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Sasaki N, Kuroda R, Tsuno K, Imamura K, Eguchi H, Shimazu A, Kawakami N. Loneliness without distress, chosen isolation (solitude) at the workplace, and mental health and job performance: a cross-sectional study of Japanese employees. Ind Health 2024:2023-0181. [PMID: 38583956 DOI: 10.2486/indhealth.2023-0181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
While loneliness and social isolation in the workplace affect the mental health and job performance of employees, the effects of loneliness without distress and solitude (i.e., chosen isolation) on these outcomes are unclear. The cross-sectional association was examined by using online survey of full-time employees in Japan (n=846). The results showed that the "loneliness with distress" group had significantly higher psychological distress and lower job performance than the other groups. Work engagement was lower both in the "loneliness with distress" and "loneliness without distress" groups, compared to the "non-loneliness" group. The "unchosen isolation" and the "solitude" groups had poorer scores of psychological distress, work engagement, and work performance, compared to the "non-isolation" group. The preliminary findings showed that loneliness without distress and solitude were associated with poor levels of mental health and job performance and should become a target of mental health promotion interventions in the workplace.
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Affiliation(s)
- Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Japan
| | - Reiko Kuroda
- Division for Environment, Health, and Safety, The University of Tokyo, Japan
| | - Kanami Tsuno
- School of Health Innovation, Kanagawa University of Human Services, Japan
| | - Kotaro Imamura
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, Japan
| | - Hisashi Eguchi
- Department of Mental Health, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan
| | | | - Norito Kawakami
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, Japan
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Sasaki N, Shimazu T, Takeno H, Ogawa S, Sawada U, Tsutsumi A, Imamura K. Implementation of an internet-based stress management program in micro- and small-sized enterprises: a study protocol for a pre-post feasibility study of the effectiveness-implementation hybrid type 2 trial. Pilot Feasibility Stud 2024; 10:56. [PMID: 38581058 PMCID: PMC10996202 DOI: 10.1186/s40814-024-01481-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 03/12/2024] [Indexed: 04/07/2024] Open
Abstract
BACKGROUND Although internet-based stress management programs are proven effective in improving mental health among workers, micro- and small-sized enterprises (MSEs), lacking in occupational healthcare services, face challenges implementing them. To address this gap, this study will develop the program with stakeholders at MSEs to aim for real-world implementation. OBJECTIVES This paper describes a study protocol for a pre-post feasibility study of an effectiveness-implementation hybrid type 2 trial of text-based internet-based programs ("WellBe-LINE") in MSEs with less than 50 employees. This feasibility study primarily aims to evaluate trial methods for future effectiveness-implementation hybrid type 2 trials. METHODS For this study protocol, an internet- and text-based self-care intervention program using the LINE app (a popular message tool in Japan) will be prepared according to evidence-based psychoeducational topics. Based on our online survey findings, personalized algorithms will be implemented according to employees' gender, age, and psychological distress levels. A personalized program using a popular pre-existing text app is expected to reduce employees' burdens and be attractive to them, resulting in successful implementation outcomes and mental health benefits. A pre-post design feasibility study will be conducted on ten companies to evaluate trial methods (e.g., recruitment and procedures). The primary outcome will involve individual-level penetration, defined as the proportion of the number of employees who register for the program divided by the total number of invited employees at the company. The progression criterion to go next trial specifies that more than 50% of the recruited companies obtain 60% individual penetration, which is set based on the findings of the prior survey of employees at MSEs and of interviews of stakeholders involved in this study, and will be measured by LINE system. Finally, acceptability, appropriateness, and feasibility will be measured using internet-based questionnaires and interviews. DISCUSSION This pre-post feasibility study for future effectiveness-implementation hybrid type 2 trials will provide in-depth knowledge about the successful implementation of text-based, semi-personalized, self-care mental health interventions in real-world settings using both quantitative and qualitative data. CONCLUSIONS This feasibility study will help validate the effectiveness of text-based interventions using a widely used social networking service (SNS) tool for employees in MSEs. TRIAL REGISTRATION UMIN clinical trial registration, UMIN000046960. Registered on February 21, 2022. https://center6.umin.ac.jp/cgi-open-bin/ctr/ctr_view.cgi?recptno=R000053570.
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Affiliation(s)
- Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Taichi Shimazu
- Division of Behavioral Sciences, National Cancer Center Institute for Cancer Control, National Cancer Center, Tokyo, Japan
| | - Hajime Takeno
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Sayaka Ogawa
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Utako Sawada
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Akizumi Tsutsumi
- Department of Public Health, Kitasato University School of Medicine, Sagamihara, Japan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan.
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Sakuraya A, Matsumura M, Komatsu S, Imamura K, Iida M, Kawakami N. Statement on use of generative artificial intelligence by adolescents. Asian J Psychiatr 2024; 94:103947. [PMID: 38364747 DOI: 10.1016/j.ajp.2024.103947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 01/26/2024] [Accepted: 01/31/2024] [Indexed: 02/18/2024]
Affiliation(s)
- Asuka Sakuraya
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, Japan.
| | - Masayo Matsumura
- Department of Medical VR, Kochi Medical School, Kohasu, Oko-cho, Nankoku-shi, Kochi, Japan; BiPSEE Inc., Shibuya Dogenzaka Tokyu Bldg. #2F-C, 1-10-8 Dogenzaka, Shibuya-ku, Tokyo 150-0043, Japan
| | - Shohei Komatsu
- Department of Medical VR, Kochi Medical School, Kohasu, Oko-cho, Nankoku-shi, Kochi, Japan; BiPSEE Inc., Shibuya Dogenzaka Tokyu Bldg. #2F-C, 1-10-8 Dogenzaka, Shibuya-ku, Tokyo 150-0043, Japan
| | - Kotaro Imamura
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, Japan
| | - Mako Iida
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, Japan
| | - Norito Kawakami
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, Japan
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Watanabe K, Hikichi H, Imamura K, Sakuraya A, Yoshikawa T, Izawa S, Eguchi H, Inoue A, Yoshida K, Orihashi Y, Tsutsumi A. Multifaceted ORganizational InterventiONs (M-ORION) project for prevention of depression and anxiety among workers: study protocol for a five-arm cluster randomized controlled trial. BMC Public Health 2024; 24:601. [PMID: 38402156 PMCID: PMC10894478 DOI: 10.1186/s12889-024-18112-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 02/14/2024] [Indexed: 02/26/2024] Open
Abstract
BACKGROUND Depression and anxiety are the most common mental health issues experienced by workers. Although organizational intervention has been extensively evaluated as a primary prevention of depression and anxiety, the corresponding scientific evidence remains limited because of the lack of cluster randomized controlled trials (cRCT) and failure to detect organizational-level effects. Therefore, the present study aims to assess the preventive effects of four types of interventions on depression and anxiety among workers in an open, five-arm, parallel-group cRCT. METHODS Overall, 140 worksites and 18,200 nested employees will be recruited from September 2023. The eligible worksites will be randomly assigned to each of the five arms, and programs will be offered for 6-12 months. The five arms are 1) psychoeducation for workers, 2) psychoeducation for supervisors, 3) work environment improvement, 4) physical activity promotion, and 5) active control. The primary outcomes of interest are depression and anxiety. We will also assess psychosocial factors at work, work engagement, health-related quality of life, well-being, economic outcomes, physiological outcomes of health checkups, cortisol levels extracted from fingernails, and indices representing the process and implementation outcomes, including program completion rates. Follow-up surveys will be conducted at 6, 12, and 18 months from baseline, and the primary endpoint is set at the 6-month follow-up. Repeated-measures multi-level mixed modeling will be used to evaluate the effect of each intervention compared with the control. ETHICS AND DISSEMINATION The study protocol was approved by the Research Ethics Committee of the Kitasato University Medical Ethics Organization (C22-082). The results and findings of this study will be published in a scientific journal and disseminated to companies that participate in the study. TRIAL REGISTRATION NUMBER UMIN000050949.
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Affiliation(s)
- Kazuhiro Watanabe
- Department of Public Health, Kitasato University School of Medicine, 1-15-1 Kitazato, Minami-Ku, Sagamihara, 252-0374, Japan
| | - Hiroyuki Hikichi
- Department of Public Health, Kitasato University School of Medicine, 1-15-1 Kitazato, Minami-Ku, Sagamihara, 252-0374, Japan
| | - Kotaro Imamura
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Asuka Sakuraya
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Toru Yoshikawa
- Research Center for Overwork-Related Disorders (RECORDs), National Institute of Occupational Safety and Health, Japan, 6-21-1 Nagao, Tama-Ku, Kawasaki, 214-8585, Japan
| | - Shuhei Izawa
- Occupational Stress and Health Management Research Group, National Institute of Occupational Safety and Health, Japan, 6-21-1 Nagao, Tama-Ku, Kawasaki, 214-8585, Japan
| | - Hisashi Eguchi
- Department of Mental Health, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan, 1-1 Iseigaoka, Yahatanishi-Ku, Kitakyushu, 807-8555, Japan
| | - Akiomi Inoue
- Institutional Research Center, University of Occupational and Environmental Health, Japan, 1-1 Iseigaoka, Yahatanishi-Ku, Kitakyushu, 807-8555, Japan
| | - Kengo Yoshida
- IID Co. Ltd, 4-1-11 Yushima, Bunkyo-Ku, Tokyo, 113-0034, Japan
| | - Yasushi Orihashi
- Clinical Research Center in Hiroshima, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Akizumi Tsutsumi
- Department of Public Health, Kitasato University School of Medicine, 1-15-1 Kitazato, Minami-Ku, Sagamihara, 252-0374, Japan.
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Go S, Tsuzuki Y, Yoneda H, Ichikawa Y, Ikeda T, Imai N, Imamura K, Niikura M, Nishimura D, Mizuno R, Takeda S, Ueno H, Watanabe S, Saito TY, Shimoura S, Sugawara S, Takamine A, Takahashi T. Demonstration of nuclear gamma-ray polarimetry based on a multi-layer CdTe Compton camera. Sci Rep 2024; 14:2573. [PMID: 38336981 DOI: 10.1038/s41598-024-52692-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 01/22/2024] [Indexed: 02/12/2024] Open
Abstract
To detect and track structural changes in atomic nuclei, the systematic study of nuclear levels with firm spin-parity assignments is important. While linear polarization measurements have been applied to determine the electromagnetic character of gamma-ray transitions, the applicable range is strongly limited due to the low efficiency of the detection system. The multi-layer Cadmium-Telluride (CdTe) Compton camera can be a state-of-the-art gamma-ray polarimeter for nuclear spectroscopy with the high position sensitivity and the detection efficiency. We demonstrated the capability to operate this detector as a reliable gamma-ray polarimeter by using polarized 847-keV gamma rays produced by the [Formula: see text]([Formula: see text]) reaction. By combining the experimental data and simulated calculations, the modulation curve for the gamma ray was successfully obtained. A remarkably high polarization sensitivity was achieved, compatible with a reasonable detection efficiency. Based on the obtained results, a possible future gamma-ray polarimetery is discussed.
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Affiliation(s)
- S Go
- RIKEN Cluster for Pioneering Research, RIKEN, Wako, Saitama, Japan.
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan.
| | - Y Tsuzuki
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan
- Department of Physics, The University of Tokyo, Tokyo, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo, Chiba, Japan
| | - H Yoneda
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan
- Lehrstuhl für Astronomie, Fakultät für Physik und Astronomie, Institut für Theoretische Physik und Astrophysik, Julius-Maximilians-Universität Würzburg, Emil-Fischer-Str. 31, 97074, Würzburg, Germany
| | - Y Ichikawa
- Department of Physics, Kyushu University, Fukuoka, Japan
| | - T Ikeda
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan
| | - N Imai
- Center for Nuclear Study, The University of Tokyo, Wako, Saitama, Japan
| | - K Imamura
- RIKEN Cluster for Pioneering Research, RIKEN, Wako, Saitama, Japan
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan
| | - M Niikura
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan
| | - D Nishimura
- Department of Natural Sciences, Tokyo City University, Tokyo, Japan
| | - R Mizuno
- Department of Physics, The University of Tokyo, Tokyo, Japan
| | - S Takeda
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo, Chiba, Japan
| | - H Ueno
- RIKEN Cluster for Pioneering Research, RIKEN, Wako, Saitama, Japan
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan
| | - S Watanabe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Kanagawa, Japan
| | - T Y Saito
- Center for Nuclear Study, The University of Tokyo, Wako, Saitama, Japan
- Atomic, Molecular, and Optical Physics Laboratory, RIKEN, Wako, Saitama, Japan
| | - S Shimoura
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan
- Center for Nuclear Study, The University of Tokyo, Wako, Saitama, Japan
| | - S Sugawara
- Department of Natural Sciences, Tokyo City University, Tokyo, Japan
| | - A Takamine
- RIKEN Cluster for Pioneering Research, RIKEN, Wako, Saitama, Japan
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan
| | - T Takahashi
- Department of Physics, The University of Tokyo, Tokyo, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo, Chiba, Japan
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Iida M, Sakuraya A, Watanabe K, Imamura K, Sawada U, Akiyama H, Komase Y, Miyamoto Y, Kawakami N. The association between team job crafting and work engagement among nurses: a prospective cohort study. BMC Psychol 2024; 12:66. [PMID: 38336755 PMCID: PMC10854162 DOI: 10.1186/s40359-024-01538-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 01/11/2024] [Indexed: 02/12/2024] Open
Abstract
BACKGROUND Team-level job crafting has been put forward as a method to promote nurses' mental health. However, a longitudinal association is unclear. Therefore, the objective of this study was to investigate the association between team job crafting at baseline and work engagement, work performance, psychological distress, and intention to leave at three-month and six-month follow-ups among Japanese hospital nurses. Also, whether an increase in the team job crafting during 3 or 6 months was associated with an increase in the work engagement during 3 or 6 months of individual nurses was examined. METHODS A multilevel prospective cohort study was conducted. Data were collected from nurses of five hospitals in Japan at baseline (T1) and follow-ups at 3-months (T2) and 6-months (T3). A total of 2,478 nurses were included. The team job crafting scale for nurses and its three subscales were measured for the independent variables. Ward-means were used as ward-level variables. The dependent variables were work engagement, work performance, psychological distress, and intention to leave. Hierarchical Linear Modeling (HLM) was used to examine the multilevel association. The study protocol was registered at the UMIN Clinical Trials Registry (ID = UMIN000047810) (May 22, 2022). RESULTS A total of 460 nurses completed the T1 survey (response rate = 18.6%), and data from 391 nurses nested in 30 wards were included in the analyses. The intraclass correlation coefficients (ICCs) at T1 were 0.02 for work engagement and 0.07 for team job crafting. The HLM revealed that ward-level team job crafting at T1 was not significantly associated with work engagement, work performance, psychological distress, and intention to leave at T2 or T3. The ward-level change (T3-T1) of "crafting for the task considering the team's growth" (subscale for team job crafting) was significantly and positively associated with the change (T3-T1) in work engagement. CONCLUSIONS Ward-level team job crafting at baseline did not predict nurses' work engagement, work performance, psychological distress, or intention to leave at a three-month or six-month follow-up. The impact of ward-level team job crafting may attenuate over several months.
