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Artificial intelligence (AI) is widely used as an auxiliary device to diagnosis and treat mental illness, and the scope of its use is gradually expanding. It is widely used as a tool to assist diagnosis in various fields such as radiology and ophthalmology. Meanwhile, in psychiatry, the use of AI has been limited so far due to the lack of a specific objective test for diagnosis and the reliability of medical records for sensitive records such as suicide attempts. However, AI can detect people’s behavior and facial expressions changes more sensitively and more accurately find the correlation between quantitative neurophysiological test results and behavior and emotions. Nowadays, AI is useful as an auxiliary tool in diagnosing not only pediatric and adolescent mental disorders such as attention deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD), but also affective disorders and psychotic disorders. AI is also actively used to treat insomnia, ASD, ADHD, cognitive dysfunction, depression, anxiety disorders, substance use disorders, and schizophrenia. Many psychiatrists are still cautious about the use of AI. There are concerns that AI cannot replace the doctorpatient relationship, which is the most important element of traditional psychotherapy. Nevertheless, AI can diagnose psychiatric disorders more accurately and can also be useful in improving patients’ symptoms and quality of life through AI or digital treatments. I hope that psychiatrists to contribute to the treatment of human mental illness by becoming users, supervisors, and monitors of AI.
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Objectives@#The purpose is to investigate personality characteristics according to reports of suicide risk among students in the 2nd step evaluation of the Student Emotional Behavior Test conducted in one district of Daegu in 2022. @*Methods@#A total of 99 students’ school level, gender, and rate of suicide risk reporting were investigated, and sub-factors of Personality Assessment Inventory-Adolescent (PAI-A) were compared according to suicide risk reporting. We also analyzed the factors that have the most significant influence on suicide risk reporting among PAI-A. @*Results@#There was no gender difference in suicide risk reporting, but there was a significant difference at the school level. Among the PAI-A clinical scales, significant differences between groups were found in somatic complaints (SOM), anxiety (ANX), anxiety-related disorder (ADR), depression (DEP), paranoia (PAR), borderline features (BOR), suicide ideation (SUI), nonsupport (NON) and treatment rejection (RXR). Suicide risk reporting was higher in high school students than middle school, and students with high scores of NON on the PAI-A. @*Conclusions@#Reports of suicide risk show differences in internalization factors of personality traits. This means that adolescents are more likely to report suicide risk as they frequently experience inherent negative emotions such as depression and anxiety or as their interpersonal relationships become strained. In addition, it can be said that identifying social networks and forming support resources are important factors in preventing self-harming or suicidal ideation that occur during early adolescence.
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Objective@#This study aimed to explore the characteristics and factors related to changes in cognitive function in vulnerable individuals with cognitive impairment during the coronavirus disease 2019 (COVID-19) pandemic. @*Methods@#Among patients who visited a local university hospital with subjective cognitive complaints, those who had been tested for cognitive function at least once after the onset of COVID-19 and tested regularly at least three times within the last 5 years were included (1st, the initial screening; 2nd, the test immediately before the COVID-19 pandemic; 3rd, the most recent test after the pandemic). Finally, 108 patients were included in this study. They were divided into groups according to whether the Clinical Dementia Rating (CDR) was maintained/improved and deteriorated. We investigated the characteristics of the changes in cognitive function and related factors during COVID-19. @*Results@#When comparing CDR changes before and after COVID-19, there was no significant difference between the two groups (p=0.317). Alternatively, the main effect of the time when the test was conducted was significant (p<0.001). There was also a significant difference in the interaction between the groups and time. When the effect of the interaction was analyzed, the CDR score of the maintained/ improved group significantly decreased before COVID-19 (1st–2nd) (p=0.045). After COVID-19 (2nd–3rd), the CDR score of the deteriorated group was significantly higher than that of the maintained/improved group (p<0.001). Mini-Mental State Examination recall memory and changes in activity during COVID-19 were significantly associated with CDR deterioration. @*Conclusion@#Memory dysfunction and decreased activity during the COVID-19 pandemic are strongly related to the deterioration of cognitive impairment.
