurrences of sleep disturbance, depressive mood, and cognitive dysfunction were each determined by the cutoff scores of the Pittsburgh Sleep Quality Index, Center for Epidemiological Studies Depression Scale, and Montreal Cognitive Assessment, respectively; fatigue was determined by meeting the International Classification of Diseases cancer-related fatigue criteria. A convenience sample of 81 women completed chemotherapy or/and radiation for stage I-III breast cancer an average of 23.1 (±SD = 9.0) months ago. Sleep disturbance (85%) was most prevalent, followed by fatigue (67%), depressive mood (46%), and cognitive dysfunction (29%). Of the survivors, 80% reported 2 or more co-occurring symptoms. Worsened subjective sleep quality, sleep disturbance, and daytime dysfunction significantly increased the risk of fatigue by 5.3, 4.3, and 4.3 times (all P < .001) and depression by 2.0, 2.7, and 3.0 times (all P < .05), respectively. Sleep disturbance significantly increased the risk of survivors' fatigue and/or depressive mood after cancer treatment completion. Effectively managing sleep disturbance and improving the individual's sleep perception may subsequently reduce fatigue and/or depressive mood among breast cancer survivors. Nonpharmacological strategies for managing multiple posttreatment symptoms are needed.

Poor quality sleep is associated with greater carotid intima media thickness among otherwise healthy resident doctors.

Sleep is important for maintaining the metabolic processes in the body, and hence, disruption in sleep leads to metabolic derangement and accelerated atherosclerosis. The effect of sleep duration on subclinical atherosclerosis has been examined in several studies; however, data regarding sleep quality is lacking. The study aimed to assess the association between sleep quality and carotid intima-media thickness among healthy young doctors. This was an observational cross-sectional study among 110 healthy young resident doctors. Anthropometric data were recorded and morning fasting venous blood samples were collected to assess fasting blood sugar, lipid profile and glycosylated haemoglobin (HbA1c). Pittsburgh Sleep Quality Index and Berlin questionnaire assessed subjective sleep quality and risk for obstructive sleep apnea, respectively. Carotid ultrasonography was done to detect the intima-media thickness. Average age of the participants was 26.45 (±1.43) years, and 51.8% were male. Self-reported poor sleep quality was found in 54.5%. Carotid intima-media thickness (CIMT) was increased among 44.5% of participants. In the multivariate analysis, only poor sleep quality appeared to be associated with higher CIMT (P < 0.001, OR = 7.4; 95% CI = 2.70-20.32). When different components of sleep quality was analyzed through multivariate logistic regression, subjective sleep onset latency (>30 min), sleep efficiency (<85%) and sleep disturbance was found to be associated with the increased CIMT. Poor sleep quality, especially prolonged sleep onset latency, poor sleep efficiency, and sleep disturbance are associated with increased carotid intima-media thickness among healthy young adults.

Sleep Disturbances as a Potential Risk Factor for Deterioration of Respiratory Function in Patients with Amyotrophic Lateral Sclerosis.

Sleep disturbances are common in amyotrophic lateral sclerosis (ALS). However, previous studies have explored sleep quality at the cross-sectional level and the longitudinal variability characteristics are currently unknown. Our study aimed to longitudinally explore the effect of sleep quality on disease progression in patients with ALS. All enrolled patients with ALS were first diagnosed and completed the 6- and 12-month follow-ups. Subjective sleep disturbance was assessed using the Pittsburgh Sleep Quality Index (PSQI). Based on the PSQI score at baseline, patients with ALS were classified as poor sleepers (PSQI >5) and good sleepers (PSQI ≤5). Disease progression was assessed using the rate of disease progression, the absolute change from baseline forced vital capacity (ΔFVC) and the percentage change from baseline FVC (ΔFVC%) over the follow-up period. Sixty-three patients were included in the study, 24 (38.1%) were poor sleepers and 39 were good sleepers. The percentage of patients with poor sleep quality was 38.1% at baseline, increasing to 60.3% and 74.6% at 6- and 12-month, respectively. Compared to good sleepers, ΔFVC and ΔFVC% values were greater in poor sleepers (P < 0.001 and P = 0.001, respectively). Poor sleep quality at diagnosis is associated with rapid deterioration of respiratory function during disease progression. Sleep disturbances maybe a potential risk factor for deterioration of respiratory function in patients with ALS. The role of sleep disturbances in disease progression deserves attention, and early assessment and intervention may slow disease progression and improve life quality of patients with ALS.