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Affiliation(s)
- Mako Iida
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-Ku, Tokyo, 113-0033, Japan
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-Ku, Tokyo, 113-0033, Japan
| | - Asuka Sakuraya
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-Ku, Tokyo, 113-0033, Japan
| | - Kazuhiro Watanabe
- Department of Public Health, Kitasato University School of Medicine, 1-15-1 Kitazato, Minami-ku, Sagamihara, Kanagawa, 252-0374, Japan
| | - Kotaro Imamura
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-Ku, Tokyo, 113-0033, Japan
| | - Utako Sawada
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-Ku, Tokyo, 113-0033, Japan
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-Ku, Tokyo, 113-0033, Japan
| | - Hiroto Akiyama
- Accenture Japan Ltd, Sumitomo Fudosan Azabu Juban Bldg., 1-4-1 Mita, Minato-ku, Tokyo, 108-0073, Japan
| | - Yu Komase
- Fujitsu Japan Limited, 1-5-2, Higashishinbashi, Minato-Ku, Tokyo, 105-7123, Japan
| | - Yuki Miyamoto
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-Ku, Tokyo, 113-0033, Japan
| | - Norito Kawakami
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-Ku, Tokyo, 113-0033, Japan.
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Tani N, Fujihara H, Ishii K, Kamakura Y, Tsunemi M, Yamaguchi C, Eguchi H, Imamura K, Kanamori S, Kojimahara N, Ebara T. What digital health technology types are used in mental health prevention and intervention? Review of systematic reviews for systematization of technologies. J Occup Health 2024; 66:uiad003. [PMID: 38258936 PMCID: PMC11020255 DOI: 10.1093/joccuh/uiad003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/21/2023] [Accepted: 10/10/2023] [Indexed: 01/24/2024] Open
Abstract
Digital health technology has been widely applied to mental health interventions worldwide. Using digital phenotyping to identify an individual's mental health status has become particularly important. However, many technologies other than digital phenotyping are expected to become more prevalent in the future. The systematization of these technologies is necessary to accurately identify trends in mental health interventions. However, no consensus on the technical classification of digital health technologies for mental health interventions has emerged. Thus, we conducted a review of systematic review articles on the application of digital health technologies in mental health while attempting to systematize the technology using the Delphi method. To identify technologies used in digital phenotyping and other digital technologies, we included 4 systematic review articles that met the inclusion criteria, and an additional 8 review articles, using a snowballing approach, were incorporated into the comprehensive review. Based on the review results, experts from various disciplines participated in the Delphi process and agreed on the following 11 technical categories for mental health interventions: heart rate estimation, exercise or physical activity, sleep estimation, contactless heart rate/pulse wave estimation, voice and emotion analysis, self-care/cognitive behavioral therapy/mindfulness, dietary management, psychological safety, communication robots, avatar/metaverse devices, and brain wave devices. The categories we defined intentionally included technologies that are expected to become widely used in the future. Therefore, we believe these 11 categories are socially implementable and useful for mental health interventions.
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Affiliation(s)
- Naomichi Tani
- Department of Ergonomics, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Hiroaki Fujihara
- Department of Ergonomics, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Kenji Ishii
- The Ohara Memorial Institute for Science of Labour, Tokyo 151-0051, Japan
| | - Yoshiyuki Kamakura
- Department of Information Systems, Faculty of Information Science and Technology, Osaka Institute of Technology, Osaka 573-0196, Japan
| | - Mafu Tsunemi
- Department of Occupational and Environmental Health, Nagoya City University Graduate School of Medical Sciences/Medical School, Nagoya 467-8601, Japan
| | - Chikae Yamaguchi
- Department of Nursing, Faculty of Nursing, Kinjo Gakuin University, Aichi 463-8521, Japan
| | - Hisashi Eguchi
- Department of Mental Health, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health,Kitakyushu 807-8555, Japan
| | - Kotaro Imamura
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Satoru Kanamori
- Graduate School of Public Health, Teikyo University, Tokyo 173-8605, Japan
| | - Noriko Kojimahara
- Section of Epidemiology, Shizuoka Graduate University of Public Health, Shizuoka 420-0881, Japan
| | - Takeshi Ebara
- Department of Ergonomics, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
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Kasai H, Bergamo ET, Balderrama ÍD, Imamura K, Witek L, Jalkh EB, Bonfante EA, Inoue K, Coelho PG, Yamano S. The effect of nano hydroxyapatite coating implant surfaces on gene expression and osseointegration. Med Oral Patol Oral Cir Bucal 2023:26303. [PMID: 37992148 DOI: 10.4317/medoral.26303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 09/18/2023] [Indexed: 11/24/2023] Open
Abstract
BACKGROUND Hierarchical micro-nano structured topography along with surface chemistry modifications of dental implants have been suggested to positively contribute to the osseointegration process. However, the effect of such surface modifications on the molecular response as well as bone formation rate and quality are still unclear, especially in the early healing period. This study aimed to evaluate the effect of coating a double acid etched (DAE) implant surface with nano-sized (20 nm) hydroxyapatite (Nano) with respect to gene expression, histologic parameters, and nanomechanical properties when compared to DAE control at 1 and 2 weeks after implant placement in a rodent femur model. MATERIAL AND METHODS Expression of bone-related genes was determined by qRT-PCR (Col-I, Runx-2, Osx, Opn, Ocn, Alp). Histomorphometric evaluation of bone-to-implant contact (BIC) and bone area fraction occupancy (BAFO) within implant threads was performed using photomicrographs after histologic processing. Mechanical properties, reduced elastic modulus and hardness, were determined through nanoindentation. RESULTS At 1 week, the Nano group demonstrated significantly higher expression of Col-I and Ocn compared to the DAE group, indicating upregulation of osteoprogenitor and osteoblast differentiation genes. At 2 weeks, Nano surface further exhibited enhanced gene expression of Col-I and Osx in comparison to the DAE surface, suggesting an increased mineralization of the newly formed bone. Nanoindentation analysis revealed that the Nano group presented no significant difference on the ranks of reduced elastic modulus and hardness compared to DAE for both timepoints. Histomorphometric analysis yielded no significant difference in the percentage of BIC and BAFO between the Nano and DAE surfaces at 1 and 2 weeks. However, Nano implants did present a higher mean value, ~50%, of BIC compared to DAE, ~30%, after 2 weeks in vivo. CONCLUSIONS While no significant differences were observed in the amount and mechanical properties of newly formed bone, Nano surface positively and significantly increased the expression osteogenic genes compared to DAE surface at early healing periods.
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Affiliation(s)
- H Kasai
- Biomaterials Division New York University College of Dentistry 345 E. 24th St, Room 902D / New York, NY, USA
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Dohi Y, Imamura K, Sasaki N, Komase Y, Sakuraya A, Nakamura Y, Maejima M, Aoyama M, Kawakami N, Miyamoto Y. Effects of an Internet Delivered Behavioral Activation Program on Improving Work Engagement Among Japanese Workers: A Pretest and Posttest Study. J Occup Environ Med 2023; 65:e654-e659. [PMID: 37505082 DOI: 10.1097/jom.0000000000002933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
OBJECTIVE The aim of the study is to examine the effect of a newly developed Internet-delivered behavioral activation (iBA) program on work engagement and well-being among Japanese workers with elevated psychological distress. METHODS Participants were recruited via an Internet survey company ( N = 3299). The eligibility criteria were as follows: (1) Japanese employees aged 20 to 59 years, (2) having psychological distress, and (3) not self-employed. This iBA program was a 3-week web-based training course using behavioral activation techniques. Work engagement, psychological distress, and eudemonic well-being at work were measured at baseline and postintervention period. A paired sample t test was conducted to assess the intervention effect. RESULTS Of the 568 eligible participants, 120 were randomly selected. A total of 108 participants completed the baseline survey and received the iBA program. Eighty respondents completed the postintervention survey and were included in analyses. The iBA program did not show a significant intervention effect on work engagement ( P = 0.22, Cohen d = 0.14), while psychological distress ( P < 0.01, d = -0.40) and role-oriented future prospects ( P = 0.02, Cohen d = 0.27) were significantly improved. CONCLUSIONS The effect of the iBA program on work engagement may be limited.
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Affiliation(s)
- Yuri Dohi
- From the Department of Psychiatric Nursing, Graduate school of Medicine, University of Tokyo, Tokyo, Japan (Y.D., Y.M.); Department of Mental health, Graduate school of Medicine, University of Tokyo, Tokyo, Japan (K.I., N.S., A.S., N.K.); and Fujitsu Japan Limited, Tokyo, Japan (Y.K., Y.N., M.M., M.A.)
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Sakuraya A, Shimazu A, Imamura K, Kawakami N. Corrigendum: Effects of a job crafting intervention program on work engagement among Japanese employees: A randomized controlled trial. Front Psychol 2023; 14:1153979. [PMID: 37599727 PMCID: PMC10437108 DOI: 10.3389/fpsyg.2023.1153979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 02/16/2023] [Indexed: 08/22/2023] Open
Abstract
[This corrects the article DOI: 10.3389/fpsyg.2020.00235.].
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Affiliation(s)
- Asuka Sakuraya
- Department of Public Health, School of Medicine, Tokyo Women's Medical University, Shinjuku, Japan
| | - Akihito Shimazu
- Faculty of Policy Management, Keio University, Fujisawa-shi, Japan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Bunkyo, Japan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Bunkyo, Japan
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Sakuraya A, Imamura K, Watanabe K, Asai Y, Ando E, Eguchi H, Nishida N, Kobayashi Y, Arima H, Iwanaga M, Otsuka Y, Sasaki N, Inoue A, Inoue R, Tsuno K, Hino A, Shimazu A, Tsutsumi A, Kawakami N. Corrigendum: What kind of intervention is effective for improving subjective well-being among workers? A systematic review and meta-analysis of randomized controlled trials. Front Psychol 2023; 14:1236746. [PMID: 37469895 PMCID: PMC10353613 DOI: 10.3389/fpsyg.2023.1236746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 06/19/2023] [Indexed: 07/21/2023] Open
Abstract
[This corrects the article DOI: 10.3389/fpsyg.2020.528656.].
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Affiliation(s)
- Asuka Sakuraya
- Department of Public Health, School of Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kazuhiro Watanabe
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yumi Asai
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Emiko Ando
- Center for Cancer Control and Information Services, National Cancer Center, Tokyo, Japan
| | - Hisashi Eguchi
- Department of Public Health, Kitasato University School of Medicine, Kanagawa, Japan
| | | | - Yuka Kobayashi
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hideaki Arima
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Mai Iwanaga
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yasumasa Otsuka
- Faculty of Human Sciences, University of Tsukuba, Tokyo, Japan
| | - Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Akiomi Inoue
- Department of Public Health, Kitasato University School of Medicine, Kanagawa, Japan
| | - Reiko Inoue
- Department of Public Health, Kitasato University School of Medicine, Kanagawa, Japan
| | - Kanami Tsuno
- School of Health Innovation, Kanagawa University of Human Services, Kanagawa, Japan
| | - Ayako Hino
- Department of Mental Health, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health Japan, Fukuoka, Japan
| | - Akihito Shimazu
- Faculty of Policy Management, Keio University, Kanagawa, Japan
| | - Akizumi Tsutsumi
- Department of Public Health, Kitasato University School of Medicine, Kanagawa, Japan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Eguchi H, Watanabe K, Kawakami N, Ando E, Imamura K, Sakuraya A, Sasaki N, Inoue A, Tsuno K, Otsuka Y, Inoue R, Nishida N, Iwanaga M, Hino A, Shimazu A, Tsutsumi A. Work-related psychosocial factors and inflammatory markers: A systematic review and meta-analysis. J Psychosom Res 2023; 170:111349. [PMID: 37187013 DOI: 10.1016/j.jpsychores.2023.111349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 03/08/2023] [Accepted: 04/30/2023] [Indexed: 05/17/2023]
Abstract
OBJECTIVE We conducted a systematic review and meta-analysis to evaluate the prospective effect of adverse work-related psychosocial factors on increases in inflammatory markers. METHODS A systematic literature search was conducted in PubMed, Embase, PsycINFO, PsycARTICLES, and the Japan Medical Abstracts Society database. Studies were eligible for inclusion if they examined associations between work-related psychosocial factors and inflammatory markers (interleukin-6, tumor necrosis factor-alpha, and C-reactive protein), used longitudinal or prospective cohort designs, were conducted among workers, were original articles written in English or Japanese, and were published up to 2017 for the first search, October 2020 for the second, and November 2022 for the third. A meta-analysis was conducted using a random-effects model to assess the pooled effect size for the associations. A meta-regression analysis was used to estimate the association between length of follow-up and effect size. The ROBINS-I tool was used to assess risk of bias. RESULTS Of the 11,121 studies identified in the first search, 29,135 studies from the second, and 9448 studies from the third, eleven were eligible for this review and meta-analysis. The pooled coefficient between adverse work-related psychosocial factors and inflammatory markers was significant and positive (β = 0.014, 95% confidence interval: 0.005-0.023). However, a clear association was only observed for interleukin-6, and all the studies included had serious risks of bias. Meta-regression showed the effect size decreased depending on the follow-up period. CONCLUSION This study revealed a weak positive association between adverse work-related psychosocial factors and increases in inflammatory markers. TRIAL REGISTRATION PROSPERO CRD42018081553 (https://www.crd.york.ac.uk/PROSPERO/display_record.php?RecordID=81553).
