Takashi Tatsuse

University of Toyama | U Toyama · Department of Welfare Promotion and Epidemiology

Objectives: To explore differences in work performance based on the influence of sleep, work environment, and work-life balance. Methods: The datasets for this study were obtained from the Japan Civil Servant Study, which included 3478 participants (2199 men and 1279 women). Results: Belonging to the younger generation, high levels of support...

Objectives: Sickness absence is increasingly affecting society at different levels. This study explores how work, family, and personal health-related characteristics will contribute to socioeconomic status (SES) differences in future long sickness absence (7 days or more) with respect to sex differences. Methods: A total of 1562 civil servants w...

Work is a major social determinant of health. We conducted a cross-sectional study to explore the association between coronary heart disease (CHD), its risk factors, and the working environment among Japanese male workers. We collected data from 10,572 workers (mean age 49.9) who underwent annual medical check-ups in Toyama, Japan, in 2016. This st...

Objective Social activities play an important role in the maintenance of health and well-being of the older adults. The aim of this study was to identify characteristics of the rural older adults who do not participate by type of social activities.Methods This survey examined 1,537 older adults randomly selected at a sampling rate of 0.5% from amon...

Background: Pathological gaming (PG) has emerged as one of the major public health concerns worldwide. We aimed to assess PG and its associated factors among elementary school children in Japan. Methods: We conducted a school-based observational study in Toyama, Japan in 2018. Totally, 13,413 children in the 4th-6th grades (mean age, 10.5 years) pa...

Background This study aimed to make future projections of the nationwide prevalence of dementia in Japan using the prevalence of dementia from the Toyama Dementia Survey and population projections. Methods We performed linear regression analysis using the prevalence of dementia by sex and age in 1985, 1990, 1996, 2001, and 2014 from the Toyama Dem...

Long sickness absence is more common among low socioeconomic status (SES) groups than high SES groups. This study aimed to evaluate whether work and family characteristics contribute to SES and sex differences in long sickness absence (7 days or more). The participants were 3080 civil servants working for a local Japanese government. In both sexes,...

Background Walkable neighbourhoods promote physical activity and prevent obesity, but there is limited evidence to inform urban planning strategies for public health within the context of rural Japan. This study describes associations between neighbourhood walkability and obesity in Toyama, a regional municipality in Japan. Methods A cross-section...

Background This study aims to clarify the association between marital status and dementia in Japan, adjusting for socioeconomic, lifestyle, and lifestyle-related disease factors. Methods Data from the Japanese Toyama Dementia Survey were used. Individuals aged ≥65 years living in Toyama Prefecture were randomly selected, and 1171 participants were...

Objective: To explore national and socioeconomic differences in overall job satisfaction, we examined whether those differences can be explained by what job-related factors. Methods: Our datasets for this study are from the Whitehall II study and the Japan Civil Servant Study. Of the participants who were 5540 cases, with 3250 people from Great...

Background Mental health problems among workers have become an issue in Japan. The working environment for civil servants is becoming excessively stressful, and there is a need to prevent the onset of depression. In addition to stress at the workplace and at home, social capital has been reported as a factor associated with depression. This study e...

Background We aimed to clarify the predisposing factors for adolescent constipation in a longitudinal study, because while factors associated with childhood constipation have been reported, prospective studies on the incidence of constipation are lacking. Methods We enrolled 5540 adolescents aged 12 to 13 years from the Toyama Birth Cohort Study—a...

Background Despite the fact that there are parents who do not take children with untreated dental caries to a dental clinic, few studies have been conducted to identify the responsible underlying social and family factors. The aim of this study was to investigate whether socioeconomic status and lifestyle factors are associated with dental neglect...

Background: Little is known about pathological Internet use (PIU) and online risky behaviors among elementary school children. We aimed to investigate the prevalence and factors associated with PIU and online risky behaviors. Methods: A school-based cross-sectional study was conducted in Toyama, Japan in 2018. The study included 13,413 children in...

Background: Age-related hearing loss reduces the quality of life in older adults. Low socioeconomic status (SES) has been reported as a risk factor for hearing loss, although this has not been verified in Japan. This study aimed to assess the association between low SES and hearing loss, excluding people with dementia, in Japan. Methods: Data fr...

Background We aimed to clarify the predisposing factors for adolescent constipation in a longitudinal study, because while factors associated with childhood constipation have been reported, prospective studies on the incidence of constipation are lacking. Methods We enrolled 5,540 adolescents aged 12 to 13 years from the Toyama Birth Cohort Study—...

High level of work-family conflict (WFC) is an important risk factor for stress-related health outcomes. However, many studies are cross-sectional studies. In this study, we aimed to clarify how changes in WFC levels over a period 5 years can affect workers' mental and physical health, and to clarify whether there are gender differences of them. Th...

Background: Early consultation is important to delay the onset of dementia. The present study aimed to explore the reasons for delaying a consultation of dementia while focusing on the differences in the perception of cognitive decline between older adults and their family members. Methods: A group of 663 older adults aged ≥65 years and living w...

