著者
Sayaka Horiuchi Akihiko Ozaki Mariko Inoue Jun Aida Kazue Yamaoka
出版者
Tohoku University Medical Press
雑誌
The Tohoku Journal of Experimental Medicine (ISSN:00408727)
巻号頁・発行日
vol.247, no.2, pp.129-137, 2019 (Released:2019-02-23)
参考文献数
35
被引用文献数
3

Media coverage of disasters potentially damages mental health. Moreover, its effects may differ as recipients may have different emotional responses toward media. The present study examined whether social capital, known to be protective against mental problems, influences a recipient’s emotional response toward news media broadcasting of natural disasters via newspapers, television and internet in Japan. Three social capital components, social participation, social support and cognitive social capital, were considered in the present study as each component reportedly had different effect on mental health. This nationwide cross-sectional survey was undertaken in 2015 among 1,200 Japanese citizens aged 15 to 79 years who were selected using the multi-stage sampling procedure. Data were collected via the drop-off pick-up method using a printed structured questionnaire. Negative and positive emotions were classified based on recipients’ responses against news media. Among 1,190 participants who reported emotions toward news media, 30.9% (368) had experienced any natural disasters, 37.4% (445) belonged to at least one formal or informal organization (social participation), 40.2% (478) had high social support, and 68.8% (819) had high cognitive social capital. High social support was associated with both reduced negative emotional response (OR 0.66, 95% Confidence Interval (CI) 0.47-0.93) and increased positive emotional response (OR 1.48, 95% CI 1.04-2.12) in multivariate analyses, while high cognitive social capital was only associated with increased positive emotional response (OR 1.62, 95% CI 1.11-2.37). These results suggest protective effects of social support and cognitive social capital against news media coverage of natural disasters.
著者
Akihiko Ozaki Sayaka Horiuchi Yasuma Kobayashi Mariko Inoue Jun Aida Claire Leppold Kazue Yamaoka
出版者
Tohoku University Medical Press
雑誌
The Tohoku Journal of Experimental Medicine (ISSN:00408727)
巻号頁・発行日
vol.246, no.4, pp.213-223, 2018 (Released:2018-12-12)
参考文献数
23
被引用文献数
11

The purpose of the present study was to assess the effects of social capital on mental health among the Japanese population with or without natural disaster experience. A nationwide cross-sectional study was performed in the population aged 15 to 79 years old. We collected data on psychological status, social capital, disaster experience in ten years prior to the survey, and socio-demographic information. We assessed cognitive social capital (perceptions of support, reciprocity and trust), social support (support from individuals in the community), and social participation (participation in social activities) as components of social capital. The study outcome was mild mood or anxiety disorder (hereafter mood/anxiety disorder), defined as the score of 5 or higher in the Kessler Psychological Distress Scale (K6). Using logistic regression models, we tested whether each component of social capital was associated with mood/anxiety disorder with or without disaster experience. Out of 1,200 participants, 1,183 had available K6 score data and were considered. Among three components of social capital, only social support significantly interacted with disaster experience (p = 0.019). In the population without disaster experience, those with high social support were less likely to have mood/anxiety disorder (OR 0.45, 95% Cl 0.28-0.73); however, no such association was observed among those with disaster experience (OR 1.11, 95% CI 0.64-1.90). Thus, the protective effects of social support against mood/anxiety disorder vary in the Japanese population depending on disaster experience. The present study provides important insight into the role of social capital on mental health after natural disaster.
著者
Hoichi Amano Yoshiharu Fukuda Takashi Yokoo Kazue Yamaoka
出版者
Japan Atherosclerosis Society
雑誌
Journal of Atherosclerosis and Thrombosis (ISSN:13403478)
巻号頁・発行日
pp.42036, (Released:2018-03-27)
参考文献数
24
被引用文献数
16

Aim: Shift workers have a high risk of cardiovascular disease (CVD). Systemic inflammation measured has been associated with the risk of CVD onset, in addition to classical risk factors. However, the association between work schedule and inflammatory cytokine levels remains unclear. The purpose of this study was to examine the association between work schedule and interleukin-6 (IL-6)/high-sensitivity C-reactive protein (hs-CRP) levels among Japanese workers.Methods: The present cross-sectional study was a part of the Japanese Study of Health, Occupation and Psychosocial Factors Related Equity (J-HOPE). A total of 5259 persons who measured inflammatory cytokine were analyzed in this study. One-way analysis of variance was used to test log-transformed IL-6/hs-CRP differences by work schedule. Multiple regression analysis was used to examine the difference adjusted for other possible CVD risk factors.Results: There were 3660 participants who had a regular work schedule; the remaining schedules were shift work without night work for 181 participants, shift work with night work for 1276 participants, and only night work for 142 participants. The unadjusted model showed that only night workers were significantly related to high levels of IL-6 compared with regular workers. Even in the multiple regression analysis, the higher level of IL-6 among only night workers remained significant (β=0.058, P=0.01). On the contrary, hs-CRP was not.Conclusion: The present study revealed that only night shift work is significantly associated with high levels of IL-6 in Japanese workers. These observations help us understand the mechanism for the association between work schedule and CVD onset.