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Affiliation(s)
- Hisashi Eguchi
- Department of Mental Health, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu-shi, Fukuoka 807-8555, Japan
| | - Kazuhiro Watanabe
- Department of Public Health, Kitasato University School of Medicine, 1-15-1 Kitazato, Minami-ku, Sagamihara-shi, Kanagawa 252-0374, Japan
| | - Norito Kawakami
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Emiko Ando
- Center for Public Health Sciences, National Cancer Center Japan, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Kotaro Imamura
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Asuka Sakuraya
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Akiomi Inoue
- Institutional Research Center, University of Occupational and Environmental Health, Japan, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu-shi, Fukuoka 807-8555, Japan
| | - Kanami Tsuno
- School of Health Innovation, Kanagawa University of Human Services, 3-25-10 Tono-machi, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-0821, Japan
| | - Yasumasa Otsuka
- Faculty of Human Sciences, University of Tsukuba, 3-29-1 Otsuka, Bunkyo-ku, Tokyo 112-0012, Japan
| | - Reiko Inoue
- Department of Public Health, Kitasato University School of Medicine, 1-15-1 Kitazato, Minami-ku, Sagamihara-shi, Kanagawa 252-0374, Japan
| | - Norimitsu Nishida
- Nidec Corporation, 338 Kuzetonoshiro-cho, Minami-ku, Kyoto 601-8205, Japan
| | - Mai Iwanaga
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ayako Hino
- Department of Mental Health, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu-shi, Fukuoka 807-8555, Japan
| | - Akihito Shimazu
- Faculty of Policy Management, Keio University, 5322 Endo, Fujisawa-shi, Kanagawa 252-0882, Japan
| | - Akizumi Tsutsumi
- Department of Public Health, Kitasato University School of Medicine, 1-15-1 Kitazato, Minami-ku, Sagamihara-shi, Kanagawa 252-0374, Japan.
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Sasaki N, Imamura K, Nishi D, Watanabe K, Asaoka H, Sekiya Y, Tsuno K, Kobayashi Y, Obikane E, Kawakami N. The effect of internet-based acceptance and commitment therapy (iACT) on psychological well-being among working women with a pre-school child: A randomized controlled trial. Journal of Contextual Behavioral Science 2023. [DOI: 10.1016/j.jcbs.2023.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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Kawakami N, Sasaki N, Asaoka H, Kuroda R, Tsuno K, Imamura K. Effects of workplace measures against COVID-19 and employees' worry about them on the onset of major depressive episodes: A 13-month prospective study of full-time employees. J Affect Disord 2023; 322:187-193. [PMID: 35439468 PMCID: PMC9013016 DOI: 10.1016/j.jad.2022.04.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 03/11/2022] [Accepted: 04/09/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND Workplace measures against COVID-19 may prevent the onset of major depressive episode (MDE) in the working population. This 13-month prospective study aimed to investigate the association of the number of workplace measures against COVID-19 and employees' worry about the measures on the onset of MDE during COVID-19 outbreaks in Japan. METHODS Data were collected from employees by using online questionnaires at baseline (May 2020) and the 7th survey (June 2021). The onset of MDE during the follow-up was retrospectively measured at the 7th survey, with a self-report scale based on the Mini-International Neuropsychiatric Interview according to the DSM-IV/DSM-5 criteria. Participants were asked to report the number of workplace measures against COVID-19 in their companies/organizations and their worry about these measures (scored 0-3). Multiple logistic regression was conducted of MDE on the number of workplace measures and worry about these, adjusting for demographic and work-related covariates and psychological distress at baseline. RESULTS Among 968 respondents employed in May 2020, 827 completed the 7th survey in June 2021 (80%). We excluded 75 respondents who reported they had an MDE in May 2020 or earlier. Worry about workplace measures was significantly associated with the onset of MDE after adjusting for the covariates (OR for 1 score increase, 1.53; 95% CI, 1.02-2.32; p = 0.042). No significant association was found between the number of workplace measures and the onset of MDE. CONCLUSIONS Worrying about workplace measures taken by company/organization may be a risk factor for the onset of an MDE among employees during the COVID-19 pandemic.
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Affiliation(s)
- Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
| | - Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
| | - Hiroki Asaoka
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
| | - Reiko Kuroda
- Division for Environment, Health and Safety, The University of Tokyo, Tokyo, Japan.
| | - Kanami Tsuno
- School of Health Innovation, Kanagawa University of Human Services, Kanagawa, Japan.
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
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Watanabe K, Imamura K, Eguchi H, Hidaka Y, Komase Y, Sakuraya A, Inoue A, Kobayashi Y, Sasaki N, Tsuno K, Ando E, Arima H, Asaoka H, Hino A, Iida M, Iwanaga M, Inoue R, Otsuka Y, Shimazu A, Kawakami N, Tsutsumi A. Usage of the Brief Job Stress Questionnaire: A Systematic Review of a Comprehensive Job Stress Questionnaire in Japan from 2003 to 2021. Int J Environ Res Public Health 2023; 20:1814. [PMID: 36767182 PMCID: PMC9914747 DOI: 10.3390/ijerph20031814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/13/2023] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
The Brief Job Stress Questionnaire (BJSQ) is used widely in occupational health studies and practice. Summarizing scientific production based on measurement is crucial. This study aimed to systematically review observational studies that used the BJSQ and the New BJSQ to show their usability. A systematic search was conducted for studies investigating relationships between the BJSQ or the New BJSQ subscales and other validated measurements on 13 September 2021, in various literature databases. The BJSQ subscales, scoring methods, and other validated measurements in the studies were qualitatively summarized. In total, 145 published reports between 2003 and 2021 were included. Among the BJSQ subscales, job stressors (n = 95) such as quantitative job overload (n = 65) and job control (n = 64) were most often used. The subscales were utilized to investigate the relationships with several other measurements. Five reports used subscales from the New BJSQ. In the last two decades, the BJSQ and the New BJSQ help measure psychosocial factors (PF) at work and contribute to the publication of scientific papers in the occupational health field. This study would encourage the utilization of the questionnaires for future research and practice.
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Affiliation(s)
- Kazuhiro Watanabe
- Department of Public Health, Kitasato University School of Medicine, 1-15-1 Kitazato, Minami-ku, Sagamihara 252-0374, Japan
| | - Kotaro Imamura
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hisashi Eguchi
- Department of Mental Health, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
| | - Yui Hidaka
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yu Komase
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Asuka Sakuraya
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Akiomi Inoue
- Institutional Research Center, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
| | - Yuka Kobayashi
- Faculty of Social Policy & Administration, Hosei University, 4342 Aiharamachi, Machida, Tokyo 194-0298, Japan
| | - Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kanami Tsuno
- School of Health Innovation, Kanagawa University of Human Services, 3-25-10 Tonomachi, Kawasaki-ku, Kawasaki 210-0821, Japan
| | - Emiko Ando
- Institute for Cancer Control, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Hideaki Arima
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiroki Asaoka
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ayako Hino
- Department of Mental Health, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
| | - Mako Iida
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Mai Iwanaga
- Department of Community Mental Health & Law, National Center of Neurology and Psychiatry, National Institute of Mental Health, 4-1-1 Ogawahigashi, Kodaira, Tokyo 187-0031, Japan
| | - Reiko Inoue
- Department of Public Health, Kitasato University School of Medicine, 1-15-1 Kitazato, Minami-ku, Sagamihara 252-0374, Japan
| | - Yasumasa Otsuka
- Faculty of Human Sciences, University of Tsukuba, 3-29-1 Otsuka, Bunkyo-ku, Tokyo 112-0012, Japan
| | - Akihito Shimazu
- Faculty of Policy Management, Keio University, 5322 Endo, Fujisawa 252-0882, Japan
| | - Norito Kawakami
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Akizumi Tsutsumi
- Department of Public Health, Kitasato University School of Medicine, 1-15-1 Kitazato, Minami-ku, Sagamihara 252-0374, Japan
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Sakuraya A, Iida M, Imamura K, Ando E, Arima H, Asaoka H, Eguchi H, Hidaka Y, Hino A, Inoue A, Inoue R, Iwanaga M, Kobayashi Y, Komase Y, Otsuka Y, Sasaki N, Shimazu A, Tsuno K, Watanabe K, Kawakami N, Tsutsumi A. A proposed definition of participatory organizational interventions. J Occup Health 2023; 65:e12386. [PMID: 36737041 PMCID: PMC9897955 DOI: 10.1002/1348-9585.12386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 01/10/2023] [Accepted: 01/14/2023] [Indexed: 02/05/2023] Open
Abstract
Participatory organizational interventions offer an effective way to promote occupational safety and health. Despite an increasing number of studies, a common definition of participatory organizational interventions has yet to be established. Therefore, we aimed to form a definition using the following process. First, we developed a tentative draft definition of organizational interventions and participatory elements, based on the relevant literature. The tentative definition was revised in several rounds of an extensive discussion by the authors. This resulted in the draft definition. We asked 15 selected international experts in occupational safety and health to review and comment on the draft definition. We carefully reviewed their comments, and formulated our final proposed definition. To summarize the key points of the final version of the definition, organizational interventions are planned actions that primarily directly target working conditions with the aim of promoting and maintaining of the highest degree of physical, mental, and social well-being of workers in all occupations. In addition, as participatory elements of organizational interventions in the final definition, ideally, all workers participate in every step of the intervention, while participating in part of the steps of the intervention in some cases. Furthermore, in principle, all workers participate in each step of intervention, while it is also acceptable that only elected representatives among workers participate in the intervention.
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Affiliation(s)
- Asuka Sakuraya
- Department of Digital Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Mako Iida
- Department of Psychiatric Nursing, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Kotaro Imamura
- Department of Digital Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Emiko Ando
- Center for Cancer Control and Information ServicesNational Cancer CenterTokyoJapan
| | | | - Hiroki Asaoka
- Department of Psychiatric Nursing, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Hisashi Eguchi
- Department of Mental HealthInstitute of Industrial Ecological Sciences, University of Occupational and Environmental Health, JapanKitakyushuJapan
| | - Yui Hidaka
- Department of Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
- Japan Society for the Promotion of ScienceTokyoJapan
| | - Ayako Hino
- Department of Mental HealthInstitute of Industrial Ecological Sciences, University of Occupational and Environmental Health, JapanKitakyushuJapan
| | - Akiomi Inoue
- Institutional Research Center, University of Occupational and Environmental Health, JapanKitakyushuJapan
| | - Reiko Inoue
- Department of Public HealthKitasato University School of MedicineSagamiharaJapan
| | - Mai Iwanaga
- Department of Community Mental Health and LawNational Institute of Mental Health, National Center of Neurology and PsychiatryTokyoJapan
| | - Yuka Kobayashi
- Department of Clinical Psychology, Faculty of Social Policy & AdministrationHosei UniversityTokyoJapan
| | - Yu Komase
- Department of Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
| | | | - Natsu Sasaki
- Department of Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
| | | | - Kanami Tsuno
- School of Health InnovationKanagawa University of Human ServicesKawasakiJapan
| | - Kazuhiro Watanabe
- Department of Public HealthKitasato University School of MedicineSagamiharaJapan
| | - Norito Kawakami
- Department of Digital Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Akizumi Tsutsumi
- Department of Public HealthKitasato University School of MedicineSagamiharaJapan
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17
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Sasaki N, Kuroda R, Mikami Y, Tsuno K, Imamura K, Nishi D, Kawakami N. Working environment at home and mental health in employees working from home in Japan during COVID-19 pandemic: A cross-sectional study. J Occup Health 2023; 65:e12410. [PMID: 37337405 PMCID: PMC10279940 DOI: 10.1002/1348-9585.12410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 04/24/2023] [Accepted: 05/13/2023] [Indexed: 06/21/2023] Open
Abstract
OBJECTIVES This cross-sectional study aimed to examine the associations of a poor working environment at home with psychological distress and psychosomatic symptoms in employees working from home in Japan during the COVID-19 pandemic. METHODS The data obtained in October 2021 from an online cohort of full-time employees (E- COCO- J) were used. Participants who worked from home for at least some days per month were included. The poor working environment at home was assessed using 11 items based on the Japanese Ministry of Health, Labour and Welfare recommended checklist. The score ranged from 0 to 11. Psychological distress and psychosomatic symptoms were measured by the Brief Job Stress Questionnaire (BJSQ). The associations between total scores of poor working environment and outcomes were examined by multiple regression analysis, adjusted by age, sex, education, living with family, frequencies of working from home, company size, job demand, job control, and workplace social support. RESULTS Two hundred twenty-six employees who were working at home were included. The mean of the summed scores of poor working environments at home was 2.75. After adjusting the covariates, summed scores of poor working environments were significantly associated with high psychological distress (standardized β = 0.21, P = .003) and with high psychosomatic symptoms (β = 0.19, P = .005). For each poor environment, lack of ventilation and difficulty staying hydrated or resting were significantly associated with both outcomes. CONCLUSIONS Even after adjusting for job stressors and support, working environments at home were associated with employees' mental health. Appropriate measures and education may be needed.
