Yoneatsu Osaki

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STUDY OBJECTIVE To examine the prevalence and correlates of sleep problems in Japanese adolescents. DESIGN AND SETTING The survey was designed as a cross-sectional sampling. The targets of the survey were junior and senior high schools throughout Japan. Sample schools were selected by stratified cluster sampling. Self-reported anonymous questionnaires(More)
STUDY OBJECTIVES Although a number of previous studies have examined the prevalence of insomnia among adolescents, there have been very few nationwide studies. The objectives of this nationwide study were to clarify the prevalence of insomnia, its symptoms, and associated factors among Japanese adolescents. DESIGN AND SETTING This study was designed as a(More)
OBJECTIVE Previous epidemiological studies on relationships between mental health status and sleep status of adolescents have not been sufficiently representative. In the present study, using samples representative of Japanese adolescents nationwide, associations between mental health status and various sleep statuses were examined. METHOD The survey was(More)
OBJECTIVES To assess trends in smoking prevalence among Japanese adolescents and to analyze possible causal factors for the decrease in smoking prevalence observed in a 2004 survey. METHODS Nationwide cross-sectional surveys were conducted in 1996, 2000 and 2004. Survey schools, both junior and senior high schools, considered to be representative of the(More)
AIMS The purpose of this paper is to outline alcohol availability, alcohol consumption and related harm, alcohol control policy and prevention programmes in Japan, few of which have been discussed in either the Japanese or English literature. METHODS Data were collected primarily from the following two sources: statistics and survey results issued by the(More)
Although radiographic screening for gastric cancer has been conducted in Japan, it is anticipated that endoscopy will become a new screening method because of its high detection rate. The sensitivities of endoscopic and radiographic screening were calculated by the detection method and the incidence method based on the results of community-based screening(More)
STUDY OBJECTIVE The objective of this study was to examine the association between the use of mobile phones after lights out and sleep disturbances among Japanese adolescents. DESIGN AND SETTING This study was designed as a cross-sectional survey. The targets were students attending junior and senior high schools throughout Japan. Sample schools were(More)
OBJECTIVE To assess whether the Glu298Asp polymorphism of the endothelial nitric oxide synthase (eNOS) gene possibly mediates the relation of blood pressure and serum cholesterol. METHOD Regular health examination in 2003 of 1,694 Japanese workers from the Shimane Prefecture, Japan. RESULTS The frequencies of the Glu/Glu, Glu/Asp, and Asp/Asp genotypes(More)
AIM OF THE STUDY To clarify the relationship between the presence of metabolic syndrome and the incidence of cancer in a general Japanese population. METHODS A retrospective cohort study was conducted among 8329 male and 15,386 female subjects between 1992 and 2000. The analysis used five definitions of metabolic syndrome. The information on the(More)
OBJECTIVE After the great East Japan earthquake of 2011, residents with intellectual disabilities and their caregivers in Fukushima were evacuated to the prefecture of Chiba. We investigated the impact of the earthquake on the caregivers' burden. METHODS Between August 2011 and January 2012, 46 caregivers evacuated from Fukushima and 46 caregivers at(More)