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Objective@#The primary objective of this study was to investigate the effect of methylphenidate (MPH) on height, weight, and body mass index (BMI) in drug-naive children and adolescents with attention deficit hyperactivity disorder (ADHD) over 24 months. The secondary objective was to investigate whether the age of MPH initiation and sex act as risk factors for growth retardation. @*Methods@#A total of 82 patients with ADHD were included. Weight, height, and BMI were measured at baseline and every 6 months up to 24 months. Weight, height, and BMI data were converted to z-scores and analyzed using two-way repeated-measures ANOVA and multiple linear regression. @*Results@#The z-score of height, weight and BMI decreased from the baseline values. The z-scores of height were at baseline 0.002; 6 months -0.100; 12 months -0.159; 18 months -0.159; 24 months -0.186. The z-scores of weight were at baseline 0.104; 6 months -0.155; 12 months -0.256; 18 months -0.278; 24 months -0.301. Here were no age and sex differences of height, weight, and BMI. @*Conclusion@#The use of MPH was associated with attenuation of weight and height gain rates in children and adolescents with ADHD.
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Objectives@#:Adolescents cigarette smoking is a major public health concern, because it is highly associated with physical and mental development of adolescents. This study examines the psychosocial variables affecting smoking behaviors and smoking cessation plan. @*Methods@#:A total of 74 (35 smokers and 40 non-smokers) students in Daegu metropolitan city were included in this study. 35 smokers visited smoking cessation center between September 2019 and November 2019. Subjects were asked to complete a self-reported questionnaire evaluating smoking status, self-esteem, parent-adolescent communication, parent and peer attachment, and peer relationship quality. The independent t-test was conducted to determine the difference in psychological variables between smoker and non-smoker. Additionally, logistic regression analysis was done to identify the factors that affect smoking cessation plan and willingness. @*Results@#:The majority of adolescent smoker was male (94.3%) and middle school students (82.9%). Twenty-four smokers (68.5%) started smoking at sixth and seventh grade. The smoking amount and smoking days were related to plan and willingness of smoking cessation in logistic regression analysis and the number of friends who smoke was related to smoking cessation plan. The openness of communication in smoking students was significantly higher than that of non-smoking students. @*Conclusion@#:Our findings indicate that the environmental factors such as peer or parental smoking is important in adolescents smoking. In addition to individual factors such as smoking amount and days, openness of communication related with impulsivity and susceptibility in peer pressure can affect plan or willingness of smoking cessation.
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Objectives@#:The purpose of this study was to identify the change in the reasons for referrals before and after the COVID-19 outbreak among students who were referred to the one hospital-linked Wee center in Dalseo-gu, Daegu. @*Methods@#:324 students who were referred to one hospital-linked Wee center for personal counseling from January 1, 2019 to December 31 were included. In the initial session of individual counseling, 3 of the chief reasons among 27 emotional and/or behavioral problems were indicated. This reason was divided into before and after COVID-19 to determine whether there is a difference, and whether there is a difference between before and after COVID-19 depending on the school level. @*Results@#:The most frequent emotional and/or behavioral problem was ‘interpersonal problems’ in both pre- COVID-19 and post- COVID-19 groups. In post- COVID-19 group, ‘anxiety’ was significantly increased, whereas ‘conduct problems,’ ‘impulsivity’ and ‘inattention’ were significantly decreased. In elementary students group, only ‘conduct problems’ was significantly decreased after COVID-19 and the same result was shown in middle and high school students group. @*Conclusions@#:The study showed that after COVID-19 pandemics in Daegu the difference of students’ problems was noted, and internalizing problems seem to increase rather than externalizing problems. This result calls upon schools to plan for students’ further mental health care measures.
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Objective@#Since the risk of suicide cannot be predicted by clinical symptoms alone, and suicide is known to have a genetic component, the discovery of genetic markers that can predict the lethality of suicide attempts is a clinically important topic. There have been many studies aiming to determine whether the rs6265 polymorphism of the BDNF gene is associated with suicidality; however, the results have been mixed, and there have been few studies investigating the relationship between this polymorphism and suicide attempt lethality. @*Methods@#We assessed suicide lethality in 258 individuals who had attempted suicide using the relative risk ratio (RRR) scale and by genotyping the rs6265 polymorphism of the BDNF gene. @*Results@#The RRR score for suicide attempts was higher in subjects with Met/Val and Val/Val genotypes than in that with a Met/Met genotype (p=0.015). The RRR score for suicide attempts was also higher in Val allele carriers (Met/Val+Val/Val) than in Met/Met homozygotes (p=0.006). @*Conclusion@#This study demonstrates the possibility that the rs6265 polymorphism of the BDNF gene could be used as a genetic marker to predict the lethality of suicide attempts, but more replication studies are needed for the application of this result in clinical practice.