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Affiliation(s)
- Natsu Sasaki
- Department of Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Reiko Kuroda
- Division for Environment, Health, and SafetyThe University of TokyoTokyoJapan
| | - Yuta Mikami
- School of Integrated Health Sciences, Faculty of MedicineThe University of TokyoTokyoJapan
| | - Kanami Tsuno
- School of Health InnovationKanagawa University of Human ServicesKawasakiJapan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
- Department of Digital Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Daisuke Nishi
- Department of Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Norito Kawakami
- Department of Digital Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
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18
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Kida H, Kawakami R, Sakai K, Otaku H, Imamura K, Han TZ, Sakimoto Y, Mitsushima D. Motor training promotes both synaptic and intrinsic plasticity of layer V pyramidal neurons in the primary motor cortex. J Physiol 2023; 601:335-353. [PMID: 36515167 DOI: 10.1113/jp283755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 11/23/2022] [Indexed: 12/15/2022] Open
Abstract
Layer V neurons in the primary motor cortex (M1) are important for motor skill learning. Since pretreatment of either CNQX or APV in rat M1 layer V impaired rotor rod learning, we analysed training-induced synaptic plasticity by whole-cell patch-clamp technique in acute brain slices. Rats trained for 1 day showed a decrease in small inhibitory postsynaptic current (mIPSC) frequency and an increase in the paired-pulse ratio of evoked IPSCs, suggesting a transient decrease in presynaptic GABA release in the early phase. Rats trained for 2 days showed an increase in miniature excitatory postsynaptic current (mEPSC) amplitudes/frequency and elevated AMPA/NMDA ratios, suggesting a long-term strengthening of AMPA receptor-mediated excitatory synapses. Importantly, rotor rod performance in trained rats was correlated with the mean mEPSC amplitude and the frequency obtained from that animal. In current-clamp analysis, 1-day-trained rats transiently decreased the current-induced firing rate, while 2-day-trained rats returned to pre-training levels, suggesting dynamic changes in intrinsic properties. Furthermore, western blot analysis of layer V detected decreased phosphorylation of Ser408-409 in GABAA receptor β3 subunits in 1-day-trained rats, and increased phosphorylation of Ser831 in AMPA receptor GluA1 subunits in 2-day-trained rats. Finally, live-imaging analysis of Thy1-YFP transgenic mice showed that the training rapidly recruited a substantial number of spines for long-term plasticity in M1 layer V neurons. Taken together, these results indicate that motor training induces complex and diverse plasticity in M1 layer V pyramidal neurons. KEY POINTS: Here we examined motor training-induced synaptic and intrinsic plasticity of layer V pyramidal neurons in the primary motor cortex. The training reduced presynaptic GABA release in the early phase, but strengthened AMPA receptor-mediated excitatory synapses in the later phase: acquired motor performance after training correlated with the strength of excitatory synapses rather than inhibitory synapses. As to the intrinsic property, the training transiently decreased the firing rate in the early phase, but returned to pre-training levels in the later phase. Western blot analysis detected decreased phosphorylation of Ser408-409 in GABAA receptor β3 subunits in the acute phase, and increased phosphorylation of Ser831 in AMPA receptor GluA1 subunits in the later phase. Live-imaging analysis of Thy1-YFP transgenic mice showed rapid and long-term spine plasticity in M1 layer V neurons, suggesting training-induced increases in self-entropy per spine.
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Affiliation(s)
- H Kida
- Department of Physiology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - R Kawakami
- Department of Molecular Medicine for Pathogenesis, Graduate School of Medicine, Ehime University, Ehime, Japan
| | - K Sakai
- Department of Physiology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - H Otaku
- Department of Physiology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - K Imamura
- Department of Physiology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Thiri-Zin Han
- Department of Physiology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Y Sakimoto
- Department of Physiology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Dai Mitsushima
- Department of Physiology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan.,The Research Institute for Time Studies, Yamaguchi University, Yamaguchi, Japan
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Obikane E, Sasaki N, Imamura K, Nozawa K, Vedanthan R, Cuijpers P, Shimazu T, Kamada M, Kawakami N, Nishi D. Usefulness of Implementation Outcome Scales for Digital Mental Health (iOSDMH): Experiences from Six Randomized Controlled Trials. Int J Environ Res Public Health 2022; 19:15792. [PMID: 36497867 PMCID: PMC9737881 DOI: 10.3390/ijerph192315792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/22/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
OBJECTIVES Measuring implementation outcomes for digital mental health interventions is essential for examining the effective delivery of these interventions. The "Implementation Outcome Scale of Digital Mental Health" (iOSDMH) has been validated and used in several trials. This study aimed to compare the iOSDMH for participants in six randomized controlled trials (RCTs) involving web-based interventions and to discuss the implications of the iOSDMH for improving the interventions. Additionally, this study examined the associations between iOSDMH scores and program completion rate (adherence). METHODS Variations in total scores and subscales of the iOSDMH were compared in six RCTs of digital mental health interventions conducted in Japan. The web-based intervention programs were based on cognitive behavioral therapy (2 programs), behavioral activation (1 program), acceptance and commitment (1 program), a combination of mindfulness, behavioral activation, and physical activity (1 program), and government guidelines for suicide prevention (1 program). Participants were full-time employees (2 programs), perinatal women (2 programs), working mothers with children (1 program), and students (1 program). The total score and subscale scores were tested using analysis of variance for between-group differences. RESULTS Total score and subscale scores of the iOSDMH among six trials showed a significant group difference, reflecting users' perceptions of how each program was implemented, including aspects such as acceptability, appropriateness, feasibility, overall satisfaction, and harm. Subscale scores showed positive associations with completion rate, especially in terms of acceptability and satisfaction (R-squared = 0.93 and 0.89, respectively). CONCLUSIONS The iOSDMH may be a useful tool for evaluating participants' perceptions of features implemented in web-based interventions, which could contribute to improvements and further development of the intervention.
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Affiliation(s)
- Erika Obikane
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
- Department of Social Medicine, National Center for Child Health and Development, Tokyo 157-0074, Japan
| | - Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Kyosuke Nozawa
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Rajesh Vedanthan
- Department of Population Health, Grossman School of Medicine, New York University, New York, NY 10016, USA
| | - Pim Cuijpers
- Department of Clinical, Neuro and Developmental Psychology, Vrije Universiteit Amsterdam, 1081 Amsterdam, The Netherlands
| | - Taichi Shimazu
- Division of Behavioral Sciences, Institute for Cancer Control, National Cancer Center, Tokyo 04-0045, Japan
| | - Masamitsu Kamada
- Department of Health Education and Health Sociology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Norito Kawakami
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Daisuke Nishi
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
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Ogawa S, Tomonaga H, Sasaki N, Kuroda R, Tsuno K, Imamura K, Kawakami N. [Experience, user satisfaction, and difficulties of online occupational health consultations during the COVID-19 pandemic: A cross-sectional survey of workers in Japan]. Sangyo Eiseigaku Zasshi 2022; 64:345-353. [PMID: 35034935 DOI: 10.1539/sangyoeisei.2021-034-e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVES COVID-19 has led to an increased use of online consultations in occupational health. We examined experience, satisfaction, and difficulties with online consultations during the first year after the COVID-19 pandemic by surveying a sample of workers. METHODS An online survey was conducted in March 2021 among full-time employees of an online panel survey (E-COCO-J: The Employee Cohort Study on the COVID-19 Pandemic in Japan). Respondents were asked to report whether they had online or face-to-face consultations with occupational health professionals in the past year, their level of satisfaction, and their difficulties and problems related to the online consultations. RESULTS Of the 1,153 respondents, 1,102 (excluding those who were unemployed or on leave) were included in the analysis. Fifty respondents had had online consultations in the past year and 57 had face-to-face consultations. The proportion of respondents who reported satisfaction with online consultations was high (more than 70%) for general health, follow-ups, and guidance consultations, among others. However, the proportion of satisfaction with online occupational consultations was low (less than 40%) for employees who worked long hours, or took leave or returned to work. Over 30% of the respondents indicated that the difficulties with online consultations were due to incongruence with their expectations ("I preferred a face-to-face consultation instead of an online one"), quality of communication ("I did not feel like I was able to consult sufficiently"), and concerns about confidentiality ("I was worried that someone could hear our conversation"). CONCLUSION The experience of online consultations was similar to that of face-to-face consultations. Satisfaction with online occupational consultations for those who worked long hours and those who took leave or returned to work was low. In the online consultation for occupational health, the occupational health professional may be required to judge its suitability depending on type of the consultation and take necessary consideration and measures to maintain the quality of the online consultation.
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Affiliation(s)
- Sayaka Ogawa
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo
| | - Haruka Tomonaga
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo
| | - Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo
| | - Reiko Kuroda
- Division of Environmental Safety, The University of Tokyo
| | - Kanami Tsuno
- School of Health Innovation, Kanagawa University of Human Services
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo
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21
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Nishi D, Imamura K, Watanabe K, Obikane E, Sasaki N, Yasuma N, Sekiya Y, Matsuyama Y, Kawakami N. The preventive effect of internet-based cognitive behavioral therapy for prevention of depression during pregnancy and in the postpartum period (iPDP): a large scale randomized controlled trial. Psychiatry Clin Neurosci 2022; 76:570-578. [PMID: 36114656 PMCID: PMC9826475 DOI: 10.1111/pcn.13458] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/30/2022] [Accepted: 07/27/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND Prevention of perinatal depression beginning from the antenatal period is essential. Therefore, this study aimed to investigate the effectiveness of recently developed internet-delivered cognitive behavioral therapy (iCBT) for preventing the onset of a major depressive episode (MDE) in the third trimester and at 3 months postpartum. METHODS This is a two-arm, parallel-group, general-information controlled, randomized controlled trial. Participants were 5017 pregnant women at 16-20 weeks' gestation without MDE at baseline. They were randomly assigned to an iCBT (intervention; n = 2509) or general-information (control; n = 2508) group, stratified by psychological distress at baseline. The primary outcomes were the numbers of new MDE onsets, measured using the World Health Organization Composite International Diagnostic Interview 3.0, at 32 weeks' gestation and at 3 months postpartum. RESULTS New MDE onset was reported by 59 participants (2.35%) in the intervention group and 73 (2.91%) in the control group during follow-up. Compared with the control group, the hazard ratio (HR) of MDE in the intervention group was 0.85 (95% CI 0.61-1.20), which was not significantly different. Among participants who scored between 5 and 8 on K6 at baseline, 10 (1.37%) in the intervention group reported new onset of MDE, compared with 28 (3.81%) in the control group, and the HR of MDE was 0.38 (95%CI 0.19-0.79). CONCLUSIONS No intervention effect was found for iCBT in preventing new onset of perinatal MDE. iCBT might prevent perinatal depression only among pregnant women with subthreshold depressive symptoms. TRIAL REGISTRATION UMIN000038190.
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Affiliation(s)
- Daisuke Nishi
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Department of Public Mental Health Research, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kazuhiro Watanabe
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Department of Public Health, Kitasato University School of Medicine, Sagamihara, Japan
| | - Erika Obikane
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | | | - Yuki Sekiya
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yutaka Matsuyama
- Department of Biostatistics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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22
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Yasuma N, Imamura K, Watanabe K, Iida M, Takano A. Adolescent cannabis use and the later onset of bipolar disorder: protocol for a systematic review and meta-analysis of prospective cohort studies. Neuropsychopharmacol Rep 2022; 42:538-542. [PMID: 36284510 PMCID: PMC9773718 DOI: 10.1002/npr2.12296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 09/29/2022] [Accepted: 10/08/2022] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Cannabis is used by adolescents worldwide. Adolescents are more susceptible to the psychological effects of cannabis because their brains are still developing. Cannabis use in adolescents has been reportedly associated with later onset of bipolar disorder. AIMS The purpose of this study is to systematically review and analyze longitudinal prospective cohort studies of cannabis use during adolescence and evaluate the risk of developing bipolar disorder. METHODS We defined the participants, exposures, comparisons, and outcomes (PECO) as follows: (P) adolescents in the 10-19-year age group at the baseline survey; (E) cannabis use at least once during lifetime; (C) never-used cannabis over lifetime; and (O) the onset of bipolar disorder. A systematic search for published prospective cohort studies will be conducted by using the following electronic databases: PubMed, EMBASE, PsycINFO, and Japan Medical Abstracts Society. The quality assessment will be performed by using Risk Of Bias In Non-randomized Studies - of Interventions. Meta-analysis will be done if the included studies that exist are more than three. Heterogeneity will be assessed using Cochran's Q test and I2 . Funnel plots and Egger's test will be done to assess publication bias. DISCUSSION This study will clarify the association between adolescent cannabis use and the subsequent development of bipolar disorder, which could be useful for future research directions and policy making.
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Affiliation(s)
- Naonori Yasuma
- Department of Community Mental Health and LawNational Institute of Mental Health, National Center of Neurology and PsychiatryTokyoJapan,Ageonomori ClinicSaitamaJapan
| | - Kotaro Imamura
- Department of Digital Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Kazuhiro Watanabe
- Department of Public HealthKitasato University School of MedicineSagamiharaJapan
| | - Mako Iida
- Department of Psychiatric Nursing, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Ayumi Takano
- Department of Mental Health and Psychiatric NursingTokyo Medical and Dental UniversityTokyoJapan
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23
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Sasaki N, Kuroda R, Tsuno K, Imamura K, Kawakami N. The effect of job strain and worksite social support on reported adverse reactions of COVID-19 vaccine: A prospective study of employees in Japan. J Occup Health 2022; 64:e12356. [PMID: 36271320 PMCID: PMC9587126 DOI: 10.1002/1348-9585.12356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 08/19/2022] [Accepted: 08/23/2022] [Indexed: 11/05/2022] Open
Abstract
Objectives This prospective study aimed to examine the association of psychosocial working conditions with adverse reactions after receiving COVID‐19 vaccination in a sample of employees in Japan. Methods The data were retrieved from an online panel of full‐time employees (E‐COCO‐J). The analysis included participants who were employed and were not vaccinated at baseline (June 2021) but received vaccination at a 4‐month follow‐up (October 2021). An 11‐item scale measured the adverse reactions. Four types of psychosocial working conditions (i.e., job demands, job control, and supervisor and coworker support) were measured using the Brief Job Stress Questionnaire. Multiple linear regression analyses were conducted to examine the relationship between the psychosocial working conditions and adverse reactions of COVID‐19 vaccines, adjusting for socioeconomic variables, chronic disease, the number of vaccination, type of vaccine, anxiety for adverse reactions, fear and worry about COVID‐19, and psychological distress at baseline. Results Overall, 747 employees were included in the analysis. The average number of adverse reactions was 3.8 (standard deviation = 2.2): Arm pain (81.1%), fatigues (64.1%), muscle pains (63.3%), and fever (37.5°C+) (53.5%) were reported more frequently. Coworker support score was significantly and negatively associated with the numbers of adverse reactions (standardized β = −0.100, P = .023). Women, young age, second‐time vaccination, Moderna, and high psychological distress were significantly associated with adverse reactions. Conclusions Employees with low coworker support may be more likely to have adverse reactions after vaccinations. The findings of this study could support that increasing workplace support may reduce adverse reactions.