Investigating the relationship of sleep quality and psychological factors among Health Professions students

BackgroundQuality sleep is critically imperative for facilitating learning and academic achievement among university students. Students are subject to several potential stressors during their academic journey which can pose far-reaching implications for their psychological well-being. A very limited number of studies have evaluated the association of sleep problems and psychological factors in health professions students. This research aimed at exploring relationship between sleep quality and psychological factors among Health Professions students. It is equally important to know the prevalence of such conditions so that necessary intervention could be set in place. MethodologyA cross-sectional descriptive research was conducted. The study targeted a group of 450 conveniently sampled health professions students at King Saud Bin Abdulaziz University for Health Sciences (KSAU-HS) to collect data pertinent to the research study. Five self-report questionnaires were utilized, including: sociodemographic and education background questionnaire (e.g., age, gender, marital status, college), the Pittsburgh Sleep Quality Index (PSQI), Patient Depression Questionnaire (PHQ-9), Perceived Stress Scale (PSS) and Zung Self-Rating Anxiety Scale (SAS). ResultsThe prevalence of poor sleep quality (PSQI score > 5) among students was 69.6% (n = 313). PSQI components with showed most disturbances included subjective sleep quality, sleep latency, sleep duration, sleep disturbance and daytime dysfunction. Findings showed that 38.9% (n = 175) of the participants were depressed, 56.7% (n = 255) of students had severe stress, and 33.1% (n = 149) had mild to moderate and severe levels of anxiety. Additionally, there were statistically significant associations between sleep quality, depression, stress and anxiety (at p < 0.01). ConclusionThe findings of the present study establish a correlation between depression, stress, anxiety and sleep quality. Academic institutions should develop interventional program directed toward managing students’ academic related sleep and psychological concerns.

Sleep Problems, Social Anxiety and Stuttering Severity in Adults Who Do and Adults Who Do Not Stutter

Background: While there is sufficient evidence that children and adolescents who stutter reported more impaired sleep compared to children and adolescents who did not stutter, findings among adults who stutter (AWS) were scarce. Furthermore, stuttering is associated with issues related to verbal communication in a social context. As such, it was conceivable that AWS reported higher scores for social anxiety, compared to adults who do not stutter (AWNS). In the present study, we tested whether AWS reported higher sleep complaints compared to AWNS. We further tested whether scores for social anxiety and stuttering independently predicted sleep disturbances. Methods: A total of 110 AWS (mean age; 28.25 years, 27.30% females) and 162 AWNS (mean age; 29.40 years, 51.20% females) completed a series of self-rating questionnaires covering sociodemographic information, sleep disturbances and social anxiety. Adults with stuttering further completed a questionnaire on stuttering. Results: Compared to AWNS, AWS reported a shorter sleep duration, a lower sleep efficiency, higher scores for drug use in terms of sleep-promoting medications (significant p-values and medium effect sizes), and an overall higher PSQI score (significant p-values and large effect size), when controlling for age and social anxiety. Next, while p-values were always significant for subjective sleep quality, sleep disturbances, and daytime functioning, when controlling for age and social anxiety, their effect sizes were trivial or small. For sleep latency, the p-value was not significant and the effect size was trivial. Among AWS, higher scores for stuttering and older age, but not social anxiety, predicted higher sleep disturbances. The association between higher sleep disturbances and higher stuttering severity was greatest among those AWS with highest scores for social anxiety. Conclusions: When compared to AWNS, AWS self-reported higher sleep disturbances, which were associated with older age, and higher scores for stuttering severity, but not with social anxiety. Adults who stutter might be routinely asked for their sleep quality.