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Active and prompt scale-up screening tests are essential to efficiently control the coronavirus disease 2019 (COVID-19) outbreak. The goal of this work was to identify shortcomings in the conventional screening system (CSS) implemented in the beginning of the outbreak. To overcome these shortcomings, we then introduced a novel, independently developed system called the Yeungnam University type drive-through (YU-Thru), and distributed it nationwide in Korea. This system is similar to the drive-throughs utilized by fast food restaurants. YU-Thru system has shortened the time taken to test a single person to 2–4 minutes, by completely eliminating the time required to clean and ventilate the specimen collection room. This time requirement was a major drawback of the CSS. YU-Thru system also reduced the risk of subjects and medical staff infecting one another by using a separate and closed examination system. On average, 50 to 60 tests were conducted per day when using the CSS, while now up to 350 tests per day are conducted with the YU-Thru system. We believe that the YU-Thru system has made an important contribution to the rapid detection of COVID-19 in Daegu, South Korea. Here, we will describe the YU-Thru system in detail so that other countries experiencing COVID-19 outbreaks can take advantage of this system.
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Objectives@#:Suicide attempt history is one of the major suicide risk factors and the suicide mortality rate increases with the number of suicide attempts. This study aimed to compare demographic and clinical factors between first and multiple suicide attempters and investigate risk factors for multiple suicide attempts. @*Methods@#:Participants were 537 patients who were admitted to an emergency room after attempting suicide and divided into two groups (393 first attempters and 144 multiple attempters). Demographic factors, clinical characteristics, and suicide-related characteristics were compared between the two groups. Variables with a p-value lower than 0.1 were included in a multivariate logistic regression analysis. Logistic regression models were considered to identify independent risk factors for multiple suicide attempts. The significance level was set to 0.05. @*Results@#:Among demographic factors, the two groups differed in age, sex, education, occupation, and marital and cohabitation status. Multiple attempters were more likely to have a mental disorder, current use of psychiatric medication, interpersonal and psychiatric motivation for suicide, current suicidal thoughts, help seeking behavior, awareness of suicide, and agreement with psychiatric follow up. In the regression analysis, unmarried status, mental disorder, interpersonal or psychiatric stress, help seeking behavior, and antidepressant use emerged as significant risk factors of multiple suicide attempts. @*Conclusion@#:The study’s findings suggested that there are differences in the demographic and clinical characteristics of first and multiple suicide attempters. Specific strategies that consider unmarried status, mental disorder, interpersonal or psychiatric stress, help seeking behavior, and antidepressant use may be valuable for future suicide prevention.
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Objectives@#:Suicide attempt history is one of the major suicide risk factors and the suicide mortality rate increases with the number of suicide attempts. This study aimed to compare demographic and clinical factors between first and multiple suicide attempters and investigate risk factors for multiple suicide attempts. @*Methods@#:Participants were 537 patients who were admitted to an emergency room after attempting suicide and divided into two groups (393 first attempters and 144 multiple attempters). Demographic factors, clinical characteristics, and suicide-related characteristics were compared between the two groups. Variables with a p-value lower than 0.1 were included in a multivariate logistic regression analysis. Logistic regression models were considered to identify independent risk factors for multiple suicide attempts. The significance level was set to 0.05. @*Results@#:Among demographic factors, the two groups differed in age, sex, education, occupation, and marital and cohabitation status. Multiple attempters were more likely to have a mental disorder, current use of psychiatric medication, interpersonal and psychiatric motivation for suicide, current suicidal thoughts, help seeking behavior, awareness of suicide, and agreement with psychiatric follow up. In the regression analysis, unmarried status, mental disorder, interpersonal or psychiatric stress, help seeking behavior, and antidepressant use emerged as significant risk factors of multiple suicide attempts. @*Conclusion@#:The study’s findings suggested that there are differences in the demographic and clinical characteristics of first and multiple suicide attempters. Specific strategies that consider unmarried status, mental disorder, interpersonal or psychiatric stress, help seeking behavior, and antidepressant use may be valuable for future suicide prevention.