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Affiliation(s)
- Natsu Sasaki
- Department of Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Reiko Kuroda
- Division for Environment, Health, and SafetyThe University of TokyoTokyoJapan
| | - Kanami Tsuno
- School of Health InnovationKanagawa University of Human ServicesKawasakiKanagawaJapan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
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Hidaka Y, Watanabe K, Imamura K, Tatha O, Kawakami N. Reliability and validity of the Chinese version of the New Brief Job Stress Questionnaire (New BJSQ) among workers in China. Ind Health 2022; 60:407-419. [PMID: 34719579 PMCID: PMC9539333 DOI: 10.2486/indhealth.2021-0027] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This study aimed to develop the Chinese version of the New Brief Job Stress Questionnaire (New BJSQ) and investigate its reliability and validity. The survey was administered at two time-points separated by a two-week interval among Chinese workers. The Chinese version of the New BJSQ was developed according to the international guidelines. Cronbach's alpha, intra-class correlation coefficients (ICCs), and Pearson correlation coefficient were calculated to assess the reliability. A variance explained by the first factor was calculated to examine factor-based validity, and confirmatory factor analysis was performed (CFA) to determine the construct validity. Baseline and follow-up analyses included 516 and 52 workers, respectively. In most scales, sufficient internal consistency and test-retest reliability were observed, and principal component analyses demonstrated that the first factor explained more than 50% proportion of the variance. CFA showed that the four-factor model (Job demands, Task-level job resources, Workgroup-level job resources, and Organizational-level job resources) demonstrated a moderate fit, similar to the original version. The Chinese version of New BJSQ showed good reliability and moderate validity. Future studies should explore content and construct validities and the factor structure of the Chinese version of the New BJSQ in more detail.
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Affiliation(s)
- Yui Hidaka
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Japan
- Japan Society for the Promotion of Science, Japan
| | - Kazuhiro Watanabe
- Department of Public Health, Kitasato University School of Medicine, Japan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Japan
| | - Oraphan Tatha
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Japan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Japan
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25
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Kuribayashi K, Takano A, Inagaki A, Imamura K, Kawakami N. Effect of stress management based on cognitive-behavioural therapy on nurses as a universal prevention in the workplace: a systematic review and meta-analysis protocol. BMJ Open 2022; 12:e062516. [PMID: 36123105 PMCID: PMC9486364 DOI: 10.1136/bmjopen-2022-062516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
INTRODUCTION The mental health status of nurses affects not only their well-being but also the organisational outcomes and the quality of patient care. Hence, stress management strategies are critical as a universal prevention measure that address an entire population and are not directed at a specific risk group to maintain nurses' mental health in the workplace. No systematic review or meta-analysis has been conducted to evaluate the effect of cognitive-behavioural therapy (CBT) that specifically focuses on universal prevention. Therefore, the aim of this study is to examine the effectiveness that is reported in published randomised controlled trial (RCT) studies. METHODS AND ANALYSIS This systematic review and meta-analysis will analyse published studies selected from electronic databases (ie, Cochrane Central Register of Controlled Trials, PubMed, Cumulative Index to Nursing and Allied Health Literature, PsycINFO, PsycARTICLES, Web of Science and the Japan Medical Abstracts Society). The inclusion criteria for studies are that they (1) were conducted to assess the effect of CBT on the mental health of nurses as a universal prevention, (2) used an RCT design and (3) provided sufficient results (sample sizes, means and SD) to estimate the pooled effect sizes with 95% CIs. Studies will be excluded if they only targeted nurses who had been screened as being at high risk in terms of their mental health and indicated that they required the prevention. The methodological quality of the included studies will be assessed using the Cochrane Collaboration's risk of bias tool. ETHICS AND DISSEMINATION Ethical approval is not required because this study is based on information obtained from previous studies. The results and findings of this study will be submitted for publication in a peer-reviewed international scientific journal. Results from this study will be helpful when implementing CBT strategies for nurses as a universal preventative measure in the workplace and for managing stress-related outcomes. PROSPERO REGISTRATION NUMBER CRD42020152837.
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Affiliation(s)
- Kazuto Kuribayashi
- Department of Mental Health and Psychiatric Nursing, Tokyo Medical and Dental University Graduate School of Health Care Sciences, 1-5-45 Yushima, Bunkyo-ku, Tokyo, Japan
| | - Ayumi Takano
- Department of Mental Health and Psychiatric Nursing, Tokyo Medical and Dental University Graduate School of Health Care Sciences, 1-5-45 Yushima, Bunkyo-ku, Tokyo, Japan
| | - Akiko Inagaki
- Division of Nursing, Faculty of Healthcare, Tokyo Healthcare University, 4-1-17 Higashigotanda, Shinagawa-ku, Tokyo, Japan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
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Sasaki N, Imamura K, Watanabe K, Hidaka Y, Ando E, Eguchi H, Inoue A, Tsuno K, Komase Y, Iida M, Otsuka Y, Sakuraya A, Asai Y, Iwanaga M, Kobayashi Y, Inoue R, Shimazu A, Tsutsumi A, Kawakami N. The impact of workplace psychosocial factors on menstrual disorders and infertility: a protocol for a systematic review and meta-analysis. Syst Rev 2022; 11:195. [PMID: 36071533 PMCID: PMC9581335 DOI: 10.1186/s13643-022-02066-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 08/31/2022] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Workplace environment, especially psychosocial factors at work such as job strain, workplace social support, and shift work, may affect the menstrual abnormalities and fertility of female workers. However, the association between psychosocial factors at work and menstrual abnormalities or fertility is not well understood. To address this relationship, we will conduct a systematic review and a meta-analysis of the literature that has utilized a longitudinal or prospective cohort design. METHODS AND ANALYSIS The inclusion criteria for this systematic review and meta-analysis are defined as follows: (P) adult female workers (over 18 years old), (E) the presence of adverse psychosocial factors at work, (C) the absence of adverse psychosocial factors at work, and (O) any menstrual cycle disorders, menstrual-related symptoms, or fertility. The MEDLINE, Embase, PsycINFO, PsycArticles, and Japan Medical Abstracts Society electronic databases will be used to search for published studies. The statistical synthesis of the studies included in the meta-analysis will be conducted to estimate pooled coefficients and 95% CIs. For the main analysis, we will synthesize measures of association between psychosocial factors at work and menstrual-related disorders/symptoms. At least three eligible studies will have to be gathered to conduct a meta-analysis; otherwise (i.e., if only one or two studies will be eligible and included), the results will be presented in a narrative table. We will use the Risk of Bias in Non-randomized Studies of Interventions (ROBINS-I) to determine the quality of selected studies. To assess meta-bias, Egger's test, along with a funnel plot, will be used to check for publication bias. Lastly, we will examine heterogeneity using the χ2 test with Cochran's Q statistic and I2. ETHICS AND DISSEMINATION The results and findings will be submitted and published in a scientific peer-reviewed journal and will be disseminated broadly to researchers and policymakers interested in the translatability of scientific evidence into good practices. SYSTEMATIC REVIEW REGISTRATION The study protocol was registered at the UMIN registry (registration number: UMIN000039488). The registration date is on 14 Feb 2020. URL: https://upload.umin.ac.jp/cgi-bin/ctr/ctr_view_reg.cgi?recptno=R000044704.
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Affiliation(s)
- Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kotaro Imamura
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
| | - Kazuhiro Watanabe
- Department of Public Health, Kitasato University School of Medicine, Sagamihara, Japan
| | - Yui Hidaka
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Emiko Ando
- Institute for Cancer Control, National Cancer Center, Tokyo, Japan
| | - Hisashi Eguchi
- Department of Mental Health, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Akiomi Inoue
- Institutional Research Center, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Kanami Tsuno
- School of Health Innovation, Kanagawa University of Human Services, Kawasaki, Japan
| | - Yu Komase
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Mako Iida
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yasumasa Otsuka
- Faculty of Human Sciences, University of Tsukuba, Tokyo, Japan
| | - Asuka Sakuraya
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Yumi Asai
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Mai Iwanaga
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yuka Kobayashi
- Faculty of Social Policy & Administration, Hosei University, Tokyo, Japan
| | - Reiko Inoue
- Department of Public Health, Kitasato University School of Medicine, Sagamihara, Japan
| | | | - Akizumi Tsutsumi
- Department of Public Health, Kitasato University School of Medicine, Sagamihara, Japan
| | - Norito Kawakami
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
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Asaoka H, Sasaki N, Imamura K, Kuroda R, Tsuno K, Kawakami N. Effects of workplace measures against COVID-19 on psychological distress of full-time employees: A 12-month prospective study in the COVID-19 pandemic. Scand J Work Environ Health 2022; 48:468-478. [PMID: 35575195 PMCID: PMC9888436 DOI: 10.5271/sjweh.4030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVE This study aimed to investigate the prospective effects of corporate and organizational workplace measures against COVID-19 on reducing employees` psychological distress during a 12-month follow-up in the COVID-19 pandemic. METHODS Data were retrieved from an online longitudinal panel survey of full-time employees in Japan, with the 1st survey in March 2020, and the 2nd to 6th surveys in May, August, November 2020, February and March 2021, respectively. Seven area-specific workplace measures were assessed using a self-report 23-item scale at the 2nd follow-up. Psychological distress was measured using an 18-item scale of the Brief Job Stress Questionnaire at each survey. Linear regressions and mixed model analysis were conducted of psychological distress at follow-ups on scores of the area-specific workplace measures, adjusting for psychological distress and other covariates at the 1st survey. RESULTS A total of 941 employees responded at baseline; most of them (86.9-90.9%) participated in the follow-up surveys. Linear regression analysis indicated that workplace measures of facilitating employees' preventive measures (ie, hygiene behaviors) statistically significantly and negatively correlated with psychological distress at the 5th survey [b=-0.518, standard error (SE) 0.259, P=0.046]. A statistically significant and negative interaction between the scores and time of follow-up was observed in the mixed model analysis (b=-0.096, SE 0.047, P=0.041). No such correlation or interaction was found for any of other subcategorical workplace measures. CONCLUSIONS The study provides prospective evidence for a protective effect of workplace measures to facilitate employee's hygiene behaviors on reducing psychological distress of full-time employees in the COVID-19 pandemic. The association seems stronger at a later follow-up.
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Affiliation(s)
- Hiroki Asaoka
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan,Department of Public Mental Health Research, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Reiko Kuroda
- Division for Environment, Health and Safety, The University of Tokyo, Tokyo, Japan
| | - Kanami Tsuno
- School of Health Innovation, Kanagawa University of Human Services, Kanagawa, Japan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan,Junpukai Foundation, Okayama, Japan,
Correspondence to: Norito Kawakami, Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan. Junpukai Foundation, 2-3-1, Daiku, Kita-ku, Okayama 700-0913, Japan. [E-mail: ]
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Sasaki N, Inoue A, Asaoka H, Sekiya Y, Nishi D, Tsutsumi A, Imamura K. The Survey Measure of Psychological Safety and Its Association with Mental Health and Job Performance: A Validation Study and Cross-Sectional Analysis. Int J Environ Res Public Health 2022; 19:9879. [PMID: 36011522 PMCID: PMC9407795 DOI: 10.3390/ijerph19169879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/06/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
OBJECTIVES This study validated the Japanese version of O'Donovan et al.'s (2020) composite measure of the psychological safety scale and examined the associations of psychological safety with mental health and job-related outcomes. METHODS Online surveys were administered twice to Japanese employees in teams of more than three members. Internal consistency and test-retest reliability were tested using Cronbach's α and intra-class correlation coefficient (ICC), respectively. Structural validity was examined using confirmatory factor analysis (CFA) and exploratory factor analysis (EFA). Convergent validity was tested using Pearson's correlation coefficients. Multiple linear regression analyses were conducted to examine the relationship between psychological safety and psychological distress, work engagement, job performance, and job satisfaction. RESULTS Two hundred healthcare workers and 200 non-healthcare workers were analyzed. Internal consistency, test-retest reliability, and convergent validity were acceptable. CFA demonstrated poor fit, and EFA yielded a two-factor structure, with team leader as one factor and peers and team forming the second factor. The total score showed significant and expected associations with all outcomes in the adjusted model for all workers. CONCLUSIONS The Japanese version of the measure of the psychological safety scale presented good reliability and validity. Psychological safety is important for employees' mental health and performance.
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Affiliation(s)
- Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
- Department of Public Mental Health Research, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira 187-8553, Japan
| | - Akiomi Inoue
- Institutional Research Center, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Hiroki Asaoka
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Yuki Sekiya
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Daisuke Nishi
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
- Department of Public Mental Health Research, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira 187-8553, Japan
| | - Akizumi Tsutsumi
- Department of Public Health, School of Medicine, Kitasato University, Sagamihara 252-0374, Japan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
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Nozawa K, Ishii A, Asaoka H, Iwanaga M, Kumakura Y, Oyabu Y, Shinozaki T, Imamura K, Kawakami N, Miyamoto Y. Effectiveness of an Online Peer Gatekeeper Training Program for Postsecondary Students on Suicide Prevention in Japan: Protocol for a Randomized Controlled Trial. JMIR Res Protoc 2022; 11:e34832. [PMID: 35471412 PMCID: PMC9092229 DOI: 10.2196/34832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 02/21/2022] [Accepted: 02/21/2022] [Indexed: 11/13/2022] Open
Abstract
Background
Postsecondary student suicide is one of Japan’s most severe public health problems. Gatekeeper training (GKT) programs are a generally recommended suicide prevention intervention in Japan. For suicide countermeasures, an online program tailored to students may enhance self-efficacy as a gatekeeper.
Objective
This study aims to describe a research protocol to investigate the effect of a newly developed internet-delivered online peer GKT program to improve postsecondary student self-efficacy as gatekeepers for suicide countermeasures in Japan.
Methods
This study is a 2-arm, parallel, randomized controlled trial with a 1:1 (intervention: waiting list) allocation. Participants (n=320) will be recruited, and those who meet the inclusion criteria will be randomly allocated to the intervention or waiting list control group. An approximately 85-minute, 6-section, internet-based gatekeeper program for postsecondary students has been developed that includes videos to help participants acquire skills as gatekeepers. The intervention group will complete the program within 10 days. The primary outcome, self-efficacy as a gatekeeper, is measured using the Gatekeeper Self-Efficacy Scale at baseline, immediately after taking the program, and 2 months after the survey after completing the program follow-up. To compare the primary outcomes, a t test, where the significance level is 5% (2-sided), will be used to test the intervention effect on an intention-to-treat basis.
Results
The study was at the stage of data collection at the time of submission. We recruited participants for this study during August and September 2021, and data collection will continue until December 2021. The data analysis related to the primary outcome will start in December 2021, and we hope to publish the results in 2022 or 2023.