Analysis of preoperative sleep quality and related influencing factors in cancer patients.

The sleep disturbance in cancer patients is more prevalent, and it significantly affects these patients' recovery after the operation. However, the clinical characteristics regarding sleep quality are scarce. This study aimed to evaluate the quality of preoperative sleep quality and its risk factors in different cancer patients requiring elective surgery. Cancer patients who were scheduled for elective surgery were selected. The demographic data, basic preoperative diseases, and factors related to the preoperative hospital environment were also recorded. Self-made questionnaires (such as gender, age, and personal history), and the Anxiety Self-Assessment Scale were used to assess the patient's underlying condition. The modified Pittsburgh Sleep Quality Index (PSQI) was used to evaluate the preoperative sleep status. A total of 297 patients completed the investigation. The incidence of preoperative sleep disturbance in cancer patients was 47.8%. Multiple logistic regression showed that patients with PSQI ≥ 7 were associated with females (odds ratios [95% confidence intervals]): 1.815 [1.031-3.193], p = 0.039), and the ward space was confined (3.127 [1.016-9.625], p = 0.047), which increased the possibility of sleep disturbance in cancer patients. Meanwhile, increased anxiety levels (1.323 [1.261-1.439], p < 0.001) significantly increased the likelihood of sleep disorders in cancer patients. 47.8% of sleep disturbance in cancer patients before surgery. Female patients, preoperative anxiety, and confined ward environment were independent risk factors of subjective sleep disturbance.

Post-stroke depression in Vietnamese patients is associated with decreased sleep quality and increased fatigue: a one-institution cross-sectional analysis.

This study aimed to determine the prevalence of post-stroke depression (PSD) during the first year and its associated factors, especially focusing on sleep quality and fatigue severity. A cross-sectional study was conducted among stroke patients in Vietnam's National Geriatric Hospital. Data were collected by using standardized questionnaires for interviewing and evaluating patients at the research site. Several covariables were presented including demographics, stroke-related characteristics, activities of daily living, post-stroke fatigue, and sleep quality (Pittsburgh Sleep Quality Index [PSQI] scale). PSD was assessed as an outcome variable through the Patient Health Questionnaire-9 scale. To summarize sociodemographic and clinical variables, descriptive statistics were performed. A logistic regression model was used to explore the factors related to PSD. Of 157 patients with stroke, mean age 73.1 (± 9.6),PSD was present in 60 patients (38%). The global score and all PSQI components of participants with PSD showed worse levels than those without depression. Furthermore, the prevalence of PSD was higher in patients with low IADL scores and functional disability at high levels. In the multivariate logistic regression analysis, the patients with PSDshowed higher Fatigue Severity Scale (FSS) scores (OR = 4.11; 95% CI = 1.39; 12.19) and higher scores in two domains of the PSQI scale including subjective sleep quality (OR = 3.03; 95% CI = 1.21; 7.58) and sleep disturbance (OR = 5.22; 95% CI = 1.33; 20.47). There is a significant prevalence of depression following stroke. Furthermore, post-stroke fatigue and two PSQI scale components (subjective sleep quality and sleep disturbance) were shown to be associated with PSD. This finding may guide early screening and intervention strategies to address depression following stroke.

P105 Women with greater post-traumatic stress symptom severity and less disrupted sleep have improved fear extinction recall compared to men