Background Health and education are closely linked. However, few studies have explored the correlates of children’s academic performance in Japan. We aimed to investigate comprehensively the associations of low academic performance among school children with lifestyles, parental smoke, and socioeconomic status. Methods In 2016, children aged 6 to...

Background: Individual lifestyle factors are associated with dental caries in children. The aim of this study was to comprehensively investigate the associations between dental caries in elementary school children and the lifestyle factors in them and their parents. Methods: From five elementary schools in Takaoka city, Toyama prefecture, Japan,...

Background The prevalence of periodontal disease is increasing among elderly individuals in Japan. Reports on the risk factors for tooth loss have included socioeconomic status (SES); however, few studies have addressed the association between remaining teeth and SES by examining whether education and occupation have a synergistic effect on tooth l...

Background Although parents seek the best for their children, nutrition education for parents has attracted little attention to improve their children’s dietary habits. To address this gap, this study aimed to examine the relationship between parental lifestyle factors and children’s dietary habits. Methods We used data from the questionnaire surve...

Objective: The purpose of this study was to determine the factors that contributed to the development and persistence of depression over the course of 1 year in work environment. Methods: The subjects were 992 Japanese civil servants aged between 19 and 65 years. Baseline data and linked with data collected at 1-year follow up. Results: After...

Background: Childhood constipation is prevalent and negatively affects quality of life. Although psychological stress and family environment have been identified as risk factors, few epidemiological studies have examined this issue. We aimed to clarify associations of psychological stress and family environment with childhood constipation in a larg...

Background: The association between low socioeconomic status (SES) and dementia is reportedly mediated by lifestyle-related diseases (i.e., diabetes) in European countries and the United States; however, in Japan, the link between low SES and dementia has not been investigated. This study evaluated the possibility of a mediating role of lifestyle-...

Background: Prolonged screen time (ST), which includes TV viewing and gaming on smartphones and computers, is linked to poor health. Our aim was to explore the associations between school children with prolonged ST and parental internet use (IU) and lifestyles in Japan. Methods: Children aged 6 to 13 years from the Super Shokuiku School Project,...

Background: To investigate the relationship between lifestyle and overall health in high school children. Methods: Subjects were from the Toyama Birth Cohort Study, a prospective, longitudinal study of children who were born between 1989 and 1990, lived in Toyama Prefecture, Japan, at the time of the survey. This investigation used data from Pha...

Background: Constipation is prevalent health disorder and it has been bothering many pediatricians as well as people suffering from constipation. There have been few epidemiological surveys about constipation in Japanese children. This study aims to evaluate the prevalence of non-daily bowel movements (BM) and irregular BM among children and to id...

Objectives: Little is known about which component, such as social contact of social networks is associated with mental health or whether such an association can be observed across countries. This study examined whether the association between frequent social contact and mental health differs by composition (relatives or friends) and whether the as...

Purposes The increasing number of dementia is of major public health concern. This study aims to calculate the projected number and prevalence of dementia in Japan, using data from the Toyama Dementia Survey. Methods The Toyama Dementia Survey was conducted 6 times in 1983, 1985, 1990, 1996, 2001, and 2014. In the 2014 survey, the subjects were ra...

Introduction: Socioeconomic differences in smoking over time and across national contexts are poorly understood. We assessed the magnitude of relative and absolute social class differences in smoking in cohorts from Britain, Finland and Japan over 5-7 years. Methods: The British Whitehall II study (n=4350), Finnish Helsinki Health Study (n=6328)...

Objectives The aim of this study was to examine whether leisure time physical activity contributes to subsequent physical and mental health functioning among midlife employees. The associations were tested in three occupational cohorts from Finland, Britain and Japan. Design Cohort study. Setting Finland, Britain and Japan. Participants Prospective...

Few studies have examined trends in engagement in outdoor physical activity as children grow and whether changes in physical activity at different ages affect children's health. This study determined the preference for and frequency of physical activity among Japanese children from ages 6 to 12 years and investigated the effect of physical activity...

Background Although the sibling relationship is a unique one, the effects of the number and types of siblings on mental health among adolescents have not been reported.Methods Japanese children (9276 total; 4654 males and 4622 females), all 12 years old, and from the Japanese Toyama Birth Cohort Study, were followed up until 2002.Subjects’ self-rep...

Objectives: As the number of dual-earner couples in Japan has increased, work-life balance has become important. This study aimed to examine the factors that contribute to work-family conflict. Methods: The participants included 3,594 (2,332 men and 1,262 women) civil servants aged 20-59 working for local government on the west coast of Japan. L...

Objectives This study aimed to evaluate (i) whether work, family, behavioral and sleep quality characteristics differ among individuals with different time in bed (TIB) and (ii) whether and how much the U-shaped associations between TIB and health can be explained by these characteristics. Methods Participants were 3510 employees (2371 males and 1...

