This study showed that the use of mobile phones for calling and for sending text messages after lights out is associated with sleep disturbances among Japanese adolescents. However, there were some limitations, such as small effect sizes, in this study. More studies that examine the details of this association are necessary to establish strategies for sleep hygiene in the future.
The longitudinal study revealed a statistically significant relationship, controlling for other relevant factors, between DIS and the presence of depression three years later, but not between EMA or DMS and depression. Based on our findings, we recommend that the association between insomnia subtypes and depression be studied longitudinally in clinical settings.
Mental Health Status, Shift Work, and Occupational Accidents among Hospital Nurses in Japan: Kenshu Suzuki, et al. Department of Public Health, School of Medicine, Nihon University—A questionnaire survey was conducted with questions from the 12‐item General Health Questionnaire, among others, targeting 4,407 nurses in 8 general hospitals in Japan, in the hope of improving the work environment of nurses and to provide data that will allow a discussion of the measures necessary for preventing medical errors, thus improving occupational health. For each type of accident, the percentage of those who had made medical errors was significantly higher for the “mentally in poor health” group than for the “mentally in good health” group (p<0.0001). The percentage of nurses in the “mentally in good health” and “mentally in poor health” groups who had experienced occupational accidents over the past 12 months (i.e., whether they were “with errors” or “without errors”) was calculated for each of the following four types of medical accident:(1) drug‐administration errors, (2) incorrect operation of medical equipment, (3) errors in patient identification, and (4) needlestick injuries. For each type of accident, the percentage of those who had made medical errors was significantly higher for the “mentally in poor health” group than for the “mentally in good health” group (p<0.0001). Multiple logistic regression analyses revealed significant associations between experience of medical errors in the past 12 months and being mentally in poor health, with night or irregular shift work, and age.
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