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BACKGROUND: We evaluated the effects of neurofeedback as an augmentation treatment on depressive symptoms and functional recovery in patients with treatment-resistant depression (TRD). METHODS: We included 24 adult patients with TRD and 12 healthy adults. 24 TRD patients were assigned to the neurofeedback augmentation group (n = 12) and the medication-only (treatment as usual [TAU]) group (n = 12). The neurofeedback augmentation group underwent combined therapy comprising medication and 12–24 sessions of neurofeedback training for 12 weeks. To assess the serum levels of brain-derived neurotrophic factor (BDNF) in both groups, pre- and post-treatment blood samples were obtained. Patients were evaluated using the Hamilton Depression Rating Scale (HAM-D), Beck Depression Inventory (BDI), Clinical Global Impression-Severity (CGI-S), 5-level version of European Quality of Life Questionnaire 5-Dimensional Classification (EQ-5D-5L), and Sheehan Disability Scale (SDS) at baseline, and at the 1-, 4-, and 12-week. RESULTS: From baseline to week 12, neurofeedback training reduced mean scores on HAM-D, BDI-II, CGI-S, and SDS, and increased mean EQ-5D-5L tariff score. In the neurofeedback augmentation group, the response and remission rates were 58.3% and 50.0%, respectively, at week 12. Changes in HAM-D, EQ-5D-5L tariff score, and SDS were significantly larger in the neurofeedback group than in the medication-only (TAU) group. No significant difference in BDNF level was found pre- vs. post-treatment in any of the groups. CONCLUSION: Despite the small sample size, these results suggest that neurofeedback treatment may be effective as an augmentation treatment, not only for depressive symptoms, but also for functional recovery, in patients with TRD. TRIAL REGISTRATION: Clinical Research Information Service Identifier: KCT0004183 ClinicalTrials.gov Identifier: NCT04078438
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Adulto , Humanos , Factor Neurotrófico Derivado del Encéfalo , Clasificación , Depresión , Trastorno Depresivo Mayor , Servicios de Información , Neurorretroalimentación , Proyectos Piloto , Calidad de Vida , Tamaño de la MuestraRESUMEN
BACKGROUND: The suicide rate in Korea has been the highest among the Organization for Economic Cooperation and Development countries since 2003. However, there is a lack of in-depth data regarding the characteristics of suicide attempters. Understanding the intent of suicide attempters will help improve the effectiveness of suicide prevention strategies. Therefore, to provide a resource for developing the necessary interventions, this study aimed to examine the differences in suicide-related and clinical variables according to the strength of suicidal intent. METHODS: The subjects were 328 suicide attempters admitted to emergency departments at 5 university hospitals in Daegu-Gyeongbuk province between 2011 and 2014. We used various scales to examine suicide-related and clinical variables and a structured questionnaire to explore psychosocial characteristics. We evaluated suicidal intent using the Pierce Suicide Intent Scale and a clinician-rated scale that measured suicidal authenticity. RESULTS: Individuals with high suicidal intent were significantly older, had higher Hamilton Depression Rating Scale (HDRS) scores, higher rates of premeditation, and sustained suicidal ideation. Furthermore, suicide methods, timing, and psychiatric treatment histories differed by the strength of subjects' suicidal intent. Moreover, multiple logistic regression showed that depressed mood as a reason for attempting suicide, premeditation, and higher HDRS scores were significantly associated with higher suicidal intent. CONCLUSION: Depression, premeditation, older age, and sustained suicidal ideation were characteristics of individuals with high suicidal intent, and it is necessary to evaluate and monitor these factors to prevent repeated suicide attempts.
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Depresión , Urgencias Médicas , Servicio de Urgencia en Hospital , Hospitales Universitarios , Intención , Corea (Geográfico) , Modelos Logísticos , Organización para la Cooperación y el Desarrollo Económico , Ideación Suicida , Suicidio , Intento de Suicidio , Pesos y MedidasRESUMEN
OBJECTIVE: This study was conducted to identify differences between people with narcolepsy and the normal control of delta and theta activity using electroencephalogram (EEG) spectrum analysis of nocturnal polysomnography (PSG). METHODS: Seven narcolepsy patients and seven age-sex matched normal controls underwent PSG and multiple sleep latency tests. Participants' non-rapid eye movement (NREM) sleep EEGs in PSG was analyzed using a Fast Fourier Transform technique. RESULTS: While NREM delta activity of people with narcolepsy declined during the first three periods of NREM, there was no change during the 4th period of NREM. The increase in NREM theta activity also lasted until the 3rd period of NREM but did not occur during the 4th period of NREM. In comparing sleep parameters, REM sleep latency in the narcolepsy group was significantly shorter than in controls. CONCLUSION: These results suggest that people with narcolepsy are likely to have a delta and theta activity-related sleep disturbance mechanism in NREM sleep.