Conclusions
This is the first study to investigate the effectiveness of an online GKT program for postsecondary students to improve self-efficacy as a gatekeeper using a randomized controlled trial design. The study will explore the potential of an online peer gatekeeper program for postsecondary students that can be disseminated online to a large number of students with minimal cost.
Trial Registration
University Hospital Medical Information Network Clinical Trials Registry UMIN000045325; https://upload.umin.ac.jp/cgi-open-bin/ctr/ctr_view.cgi?recptno=R000051685
International Registered Report Identifier (IRRID)
DERR1-10.2196/34832
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Affiliation(s)
- Kyosuke Nozawa
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Ayaka Ishii
- Specified Nonprofit Corporation Light Ring, Tokyo, Japan
| | - Hiroki Asaoka
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Mai Iwanaga
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yousuke Kumakura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yuri Oyabu
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Tomohiro Shinozaki
- Department of Information and Computer Technology, Tokyo University of Science, Tokyo, Japan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yuki Miyamoto
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Sasaki N, Kuroda R, Tsuno K, Imamura K, Kawakami N. COVID-19 vaccination did not improve employee mental health: A prospective study in an early phase of vaccination in Japan. Neuropsychopharmacol Rep 2022; 42:230-232. [PMID: 35411665 PMCID: PMC9216361 DOI: 10.1002/npr2.12250] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 03/08/2022] [Accepted: 03/08/2022] [Indexed: 11/28/2022] Open
Abstract
Objectives This study aimed to examine the effectiveness of vaccination to improve mental health among employees in Japan based on a prospective study. Methods The data were retrieved from the Employee Cohort Study conducted during the COVID‐19 pandemic in Japan (E‐ COCO‐J) at T1 (4–10 February 2021) and T2 (22–29 June 2021). Psychological distress was measured by using an 18‐item scale of the Brief Job Stress Questionnaire (BJSQ). The analytic sample was limited to individuals employed at both T1 and T2 without missing covariates. Vaccination status was measured at T2. Statistical analysis was conducted to test the differential change in the psychological distress at T1 and T2 with the time × group interactions by using repeated ANOVA, adjusting for the covariates (gender, age, marital status, education, chronic disease, company size, industry, and occupation). Results Of the total sample (N = 948), 105 (11.1%) were vaccinated at least once at T2. The crude mean scores of psychological distress at T1 and T2 were 41.8 and 42.0 for vaccinated participants and 41.2 and 41.2 for nonvaccinated participants, respectively, with no significant effect of having been vaccinated (Cohen's d = 0.02, P = 0.833). After adjusting the covariates, there was no significance (P = 0.446). Conclusions The COVID‐19 vaccination was supposed to have a limited effect on mental health among Japanese employees in an early phase of vaccination. To keep providing mental health care for employees is important even after starting the vaccination program.
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Affiliation(s)
- Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Reiko Kuroda
- Division for Environment, Health, and Safety, The University of Tokyo, Tokyo, Japan
| | - Kanami Tsuno
- School of Health Innovation, Kanagawa University of Human Services, Yokosuka, Japan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Sakuraya A, Shimazu A, Imamura K, Kawakami N. Effects of a Job Crafting Intervention Program on Work Performance Among Japanese Employees: An Analysis of Secondary Outcomes of a Randomized Controlled Trial. J Occup Environ Med 2022; 64:e202-e210. [PMID: 35019896 DOI: 10.1097/jom.0000000000002480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE This study reports a randomized controlled trial of the effect of a job crafting intervention program on work performance and job crafting (as secondary outcomes) among Japanese employees. METHODS Participants who satisfied the inclusion criteria were randomly allocated to an intervention (n = 138) or a control group (n = 143). Outcomes were measured at baseline and at 3-month and 6-month follow-up in both groups. RESULTS For the whole sample, the job crafting intervention program showed a nonsignificant effect on work performance and job crafting. However, the program showed a significant effect on these outcomes among younger participants (under 36years old). CONCLUSIONS The job crafting intervention program may not be sufficiently effective to improve work performance and job crafting for the whole sample of participants. However, it may be efficacious for younger workers.
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Affiliation(s)
- Asuka Sakuraya
- Division of Public Health, Department of Hygiene and Public Health, School of Medicine, Tokyo Women's Medical University, Shinjuku-ku (Dr Sakuraya); Faculty of Policy Management, Keio University, Fujisawa-shi, Kanagawa (Dr Shimazu); Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku (Dr Sakuraya, Dr Imamura, Dr Kawakami), Tokyo, Japan
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Imamura K, Sasaki N, Sekiya Y, Watanabe K, Sakuraya A, Matsuyama Y, Nishi D, Kawakami N. The Effect of the Imacoco Care Psychoeducation Website on Improving Psychological Distress Among Workers During the COVID-19 Pandemic: Randomized Controlled Trial. JMIR Form Res 2022; 6:e33883. [PMID: 35133972 PMCID: PMC8949678 DOI: 10.2196/33883] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/28/2021] [Accepted: 01/19/2022] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND The prolonged COVID-19 pandemic has affected mental health among workers. Psychoeducational intervention via a website could be effective for primary prevention of mental illness among workers in the current COVID-19 pandemic. OBJECTIVE The aim of this randomized controlled trial is to examine the effect of a newly developed online psychoeducational website named Imacoco Care on reducing psychological distress and fear about COVID-19 infection among workers. METHODS Participants in the study were recruited from registered members of a web survey company in Japan. Participants who fulfilled the eligibility criteria were randomly allocated to the intervention or control group. Participants in the intervention group were invited to access the Imacoco Care program within a month after the baseline survey. The Kessler Psychological Distress Scale (K6) and the Fear of COVID-19 Scale (FCV-19S) scores were obtained at baseline and at 1- and 3-month follow-ups. RESULTS A total of 1200 workers were randomly allocated to the intervention and control groups (n=600 [50%] per group). The Imacoco Care intervention group showed a significant favorable effect on K6 scores (P=.03) with a small effect size (ES; Cohen d=-0.14) and an adverse effect on FCV-19S scores (P=.01) with a small ES (Cohen d=0.16) at 3-month follow-up. In the per protocol analysis (including only participants who had read the Imacoco Care content at least 1 time), the Imacoco Care intervention group also showed a significant favorable effect on reducing K6 scores (P=.03), while an adverse effect on FCV-19S scores was not significant (P=.06) in the intervention group at 3-month follow-up. CONCLUSIONS A web-based psychoeducation approach may be effective for improving psychological distress among workers; however, it may be important not only to distribute information but also to encourage active engagement with the content of the program to prevent adverse effects of psychoeducational intervention. TRIAL REGISTRATION University Hospital Medical Information Network Clinical Trials Registry (UMIN-CTR) UMIN000042556; https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000048548.
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Affiliation(s)
- Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yuki Sekiya
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kazuhiro Watanabe
- Department of Public Health, Kitasato University School of Medicine, Sagamihara, Japan
| | - Asuka Sakuraya
- Division of Public Health, Department of Hygiene and Public Health, School of Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Yutaka Matsuyama
- Department of Biostatistics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Daisuke Nishi
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Public Mental Health Research, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Sasaki N, Imamura K, Nozawa K, Takeno H, Kuroda R, Tsuno K, Tsutsumi A, Kawakami N. 716 Working from home or commuting: mental health and its associated psychosocial factors at work from 9-month prospective study in the COVID-19 pandemic. Saf Health Work 2022. [PMCID: PMC9165756 DOI: 10.1016/s2093-7911(22)00094-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Ogawa S, Tomonaga H, Sasaki N, Kuroda R, Tsuno K, Imamura K, Kawakami N. Online occupational health consultations in the COVID-19 pandemic: experience, user satisfaction, and difficulties from a nationwide cross-sectional online survey of workers in Japan. Saf Health Work 2022. [PMCID: PMC8817305 DOI: 10.1016/j.shaw.2021.12.1296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Kawakami N, Sasaki N, Asaoka H, Kuroda R, Tsuno K, Imamura K. Employees’ worry about workplace measures against COVID-19 and the onset of major depressive episode: A 13-month prospective study of full-time employees. Saf Health Work 2022. [PMCID: PMC8817369 DOI: 10.1016/j.shaw.2021.12.1322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Sasaki N, Obikane E, Vedanthan R, Imamura K, Cuijpers P, Shimazu T, Kamada M, Kawakami N, Nishi D. Implementation Outcome Scales for Digital Mental Health (iOSDMH): Scale Development and Cross-sectional Study. JMIR Form Res 2021; 5:e24332. [PMID: 34817391 PMCID: PMC8663479 DOI: 10.2196/24332] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 01/15/2021] [Accepted: 10/06/2021] [Indexed: 11/30/2022] Open
Abstract
Background Digital mental health interventions are being used more than ever for the prevention and treatment of psychological problems. Optimizing the implementation aspects of digital mental health is essential to deliver the program to populations in need, but there is a lack of validated implementation outcome measures for digital mental health interventions. Objective The primary aim of this study is to develop implementation outcome scales of digital mental health for different levels of stakeholders involved in the implementation process: users, providers, and managers or policy makers. The secondary aim is to validate the developed scale for users. Methods We developed English and Japanese versions of the implementation outcome scales for digital mental health (iOSDMH) based on the literature review and panel discussions with experts in implementation research and web-based psychotherapy. The study developed acceptability, appropriateness, feasibility, satisfaction, and harm as the outcome measures for users, providers, and managers or policy makers. We conducted evidence-based interventions via the internet using UTSMeD, a website for mental health information (N=200). Exploratory factor analysis (EFA) was conducted to assess the structural validity of the iOSDMH for users. Satisfaction, which consisted of a single item, was not included in the EFA. Results The iOSDMH was developed for users, providers, and managers or policy makers. The iOSDMH contains 19 items for users, 11 items for providers, and 14 items for managers or policy makers. Cronbach α coefficients indicated intermediate internal consistency for acceptability (α=.665) but high consistency for appropriateness (α=.776), feasibility (α=.832), and harm (α=.777) of the iOSDMH for users. EFA revealed 3-factor structures, indicating acceptability and appropriateness as close concepts. Despite the similarity between these 2 concepts, we inferred that acceptability and appropriateness should be used as different factors, following previous studies. Conclusions We developed iOSDMH for users, providers, and managers. Psychometric assessment of the scales for users demonstrated acceptable reliability and validity. Evaluating the components of digital mental health implementation is a major step forward in implementation science.
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Affiliation(s)
- Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Erika Obikane
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Rajesh Vedanthan
- Department of Population Health, Grossman School of Medicine, New York University, New York, NY, United States
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Pim Cuijpers
- Department of Clinical, Neuro and Developmental Psychology, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Taichi Shimazu
- Behavioral Science Division, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Masamitsu Kamada
- Department of Health and Social Behavior, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Daisuke Nishi
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Sasaki N, Kuroda R, Tsuno K, Imamura K, Kawakami N. Increased suicidal ideation in the COVID-19 pandemic: an employee cohort in Japan. BJPsych Open 2021; 7:e199. [PMID: 34745649 PMCID: PMC8564023 DOI: 10.1192/bjo.2021.1035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 10/01/2021] [Accepted: 10/01/2021] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVES This study investigated the change in suicidal ideation and its risk factors among employees. A longitudinal cohort study was conducted, starting with the baseline online survey in March 2020 (T1), followed by May (T2), and August (T3). The change in suicidal ideation from T2 to T3 and relevant factors associated with suicidal ideation at T3 were examined. Suicidal ideation significantly increased between May and August 2020 among females, younger (under 39 years old), highly educated population, and those without pre-existing mental health conditions. Factors significantly associated with suicidal ideation were younger age, suicidal ideation at T2, and with pre-existing mental health conditions. Loneliness at T2 showed a significant association with suicidal ideation, if adjusting those without pre-existing mental health conditions. National and community support is needed to target people who are likely to be left behind, such as young people and those with pre-existing mental health conditions, in the pandemic. METHOD A longitudinal study was conducted with a cohort of full-time employees, starting with the baseline online survey in March 2020 (time point 1), followed by May (time point 2) and August (time point 3). The change in suicidal ideation from time point 2 to 3, and relevant factors associated with suicidal ideation at time point 3, were examined. RESULTS Suicidal ideation significantly increased between time points 2 and 3 among women, younger people (aged <39 years), those who were highly educated and those without pre-existing mental health conditions. Factors significantly associated with suicidal ideation were younger age, suicidal ideation at time point 2 and pre-existing mental health conditions. Loneliness at time point 2 showed a significant association with suicidal ideation when adjusting for those without pre-existing mental health conditions. CONCLUSIONS National and community support is needed to target people who are likely to be left behind, such as young people, those with pre-existing mental health conditions and those experiencing loneliness, in the COVID-19 pandemic.
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Affiliation(s)
- Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Japan
| | - Reiko Kuroda
- Division for Environment, Health, and Safety, The University of Tokyo, Japan
| | - Kanami Tsuno
- School of Health Innovation, Kanagawa University of Human Services, Japan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Japan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Japan
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Reins JA, Buntrock C, Zimmermann J, Grund S, Harrer M, Lehr D, Baumeister H, Weisel K, Domhardt M, Imamura K, Kawakami N, Spek V, Nobis S, Snoek F, Cuijpers P, Klein JP, Moritz S, Ebert DD. Efficacy and Moderators of Internet-Based Interventions in Adults with Subthreshold Depression: An Individual Participant Data Meta-Analysis of Randomized Controlled Trials. Psychother Psychosom 2021; 90:94-106. [PMID: 32544912 DOI: 10.1159/000507819] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 04/04/2020] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Evidence on effects of Internet-based interventions to treat subthreshold depression (sD) and prevent the onset of major depression (MDD) is inconsistent. OBJECTIVE We conducted an individual participant data meta-analysis to determine differences between intervention and control groups (IG, CG) in depressive symptom severity (DSS), treatment response, close to symptom-free status, symptom deterioration and MDD onset as well as moderators of intervention outcomes. METHODS Randomized controlled trials were identified through systematic searches via PubMed, PsycINFO, Embase and Cochrane Library. Multilevel regression analyses were used to examine efficacy and moderators. RESULTS Seven trials (2,186 participants) were included. The IG was superior in DSS at all measurement points (posttreatment: 6-12 weeks; Hedges' g = 0.39 [95% CI: 0.25-0.53]; follow-up 1: 3-6 months; g = 0.30 [95% CI: 0.15-0.45]; follow-up 2: 12 months, g = 0.27 [95% CI: 0.07-0.47], compared with the CG. Significantly more participants in the IG than in the CG reached response and close to symptom-free status at all measurement points. A significant difference in symptom deterioration between the groups was found at the posttreatment assessment and follow-up 2. Incidence rates for MDD onset within 12 months were lower in the IG (19%) than in the CG (26%). Higher initial DSS and older age were identified as moderators of intervention effect on DSS. CONCLUSIONS Our findings provide evidence for Internet-based interventions to be a suitable low-threshold intervention to treat individuals with sD and to reduce the incidence of MDD. This might be particularly true for older people with a substantial symptom burden.