Abstract Sleep has been found to play a key role in fear conditioning, extinction learning and extinction recall, the paradigm modelling the development, maintenance and treatment of anxiety disorders including post-traumatic stress disorder (PTSD), which are disorders commonly associated with sleep disturbances. Previous studies examining associations between sleep and fear or extinction processes predominately focused on objectively measured sleep architecture using polysomnography, and the majority of the research has been done in healthy populations. To date, little research has focused on subjective sleep measures and particularly in clinical populations including PTSD, which often experience subjectively poor sleep. Here we investigated whether subjective sleep disturbance, sleep onset latency, wake after sleep onset or sleep efficiency were related to fear conditioning, extinction learning or extinction recall in a large sample of individuals with a range of PTSD symptom severity and healthy controls. Overall, we did not find that sleep was associated with fear conditioning extinction learning or extinction recall. However, emerging evidence highlighting the critical role of sex in PTSD risk, fear conditioning processes, as well as in the sleep-fear conditioning relationship. Exploratory analyses examining sex-specific effects found that shorter sleep onset latency and greater sleep efficiency during the previous night were associated with improved extinction recall in women with higher PTSD symptom severity. This suggests that less time falling asleep and longer time asleep while in bed may be protective against the commonly observed impaired extinction recall in PTSD in highly symptomatic women, but is not relevant in men.

Association Between Sleep Quality and Hypertension in Chinese Adults: A Cross-Sectional Analysis in the Tianning Cohort.

Poor sleep quality is becoming very common in a developed society and relates to many health disorders. However, the association between sleep quality and hypertension has not been well studied in Chinese adults. Blood pressure was measured and sleep quality was assessed by the Pittsburgh Sleep Quality Index (PSQI) for 5167 participants (mean aged 51±15 years, 41.5% males) in the Tianning Cohort. A logistic regression model was constructed to examine the association between sleep quality, as well as its components, and hypertension, adjusting for age, sex, education level, current smoking, current drinking, physical activity, obesity, glucose, and blood lipids. After multivariate adjustment, a higher score Of the PSQI was significantly associated with an increased risk of prevalent hypertension (OR=1.03, P=0.018). Compared to participants with normal sleep (the PSQI score <5), those with a poor sleep quality (the PSQI score ≥5) had a 17% increased risk of prevalent hypertension (OR=1.17, P=0.042). Three of the seven components of sleep quality, such as subjective sleep quality (OR=1.17, P=0.001), sleep latency (OR=1.11, P=0.010), and sleep disturbances (OR=1.19, P=0.004), were also significantly associated with prevalent hypertension. Poor sleep quality is increasingly prevalent in developed societies and may be related to an increased risk of hypertension in Chinese adults. The underlying causality is waiting to be studied.

The role of subjective and objective sleep disturbance for transcriptional inflammatory signaling in older adults

The role of subjective and objective sleep disturbance for transcriptional inflammatory signaling in older adults

Sex differences in the effect of subjective sleep on fear conditioning, extinction learning, and extinction recall in individuals with a range of PTSD symptom severity

Sleep has been found to play a key role in fear conditioning, extinction learning and extinction recall, and sleep disturbances are linked to many mental disorders including post-traumatic stress disorder (PTSD). Previous studies examining associations between sleep and fear or extinction processes primarily focused on objectively measured sleep architecture. Little research has so far focused on subjective sleep measures and particularly in clinical populations, which often experience subjectively poor sleep, including PTSD. Here we investigated whether subjective sleep disturbance, sleep onset latency, wake after sleep onset or sleep efficiency were related to fear conditioning, extinction learning or extinction recall in a large sample of individuals with a range of PTSD symptom severity (n = 248). Overall, we did not find that subjective sleep was associated with fear conditioning or extinction processes. However, exploratory analyses examining the moderating effect of sex found that shorter sleep onset latency and greater sleep efficiency were associated with improved extinction recall in women with higher PTSD symptom severity. This suggests that less time falling asleep and longer time asleep while in bed may be protective in highly symptomatic women against the commonly observed impaired extinction recall in PTSD. More studies are needed to explore sex-specific effects further.