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Humanos , Electroencefalografía , Movimientos Oculares , Análisis de Fourier , Narcolepsia , Polisomnografía , Sueño REM , Análisis EspectralRESUMEN
Attention-deficit hyperactivity disorder (ADHD) is a common psychiatric disorder that can affect individuals across their lifespan. It is characterized by the core symptoms of inattention, impulsivity and hyperactivity. ADHD develops as a result of the complex interplay between genetic and environmental factors. Children and adults with ADHD usually suffer concomitantly from other psychiatric comorbidities, including both externalizing and internalizing disorders. It is associated with functional impairment and poor long-term outcomes. This review aims to summarize the key findings from recent research into ADHD and its prevalence, core symptoms, cause and comorbidities from childhood to adulthood.
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Adulto , Niño , Humanos , Comorbilidad , Conducta Impulsiva , PrevalenciaRESUMEN
Changes in core body temperature are closely related to initiation and maintenance of sleep, and are influenced by various factors such as air temperature, room temperature, clothing, human activities, and medications. These factors are closely related to sleep fragments, insomnia and other sleep disorders. Understanding the effect of the temperature related to human surroundings on the core body temperature and sleep, will be useful for understanding the physiology of sleep and to treat sleep disorders.
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Humanos , Temperatura Corporal , Ritmo Circadiano , Vestuario , Actividades Humanas , Fisiología , Trastornos del Sueño-Vigilia , Trastornos del Inicio y del Mantenimiento del SueñoRESUMEN
OBJECTIVES: This study compares single and repeat suicide attempts, and evaluates the risk factors associated with suicide re-attempts. METHODS: Two hundred and seventy-nine patients admitted to emergency rooms in four university hospitals in Daegu after suicide attempt were included in this study (n=179 single suicide attempters, n=100 repeated attempters). A structured interview focused on demographic, clinical, suicidal and psychological characteristics was administered to these patients after recovery from physical and psychological impairments. RESULTS: Individuals with repeated suicide attempts were younger, more highly educated, had more history of psychiatric treatments, took more psychiatric medications, and had more sustained suicidal ideations, bipolar disorders and personality disorders than individuals with single suicide attempt. Individuals with repeated suicide attempts marked significantly higher scores in the Childhood Trauma Questionnaire, Patient Health Questionnaire-9, and the Barratt Impulsiveness Scale. Multivariate logistic regression showed that below the sixties, history of psychiatric treatments, personality disorders, substance use disorders and sustained suicidal ideations were significantly associated with predictive factors for subsequent suicide attempt. CONCLUSION: Our findings suggest that repeat suicide attempters have different clinical characteristics from single suicide attempters, and some risk factors raise the risk of further suicide attempts. It is necessary for suicidal prevention program planners to be aware of these risk factors, especially for first-time suicide attempters.
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Humanos , Trastorno Bipolar , Urgencias Médicas , Servicio de Urgencia en Hospital , Hospitales Universitarios , Modelos Logísticos , Trastornos de la Personalidad , Factores de Riesgo , Trastornos Relacionados con Sustancias , Ideación Suicida , SuicidioRESUMEN
OBJECTIVE: The primary aim of this study was to investigate the acute impact of methylphenidate (MPH) on sleep parameters in attention-deficit/hyperactivity disorder (ADHD) children. The second aim was to investigate the different effects of intermediate- and longacting MPH on sleep parameters. The third aim was to test the different effects of dose and age on sleep parameters. METHODS: Ninety-three ADHD children were enrolled and randomized to two different MPH preparations. Baseline and daily sleep diaries were evaluated for four weeks after taking medication. Weekday and weekend bedtimes, wake-up times, sleep latencies and total sleep times were compared by weeks. RESULTS: After taking MPH, there was a significant delay in bedtimes and a significant reduction of total sleep time (TST) both on weekdays and at weekends. There was also a significant delay in wake-up time on weekdays. However, the difference was applied to younger age group children only. There was no difference in changes of TST between metadate-CD and OROS-MPH. There also was no difference in changes of TST with different doses of MPH. CONCLUSION: MPH had negative impacts on sleep among young ADHD children, but different preparations and doses did not affect the result.