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Affiliation(s)
- Jo Annika Reins
- Department of Health Psychology and Applied Biological Psychology, Institute of Psychology, Leuphana University Lueneburg, Lueneburg, Germany
| | - Claudia Buntrock
- Department of Clinical Psychology and Psychotherapy, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
| | | | - Simon Grund
- Leibniz Institute for Science and Mathematics Education, University of Kiel, Kiel, Germany
| | - Mathias Harrer
- Department of Clinical Psychology and Psychotherapy, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
| | - Dirk Lehr
- Department of Health Psychology and Applied Biological Psychology, Institute of Psychology, Leuphana University Lueneburg, Lueneburg, Germany
| | - Harald Baumeister
- Department of Clinical Psychology and Psychotherapy, Ulm University, Ulm, Germany
| | - Kiona Weisel
- Department of Clinical Psychology and Psychotherapy, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
| | - Matthias Domhardt
- Department of Clinical Psychology and Psychotherapy, Ulm University, Ulm, Germany
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Viola Spek
- Fontys University of Applied Sciences, Eindhoven, The Netherlands
| | - Stephanie Nobis
- Institute of Psychology, Leuphana University Lueneburg, Lueneburg, Germany
| | - Frank Snoek
- Department of Medical Psychology, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Pim Cuijpers
- Department of Clinical, Neuro- and Developmental Psychology, Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Jan Philipp Klein
- Department of Psychiatry and Psychotherapy, Luebeck University, Luebeck, Germany
| | - Steffen Moritz
- Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - David Daniel Ebert
- Department of Medical Psychology, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands,
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Boulay F, Simpson GS, Ichikawa Y, Kisyov S, Bucurescu D, Takamine A, Ahn DS, Asahi K, Baba H, Balabanski DL, Egami T, Fujita T, Fukuda N, Funayama C, Furukawa T, Georgiev G, Gladkov A, Hass M, Imamura K, Inabe N, Ishibashi Y, Kawaguchi T, Kawamura T, Kim W, Kobayashi Y, Kojima S, Kusoglu A, Lozeva R, Momiyama S, Mukul I, Niikura M, Nishibata H, Nishizaka T, Odahara A, Ohtomo Y, Ralet D, Sato T, Shimizu Y, Sumikama T, Suzuki H, Takeda H, Tao LC, Togano Y, Tominaga D, Ueno H, Yamazaki H, Yang XF, Daugas JM. Boulay et al. Reply. Phys Rev Lett 2021; 127:169202. [PMID: 34723612 DOI: 10.1103/physrevlett.127.169202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 08/31/2021] [Indexed: 06/13/2023]
Affiliation(s)
- F Boulay
- CEA, DAM, DIF, 91297 Arpajon cedex, France
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- GANIL, CEA/DSM-CNRS/IN2P3, BP55027, 14076 Caen cedex 5, France
| | - G S Simpson
- LPSC, CNRS/IN2P3, Université Joseph Fourier Grenoble 1, INPG, 38026 Grenoble Cedex, France
| | - Y Ichikawa
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - S Kisyov
- Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), 077125 Bucharest-Măgurele, Romania
| | - D Bucurescu
- Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), 077125 Bucharest-Măgurele, Romania
| | - A Takamine
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - D S Ahn
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - K Asahi
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - H Baba
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - D L Balabanski
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Extreme Light Infrastructure-Nuclear Physics (ELI-NP), Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), 077125 Bucharest-Măgurele, Romania
| | - T Egami
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Advanced Sciences, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan
| | - T Fujita
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Osaka University, Machikaneyama 1-1 Toyonaka, Osaka 560-0034, Japan
| | - N Fukuda
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - C Funayama
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - T Furukawa
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji, Tokyo 192-0397, Japan
| | - G Georgiev
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay Campus, France
| | - A Gladkov
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 702-701, South Korea
| | - M Hass
- Department of Particle Physics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - K Imamura
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Meiji University, 1-1-1 Higashi-Mita, Tama, Kawasaki, Kanagawa 214-8571, Japan
| | - N Inabe
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Y Ishibashi
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-5877, Japan
| | - T Kawaguchi
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Advanced Sciences, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan
| | - T Kawamura
- Department of Physics, Osaka University, Machikaneyama 1-1 Toyonaka, Osaka 560-0034, Japan
| | - W Kim
- Department of Physics, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 702-701, South Korea
| | - Y Kobayashi
- Department of Informatics and Engineering, University of Electro-Communication, 1-5-1 Chofugaoka, Chohu, Tokyo 182-8585, Japan
| | - S Kojima
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - A Kusoglu
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay Campus, France
- Department of Physics, Faculty of Science, Istanbul University, Vezneciler/Faith, 34134 Istanbul, Turkey
| | - R Lozeva
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay Campus, France
| | - S Momiyama
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - I Mukul
- Department of Particle Physics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - M Niikura
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - H Nishibata
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Osaka University, Machikaneyama 1-1 Toyonaka, Osaka 560-0034, Japan
| | - T Nishizaka
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Advanced Sciences, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan
| | - A Odahara
- Department of Physics, Osaka University, Machikaneyama 1-1 Toyonaka, Osaka 560-0034, Japan
| | - Y Ohtomo
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - D Ralet
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay Campus, France
| | - T Sato
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - Y Shimizu
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Sumikama
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Suzuki
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Takeda
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - L C Tao
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Y Togano
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - D Tominaga
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Advanced Sciences, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan
| | - H Ueno
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Yamazaki
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - X F Yang
- Instituut voor Kern-en Stralingsfysica, K.U. Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | - J M Daugas
- CEA, DAM, DIF, 91297 Arpajon cedex, France
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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Kawakami N, Imamura K, Watanabe K, Sekiya Y, Sasaki N, Sato N. Effectiveness of an Internet-Based Machine-Guided Stress Management Program Based on Cognitive Behavioral Therapy for Improving Depression Among Workers: Protocol for a Randomized Controlled Trial. JMIR Res Protoc 2021; 10:e30305. [PMID: 34460414 PMCID: PMC8515231 DOI: 10.2196/30305] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/27/2021] [Accepted: 08/09/2021] [Indexed: 01/30/2023] Open
Abstract
Background The effect of an unguided internet-based cognitive behavioral therapy (iCBT) stress management program on depression may be enhanced by applying artificial intelligence (AI) technologies to guide participants adopting the program. Objective The aim of this study is to describe a research protocol to investigate the effect of a newly developed iCBT stress management program adopting AI technologies on improving depression among healthy workers during the COVID-19 pandemic. Methods This study is a two-arm, parallel, randomized controlled trial. Participants (N=1400) will be recruited, and those who meet the inclusion criteria will be randomly allocated to the intervention or control (treatment as usual) group. A 6-week, six-module, internet-based stress management program, SMART-CBT, has been developed that includes machine-guided exercises to help participants acquire CBT skills, and it applies machine learning and deep learning technologies. The intervention group will participate in the program for 10 weeks. The primary outcome, depression, will be measured using the Beck Depression Inventory II at baseline and 3- and 6-month follow-ups. A mixed model repeated measures analysis will be used to test the intervention effect (group × time interactions) in the total sample (universal prevention) on an intention-to-treat basis. Results The study was at the stage of recruitment of participants at the time of submission. The data analysis related to the primary outcome will start in January 2022, and the results might be published in 2022 or 2023. Conclusions This is the first study to investigate the effectiveness of a fully automated machine-guided iCBT program for improving subthreshold depression among workers using a randomized controlled trial design. The study will explore the potential of a machine-guided stress management program that can be disseminated online to a large number of workers with minimal cost in the post–COVID-19 era. Trial Registration UMIN Clinical Trials Registry(UMIN-CTR) UMIN000043897; https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000050125 International Registered Report Identifier (IRRID) PRR1-10.2196/30305
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Affiliation(s)
- Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kazuhiro Watanabe
- Department of Public Health, Kitasato University School of Medicine, Sagamihara, Japan
| | - Yuki Sekiya
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Nana Sato
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Hidaka Y, Sasaki N, Imamura K, Tsuno K, Kuroda R, Kawakami N. Changes in fears and worries related to COVID-19 during the pandemic among current employees in Japan: a 5-month longitudinal study. Public Health 2021; 198:69-74. [PMID: 34365108 PMCID: PMC8463081 DOI: 10.1016/j.puhe.2021.06.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 06/21/2021] [Accepted: 06/22/2021] [Indexed: 12/01/2022]
Abstract
Objectives This study investigates and describes the time course of fears and worries about COVID-19 among current employees during this outbreak. Study design This was a longitudinal study. Methods This study was a part of the Employee Cohort Study in Japan. The study comprised 4120 individuals from February 2019. A baseline survey in March 2020, a 2-month follow-up survey in May 2020, and a 5-month follow-up survey in August 2020 were conducted. Questions surveyed respondents’ global fear and worry and six items related to COVID-19. A mixed model for repeated measures of an analysis of variance was used. Results A total of 1421 respondents completed the baseline survey. At 2- and 5-month follow-ups, 1032 and 1181 respondents completed surveys, respectively. Of those, 64 and 33 individuals who were temporarily laid off or on leave were recorded as missing values. Global fear and worry about COVID-19 significantly increased from March to August 2020. Fears of personal or family infection, limiting one's activities and national and local government policies also significantly increased with time. In contrast, fears of lack of knowledge and difficulty of obtaining hygiene products significantly decreased. Conclusion To conduct efficient risk communication during a pandemic, knowing the concerns of the populace, providing correct information and a sufficient supply of products, and setting clear guidelines are essential.
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Affiliation(s)
- Y Hidaka
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 3-7-1 Hongo, Bunkyo, Tokyo, 113-0033, Japan; Japan Society for the Promotion of Science, 5-3-1 Kojimachi, Chiyoda, Tokyo, 102-0083, Japan.
| | - N Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 3-7-1 Hongo, Bunkyo, Tokyo, 113-0033, Japan.
| | - K Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 3-7-1 Hongo, Bunkyo, Tokyo, 113-0033, Japan.
| | - K Tsuno
- School of Health Innovation, Kanagawa University of Human Services, Research Gate Building TONOMACHI2, 3-25-10, Tonomachi, Kawasaki-ku, Kawasaki-shi, 210-0821, Kanagawa, Japan.
| | - R Kuroda
- Division for Environment, Health and Safety, The University of Tokyo, 3-7-1 Hongo, Bunkyo, Tokyo, 113-8654, Japan.
| | - N Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 3-7-1 Hongo, Bunkyo, Tokyo, 113-0033, Japan.
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Imamura K, Tran TTT, Nguyen HT, Sasaki N, Kuribayashi K, Sakuraya A, Bui TM, Nguyen AQ, Nguyen QT, Nguyen NT, Nguyen KT, Nguyen GTH, Tran XTN, Truong TQ, Zhang MW, Minas H, Sekiya Y, Watanabe K, Tsutsumi A, Kawakami N. Effect of smartphone-based stress management programs on depression and anxiety of hospital nurses in Vietnam: a three-arm randomized controlled trial. Sci Rep 2021; 11:11353. [PMID: 34059737 PMCID: PMC8166974 DOI: 10.1038/s41598-021-90320-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 05/11/2021] [Indexed: 12/16/2022] Open
Abstract
There are growing concerns on stress among nurses in low- and middle-income countries (LMICs) in South-East Asia. It is important to improve mental health among nurses in these countries. The objective of this study was to examine the efficacy of two types of newly developed smartphone-based stress management programs in improving depressive and anxiety symptoms among hospital nurses in Vietnam. This study was a three-arm (including two intervention groups and one control group) randomized trial. Participants were recruited from nurses in a large general hospital in Hanoi, Vietnam. Two types (free-choice and fixed sequential order) of smartphone-based stress management programs were developed. Participants were randomly allocated to Program A (a free-choice, multimodule stress management), Program B (a fixed-order, internet cognitive behavioral therapy, iCBT), or a control group (treatment as usual). The depressive and anxiety symptoms were measured by using the Depression Anxiety and Stress Scales at baseline, 3-, and 7-month follow-up surveys. 951 participants were randomly allocated to each of the three groups. Program B showed a statistically significant effect on improving depressive symptoms at 3-month (p = 0.048), but not at 7-month (p = 0.92); Cohen's d was - 0.18 (95% CI - 0.34 to - 0.02) and 0.03 (95% CI - 1.00 to 1.05), respectively. Program A failed to show a significant intervention effect on any of the outcomes at 3- or 7-month follow-up (p > 0.05). Despite the small effect size, the present fixed-order iCBT program seems effective in improving depression of hospital nurses in Vietnam. A public health impact of the intervention can be scalable, when considering its accessibility and minimal cost.Trial registration number: The study protocol is registered at the UMIN Clinical Trials Registry (UMINCTR; ID = UMIN000033139). Registered date of the protocol is 1st Jul. 2018. https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000037796.