This study examines (1) whether there are employment grade and gender differences in job dissatisfaction and (2) whether work, family, and personality characteristics explain grade and gender differences in job dissatisfaction. The participants were 3,812 civil servants, aged 20-65, working at a local government in Japan. In both males and females,...

Background: Family history can be a useful screening tool in the assessment and management of the risk for noncommunicable disease. However, no data have yet been reported on family history of hypertension and its effect on children's overweight. Methods: A total of 7249 Japanese children enrolled in the Toyama Birth Cohort Study were followed u...

Background Occupational class differences in body mass index (BMI) have been systematically reported in developed countries, but the studies have mainly focused on white populations consuming a Westernized diet. We compared occupational class differences in BMI and BMI change in Japan and Finland. Methods The baseline surveys were conducted during...

Regression coefficients of height by occupational class in Japan and Finland.

Distributions of participants and mean BMI by background characteristics in Japan and Finland.

Purpose: Research on the association between family-to-work and work-to-family conflicts and sleep problems is sparse and mostly cross-sectional. We examined these associations prospectively in three occupational cohorts. Methods: Data were derived from the Finnish Helsinki Health Study (n = 3,881), the British Whitehall II Study (n = 3,998), an...

Although studies on the association of job dissatisfaction with mental health have been conducted in the past, few studies have dealt with the complicated links connecting job stress, job dissatisfaction, and stress-related illness. This study seeks to determine how job dissatisfaction is linked to common mental health issues. This study surveyed 3...

Introduction Some of common non-communicable diseases deteriorate sleep quality, which worsens the disease itself. This study aims to evaluate (1) whether common non-communicable diseases are associated with poor sleep quality and (2) whether the combination of such diseases increase the possibility of poor sleep quality. Methods The subjects were...

Introduction Under slow economic growth, the maintenance of job satisfaction is important. This study aims to evaluate (1) whether psychosocial stress at work and work-family conflicts contribute to low job satisfaction and (2) whether these work and family characteristics explain socioeconomic and sex inequalities in low job satisfaction. Methods...

In general, women report more physical and mental symptoms than men. International comparisons of countries with different welfare state regimes may provide further understanding of the social determinants of sex inequalities in health. This study aims to evaluate (1) whether there are sex inequalities in health functioning as measured by the Short...

Management of job satisfaction is of growing importance in terms of the maintenance of employees' health. This study aimed to evaluate which and to what extent facets of job satisfaction contributed to global job satisfaction. The participants were 4286 employees aged 18-69 years working in local government in Japan. A questionnaire survey was cond...

Background It has been recognised that poor sleep quantity (i.e. short sleep duration) is associated with an increased risk for physical and mental diseases. However, there have been fewer studies on the associations of poor sleep quality with physical and mental health. Methods The subjects were 3684 (2471 males and 1213 females) employees aged 2...

Background Some of lifestyle factors may influence sleep quality. Because poor sleep quality is associated with an increased risk for various physical and mental diseases, it would be beneficial to identify lifestyle factors that may lead to poor sleep quality. Methods The subjects were 3341 employees (2280 males and 1061 females) aged 20-65 in lo...

Objective: A rapid rise in blood pressure (BP) in the early morning is called morning BP surge and is known to be related to the onset of cerebrovascular or cardiovascular diseases. Exposure to cold temperature aggravates this condition. However, few studies have investigated the relationship between morning BP surge and bedroom temperature (BT). T...

The purpose of this study was to clarify whether alcohol drinking patterns were associated with sleep quality. A cross-sectional survey was carried out by self-administered questionnaire in 2008 among 2,118 employees aged 18 to 65 years working in local government in Toyama. After excluding those without relevant data for this study, 661 men and 61...

This study aims to examine social class differences in smoking, heavy drinking, unhealthy food habits, physical inactivity and obesity, and work-related psychosocial factors as explanations for these differences. This is done by comparing employee cohorts from Britain, Finland and Japan. Social class differences in health behaviours are found in th...

Work-family conflicts are associated with poor health. However, work-family conflicts and health behaviors have been little studied. This study examined the associations of conflicts between paid work and family life with unhealthy behaviors among British, Finnish, and Japanese employees. Data were derived from postal questionnaire surveys among 40...

This study assessed the psychoneuroimmunologic changes achieved by Shirodhara, an Ayurvedic treatment, characterized by dripping oil on the forehead, in a randomized, controlled protocol involving a novel approach using a robotic system. In the first experiment for the determination of the most appropriate conditions of Shirodhara, 16 healthy femal...

The original publication is available at JAIST Press http://www.jaist.ac.jp/library/jaist-press/index.html IFSR 2005 : Proceedings of the First World Congress of the International Federation for Systems Research : The New Roles of Systems Sciences For a Knowledge-based Society : Nov. 14-17, 2011, Kobe, Japan Symposium 1, Session 1 : Technology Crea...