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Niño , Humanos , Metilfenidato , FenazinasRESUMEN
Childhood narcolepsy is one of the underdiagnosed diseases even the first symptoms often appear in childhood. Making diagnosis through history taking is not always easy because the symptoms of childhood narcolepsy are different from those of adulthood. Diagnostic laboratory tests such as sleep studies, tests for human leukocyte antigens, cerebrospinal fluid hypocretin measurement should be considered when the child has excessive daytime sleepiness without cataplexy. Treatment approach should be start as early as possible to avoid secondary academic, emotional difficulties. Both pharmacological and non-pharmacological management, and close cooperation between parents and school teachers should be maintained. In the near future, childhood narcolepsy can be a key to understand the pathogenesis of narcolepsy.
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Niño , Humanos , Cataplejía , Antígenos HLA , Péptidos y Proteínas de Señalización Intracelular , Narcolepsia , Neuropéptidos , Padres , OrexinasRESUMEN
OBJECTIVES: The daily activities and performance of the working population can be threatened by sleep disturbances, including insomnia. This study evaluated the sleep patterns, sleep problems, daytime sleepiness, and lost productivity time (LPT) resulting from sleep quality and sleep duration issues among workers. METHODS: The Pittsburgh Sleep Quality Index (PSQI), the Epworth Sleepiness Scale (ESS), and the Health and Work Performance Questionnaire (HPQ) were completed by 653 workers in an urban area. Statistical analyses were performed using independent t-tests. RESULTS: The average sleep duration among the subjects was 6 h 37 min. While 19.6% of the subjects complained of poor sleep quality, 53.4% were affected during the day by insomnia. The estimated annual cost of LPT due to presenteeism (Won13,892,545 vs. Won11,840,140 ; p=0.033) and the total annual cost of LPT (Won14,040,968 vs. Won11,961,302 ; p=0.032) were higher in poor sleepers than in good sleepers. Furthermore, workers with a shorter sleep duration had a higher annual LPT due to presenteeism (747.83 vs. 648.57 h ; p=0.046) and a higher total annual LPT (754.48 vs. 657.99 h ; p=0.049) than workers with a longer sleep duration. CONCLUSION: Sleep deprivation among workers caused 1 h 51 min LPT per week. This suggests that sleep disturbance affects workers' performance in an organization, as well as in terms of individual health.
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Eficiencia , Corea (Geográfico) , Salud Laboral , Encuestas y Cuestionarios , Privación de Sueño , Trastornos del Inicio y del Mantenimiento del SueñoRESUMEN
OBJECTIVES: The daily activities and performance of the working population can be threatened by sleep disturbances, including insomnia. This study evaluated the sleep patterns, sleep problems, daytime sleepiness, and lost productivity time (LPT) resulting from sleep quality and sleep duration issues among workers. METHODS: The Pittsburgh Sleep Quality Index (PSQI), the Epworth Sleepiness Scale (ESS), and the Health and Work Performance Questionnaire (HPQ) were completed by 653 workers in an urban area. Statistical analyses were performed using independent t-tests. RESULTS: The average sleep duration among the subjects was 6 h 37 min. While 19.6% of the subjects complained of poor sleep quality, 53.4% were affected during the day by insomnia. The estimated annual cost of LPT due to presenteeism (Won13,892,545 vs. Won11,840,140 ; p=0.033) and the total annual cost of LPT (Won14,040,968 vs. Won11,961,302 ; p=0.032) were higher in poor sleepers than in good sleepers. Furthermore, workers with a shorter sleep duration had a higher annual LPT due to presenteeism (747.83 vs. 648.57 h ; p=0.046) and a higher total annual LPT (754.48 vs. 657.99 h ; p=0.049) than workers with a longer sleep duration. CONCLUSION: Sleep deprivation among workers caused 1 h 51 min LPT per week. This suggests that sleep disturbance affects workers' performance in an organization, as well as in terms of individual health.