The Relationship between Life Satisfaction, Internet Addiction, and Sleep Quality among Students of Isfahan University of Medical Sciences

Background: Life satisfaction is an important and effective factor in maintaining the physical and mental health of human beings. Maintaining sleep quality and internet addiction are among the factors that can affect life satisfaction. The aim of this study was to investigate the relationship between life satisfaction, internet addiction and sleep quality among students of Isfahan University of Medical Sciences.&#x0D; Methods: This questionnaire based cross-sectional study was conducted in Isfahan University of Medical Sciences. The collected data consisted of four axes: 1- demographic information, 2- life satisfaction questionnaire (SWLS), 3- Pittsburgh Sleep Quality Index (PSQI) and, 4- assessing internet use level with the Young Internet Addiction Questionnaire (IAT). Multivariate regression was used to test the relationship between SWLS, PSQI and IAT scores.&#x0D; Results: In total, 572 male and female students with mean age (3.10 ± 22.40) participated in this study. Among the subgroups of internet addiction, quick access to the internet and among the sleep quality subgroups subjective sleep quality, sleep disturbances and daytime dysfunction of life satisfaction were predicted. Also, poorer sleep quality was correlated with internet addiction. After controlling the effect of age, educational level, marital status, multivariate regression, there was a significant relationship between overall scores of life satisfaction and sleep quality (B = -0.66: -0.78 ˷ -0.53, P &lt; 0.001).&#x0D; Conclusion: Of the total number of participants in this study, 33.7% had moderate to severe internet addiction, 51.9% had poor sleep quality and 55% had some levels of life satisfaction. Also, life satisfaction was higher among people with good sleep quality and less in people who had more access to the Internet.

The Effect of Learning Burnout on Sleep Quality in Primary School Students: The Mediating Role of Mental Health.

Due to the growth of research on sleep, mental health, and learning burnout on healthy growth and its related public health significance of adolescents, this study aimed to provide a deeper understanding of the effect of mental health and learning burnout on sleep among primary school students. The sleep quality (subjective sleep quality, sleep time, sleep latency, sleep duration, sleep efficiency, sleep disturbance, and daytime dysfunction), mental health, and learning burnout (exhaustion, learning cynicism, and reduced efficacy) of 900 students of grades 3–6 in primary schools were assessed in 2020. The PSQI scores of participants were 4.19 ± 2.545, of which a number of 322 (39.03%) students had sleep disturbance (PSQI scores ≧ 5). Binary logistic regression analysis showed that screen time (OR = 1.518, 95% CI: 1.164–1.980), ranking status (OR = 0.659, 95% CI: 0.480–0.907), learning burnout (OR = 1.088, 95% CI: 1.067–1.108), and mental health (OR = 4.672, 95% CI: 1.954–11.173) were the influencing factors for sleep quality of grade 3–6 students. According to the mediation effect analyses, mental health played a mediating effect (58.73% of the total effect) on the relationship between learning burnout and sleep quality. In conclusion, primary school students in Hunan of China have prominent sleep problems, and the daytime dysfunction caused by sleep problems is the most serious. Learning burnout positively predicted poorer sleep quality, and mental health played a mediating effect on the relationship between learning burnout and sleep quality.

The effects of night-time aviation noise exposure on sleep disturbance and annoyance

This paper will report on the methodology for a new UK study of aviation night-noise exposure on health. Funded by the United Kingdom Department of Transport (DfT), the study is examining the effects of aviation night-noise exposure for a range of night-time periods on sleep disturbance and annoyance. The study involves a cross-sectional survey of 4000 participants living near eight UK airports to assess associations of aircraft noise exposure at night and subjective sleep disturbance and annoyance, as well as an objective sleep disturbance study of 170 participants, where physiological assessments of sleep disturbance will be linked to aircraft noise exposure at the participant’s home. The study will deliver exposure-response functions showing how time-averaged metrics such as LAeq,8h, LAeq,1h, N60 relate to subjective and objective sleep disturbance, and annoyance, which could be used to inform updates to the DfT’s Transport Analysis Guidance (TAG) and subsequently aviation night-noise policy in the UK. It will also explore if a relationship for objective sleep disturbance can be estimated for event-related metrics such as LAmax and sound exposure level. Effect modification will be examined; quantifying whether some population groups may be more vulnerable to the effects of aviation night-noise on sleep disturbance and annoyance.