[Association of sleep problems with self-rated health - a large epidemiologic survey in the working population].

To investigate the association between various sleep problems and self-rated health (SRH), a total of 43,092 (34,164 men and 8,928 women) employees were surveyed by means of a self-administered questionnaire. The risk of suboptimal (poor, very poor) SRH associated with sleep problems was estimated using multivariable logistic regression with odds ratios (ORs) as measures of associations. Because the prevalence of suboptimal SRH differed by sex (men 29.

[The relationship between the contents and the level of achievement of objectives in an occupational health nursing practicum].

The purpose of this study was to evaluate the program and teaching methods of the occupational health nursing practicum in order to enforce students' learning experience in the clinical practice. Self-evaluation sheets graded from levels 1 to 4 were from 63 students, and statistical analysis was performed in relation to their performance levels. The results of the analysis of 63 students' performance sheets indicated that the students achieved 3 points above average in all 14 course objectives.

Effect of work conditions and work environments on the formation of 8-OH-dG in nurses and non-nurse female workers.

The purpose of our study was to examine the effects of job stress factors on oxidative DNA injuries among female workers. The levels of urinary 8-hydroxydeoxyguanosine (8-OH-dG) were measured along with a survey on work conditions and environments. The result showed that female workers in shift work excreted increased levels of 8-OH-dG in comparison with the result of those who were engaged in part time work (P < 0.

[Current status of employment and labor of occupational nurses in external agencies for industrial health].

The purposes of this study were to survey the actual conditions of the employment status and activities of occupational health nurses who are employed in Japanese Industrial Health Organizations (IHOs), and to investigate whether the OHNs provide quality health services to employees. We mailed 1,780 questionnaires to nurses who belong to 92 IHOs (members of the National Federation of Industrial Health Organizations). A total of 976 questionnaires were returned (54.

The effect of lemon fragrance on simple mental performance and psychophysiological parameters during task performance.

The purpose of this study is to effectively utilize fragrance in order to form a comfortable working environment, for which we obtained necessary data. The subjects were 14 female students. We made them do addition work in laboratories with and without lemon fragrance, and investigated their task performances, physiological changes and mood conditions.