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Affiliation(s)
- Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Thuy Thi Thu Tran
- Department of Occupational Health and Safety, Faculty of Environmental and Occupational Health, Hanoi University of Public Health, Hanoi, Vietnam
| | - Huong Thanh Nguyen
- Faculty of Social and Behavioral Sciences, Hanoi University of Public Health, Hanoi, Vietnam
| | - Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Kazuto Kuribayashi
- Department of Mental Health and Psychiatric Nursing, Graduate School of Health Care Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Asuka Sakuraya
- Division of Public Health, Department of Hygiene and Public Health, School of Medicine, Tokyo Women's Medical University, Tokyo, Japan
| | - Thu Minh Bui
- Nursing Office, Bach Mai Hospital, Hanoi, Vietnam
| | | | - Quynh Thuy Nguyen
- Department of Occupational Health and Safety, Faculty of Environmental and Occupational Health, Hanoi University of Public Health, Hanoi, Vietnam
| | - Nga Thi Nguyen
- Faculty of Social and Behavioral Sciences, Hanoi University of Public Health, Hanoi, Vietnam
| | - Kien Trung Nguyen
- Faculty of Social and Behavioral Sciences, Hanoi University of Public Health, Hanoi, Vietnam
| | | | | | - Tien Quang Truong
- Faculty of Social and Behavioral Sciences, Hanoi University of Public Health, Hanoi, Vietnam
| | - Melvyn Weibin Zhang
- National Addiction Management Service, Institute of Mental Health, Singapore, Singapore
| | - Harry Minas
- Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Australia
| | - Yuki Sekiya
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Kazuhiro Watanabe
- Department of Public Health, Kitasato University School of Medicine, Sagamihara, Japan
| | - Akizumi Tsutsumi
- Department of Public Health, Kitasato University School of Medicine, Sagamihara, Japan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
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Sasaki N, Asaoka H, Kuroda R, Tsuno K, Imamura K, Kawakami N. Sustained poor mental health among healthcare workers in COVID-19 pandemic: A longitudinal analysis of the four-wave panel survey over 8 months in Japan. J Occup Health 2021; 63:e12227. [PMID: 34021683 PMCID: PMC8140377 DOI: 10.1002/1348-9585.12227] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/23/2021] [Accepted: 04/05/2021] [Indexed: 11/07/2022] Open
Abstract
OBJECTIVES This study aimed to compare the longitudinal change of the psychological distress of healthcare workers (HCWs) with non-HCWs during the repeated outbreaks of the COVID-19 in Japan. METHODS The data were retrieved from the Employee Cohort Study in the Covid-19 pandemic in Japan study. An online survey was conducted on March 2020 (T1), on May 2020 (T2), on August 2020 (T3), and on November 2020 (T4). Psychological distress was measured by the Brief Job Stress Questionnaire. A mixed-model repeated-measures ANOVA was conducted as an indicator of the group differences. RESULTS A total sample of analysis was n = 996 (HCWs, n = 111; non-HCWs, n = 885). HCWs consisted of physicians/nurses/midwives and other HCWs (eg, pharmacists, clinical laboratory technicians) in the clinical settings (n = 19; 17% and n = 61; 55%, respectively), and HCWs not working in the clinical settings (n = 31; 28%). Being HCWs were associated with a significant increase in psychological distress from T1 to T2, T3 and T4 (P = .001, P = .002, P < .001; respectively). CONCLUSIONS The mental health of HCWs deteriorated through the COVID-19 outbreaks compared with non-HCWs. HCWs are continuously the important targets to provide mental health support.
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Affiliation(s)
- Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hiroki Asaoka
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Reiko Kuroda
- Division for Environment, Health, and Safety, The University of Tokyo, Tokyo, Japan
| | - Kanami Tsuno
- School of Health Innovation, Kanagawa University of Human Services, Kanagawa, Japan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Tran TTT, Watanabe K, Imamura K, Nguyen HT, Sasaki N, Kuribayashi K, Sakuraya A, Nguyen NT, Bui TM, Nguyen QT, Truong TQ, Nguyen GTH, Minas H, Tsustumi A, Shimazu A, Kawakami N. Reliability and validity of the Vietnamese version of the 9-item Utrecht Work Engagement Scale. J Occup Health 2021; 62:e12157. [PMID: 32827229 PMCID: PMC7443047 DOI: 10.1002/1348-9585.12157] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 07/02/2020] [Accepted: 07/13/2020] [Indexed: 01/09/2023] Open
Abstract
Objectives The present study investigated the reliability and validity of a newly developed Vietnamese version of the 9‐item Utrecht Work Engagement Scale (UWES‐9‐V) in a sample of hospital nurses in Hanoi, Vietnam. Methods The UWES‐9 was translated into Vietnamese following a standard procedure. A survey was conducted of 949 registered nurses in a large tertiary general hospital in Hanoi, Vietnam, in 2018, using a self‐administered questionnaire including the Vietnamese UWES‐9, other scales measuring health status, work performance, job demand, job control, and workplace social support, and questions pertaining to demographic variables. Cronbach’s alpha and interclass correlation coefficients (ICC) were calculated to assess reliability. Explanatory and confirmatory factor analyses were conducted to assess factorial validity. Convergent validity was tested based on associations between the UWES‐9‐V and subscales and other scales. Results The Cronbach’s alpha coefficients of the UWES‐9‐V and the Vigor, Absorption, and Dedication subscales were 0.93, 0.86, 0.77, and 0.90, respectively. ICC of the UWES‐9‐V in a subsample after 3 months was 0.48. Confirmatory factor analyses indicated an acceptable fit of both one‐factor and three‐factor structures, with the three‐factor model having the better fit. The UWES‐9‐V and its subscales correlated with depression, anxiety and stress, health‐related quality of life and health condition, job performance, and psychosocial work environment. Conclusions The study findings suggest that the UWES‐9‐V is a reliable and valid instrument to measure work engagement among hospital nurses in Vietnam, a low‐ and middle‐income country. Future studies should confirm the validity and reliability of the UWES‐9‐V among various occupations.
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Affiliation(s)
- Thuy Thi Thu Tran
- Department of Occupational Health and Safety, Faculty of Environmental and Occupational Health, Hanoi University of Public Health, Hanoi, Vietnam
| | - Kazuhiro Watanabe
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Huong Thanh Nguyen
- Faculty of Social Sciences - Behavior and Health Education, Hanoi University of Public Health, Hanoi, Vietnam
| | - Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kazuto Kuribayashi
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Asuka Sakuraya
- Department of Public Health, Tokyo Women's Medical University, Tokyo, Japan
| | - Nga Thi Nguyen
- Faculty of Social Sciences - Behavior and Health Education, Hanoi University of Public Health, Hanoi, Vietnam
| | - Thu Minh Bui
- Nursing Office, Bach Mai Hospital, Hanoi, Vietnam
| | - Quynh Thuy Nguyen
- Department of Occupational Health and Safety, Faculty of Environmental and Occupational Health, Hanoi University of Public Health, Hanoi, Vietnam
| | - Tien Quang Truong
- Faculty of Social Sciences - Behavior and Health Education, Hanoi University of Public Health, Hanoi, Vietnam
| | | | - Harry Minas
- Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Vic., Australia
| | - Akizumi Tsustumi
- Department of Public Health, Kitasato University School of Medicine, Sagamihara, Japan
| | - Akihito Shimazu
- Faculty of Policy Management, Keio University, Fujisawa, Japan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Sasaki N, Yasuma N, Obikane E, Narita Z, Sekiya J, Inagawa T, Nakajima A, Yamada Y, Yamazaki R, Matsunaga A, Saito T, Imamura K, Watanabe K, Kawakami N, Nishi D. Psycho-educational interventions focused on maternal or infant sleep for pregnant women to prevent the onset of antenatal and postnatal depression: A systematic review. Neuropsychopharmacol Rep 2021; 41:2-13. [PMID: 33340291 PMCID: PMC8182965 DOI: 10.1002/npr2.12155] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 11/22/2020] [Accepted: 11/29/2020] [Indexed: 12/18/2022] Open
Abstract
AIMS This systematic review aimed to evaluate randomized controlled trials (RCTs) to examine the effect of maternal and infant sleep intervention during women's pregnancy for the purpose of preventing perinatal depression. METHOD A systematic search (from inception to January 28, 2019) for RCTs using five electronic databases-the Cochrane Controlled Register of Trials (CENTRAL), Embase, PubMed, PsycINFO, and Ichushi Web (Japan Medical Abstracts Society)-was conducted. Twelve investigators independently conducted initial screenings based on title and abstract, and then, two researchers performed full-text reviews one by one. A meta-analysis would be conducted if at least three studies were found. However, only two articles that met inclusion criteria, and narrative data synthesis was conducted for these two articles. The study protocol has been registered at PROSPERO (CRD42019119999). RESULT A total of 13 654 studies were initially searched. After removing duplicates, 10 547 studies were screened, and finally, two studies met the inclusion criteria. In both studies, the intervention was a one-time face-to-face session during pregnancy to deliver the behavioral knowledge and skills for optimizing sleep hygiene for both infant and mother. Effectiveness of the intervention in improving maternal mood was not significant in one study. In the other, there was a significant difference in maternal mood between the intervention and control group. No mood comparison was made between baseline and postintervention. CONCLUSION This study found limited evidence to support the effectiveness of sleep intervention for all pregnant women, which means "universal intervention," to protect maternal mental health. Further well-designed RCTs are needed to confirm these findings.
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Affiliation(s)
- Natsu Sasaki
- Department of Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Naonori Yasuma
- Department of Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Erika Obikane
- Department of Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Zui Narita
- Department of Psychiatry and Behavioral SciencesStanford UniversityPalo AltoCAUSA
| | | | - Takuma Inagawa
- Department of Psychiatry, National Center HospitalNational Center of Neurology and PsychiatryTokyoJapan
| | - Aiichiro Nakajima
- Department of Psychiatry, National Center HospitalNational Center of Neurology and PsychiatryTokyoJapan
| | - Yuji Yamada
- Department of Psychiatry, National Center HospitalNational Center of Neurology and PsychiatryTokyoJapan
| | - Ryuichi Yamazaki
- Department of PsychiatryJikei University school of medicineTokyoJapan
| | - Asami Matsunaga
- Department of Community Mental Health and LawNational Institute of Mental HealthNational Center of Neurology and PsychiatryTokyoJapan
| | - Tomomi Saito
- Department of Obstetrics and GynecologySchool of MedicineJuntendo UniversityTokyoJapan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
- Faculty of Behavioural and Movement SciencesClinical, Neuro‐ & Developmental PsychologyVrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Kazuhiro Watanabe
- Department of Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Daisuke Nishi
- Department of Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
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Sasaki N, Tsuno K, Hidaka Y, Ando E, Asai Y, Sakuraya A, Hino A, Inoue R, Imamura K, Watanabe K, Tsutsumi A, Kawakami N. [Expected research in the workplace among Japanese female workers: A cross-sectional online survey based on the framework of patient and public involvement]. Sangyo Eiseigaku Zasshi 2021; 63:275-290. [PMID: 33642458 DOI: 10.1539/sangyoeisei.2020-002-b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVES This study aimed to investigate the work-related health and social problems among Japanese female workers and the expected research in the workplace. METHOD A cross-sectional study using an Internet survey was conducted on female workers in Japan. Using an original questionnaire, we obtained data on "a system that can be used by female workers," "female workers' problems (physical symptoms, mental symptoms, menstrual problems, pregnancy/childbirth problems, work-life balance, etc.)," and "expected research in the workplace." The last two were compared using the chi-square test and considering demographic characteristics (age, marital status, having children, having preschool children, employment status, occupation). We conducted the chi-square test to examine the relationship between the presence of symptoms and four expected studies. The survey was carried out in July 2019 by using a patient and public involvement (PPI) framework in medical research. RESULTS We obtained 416 responses that highlighted that those who have work-related problems also have physical symptoms (89%), menstrual problems (65%), psychiatric symptoms (49%), and work-life balance problems (39%), followed by career as well as pregnancy and childbirth concerns (38%). Regarding the system, the respondents' usage rate was an infertility treatment communication card (0%), flextime and telework (1 to 3%), menstrual leave (4%), and short-time work system (8%). Expected workplace studies included "Research to ease stiff shoulders and back pain" (45%), "Research to improve women's mental health" (41%), "Research on menstruation and work performance" (35%), and "Research to improve work-life balance" (34%). Expectations for research on "mental health" and "menstruation" were high among subjects in their 20s and 30s, with no spouse or children, and working full-time. Among those who lived with preschoolers, expectations for research on "mental support after childbirth," "physical support after childbirth," and "prevention of postpartum depression" were significantly higher, but research related to work-life balance was not remarkably different. There was a significant association between having menstrual problems, work-life balance challenges, and study expectations. However, the percentage of those experiencing certain symptoms who expected workplace studies was about 48%. CONCLUSIONS Menstruation-related symptoms are frequently observed to make work difficult and it is expected that health issues, such as mental and physical conditions related to gynecology, will be the subject of future research regarding female workers. However, discrepancies between having difficulties and whether or not they wish to accept research in the workplace should be carefully considered in each context.
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Affiliation(s)
- Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kanami Tsuno
- School of Health Innovation, Kanagawa University of Human Services, Kawasaki, Japan
| | - Yui Hidaka
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Emiko Ando
- Center for Public Health Sciences, National Cancer Center Japan, Tokyo, Japan
| | - Yumi Asai
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Asuka Sakuraya
- Department of Public Health, Tokyo Women's Medical University, Tokyo, Japan
| | - Ayako Hino
- Department of Mental Health, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | - Reiko Inoue
- Department of Public Health, Kitasato University School of Medicine, Sagamihara, Japan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Faculty of Behavioural and Movement Sciences, Clinical, Neuro- & Developmental Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Kazuhiro Watanabe
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Akizumi Tsutsumi
- Department of Public Health, Kitasato University School of Medicine, Sagamihara, Japan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Sasaki N, Imamura K, Nishi D, Watanabe K, Sekiya Y, Tsuno K, Kobayashi Y, Kawakami N. Internet-based acceptance and commitment therapy programme 'Happiness Mom' for well-being: a protocol for a randomised controlled trial. BMJ Open 2021; 11:e042167. [PMID: 33637541 PMCID: PMC7919564 DOI: 10.1136/bmjopen-2020-042167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION This randomised controlled trial (RCT) aims to examine the effects of an internet-delivered acceptance and commitment therapy (iACT) programme ('Happiness Mom') on the psychological well-being of working mothers. METHODS AND ANALYSIS The target population of the RCT will be employed mothers with at least one preschool child. Participants who fulfil the study's eligibility criteria will be randomly assigned either to an iACT intervention group (n=200) or to a wait-list control group (n=200). Participants in the intervention groups will be asked to complete the programme within 12 weeks of the baseline survey. The intervention programme contains eight modules based on ACT. Primary outcomes are six components of psychological well-being, based on Ryff's theory. Secondary outcomes are intention to leave their job, work engagement, work performance, sick leave days, psychological distress, euthymia, positive emotions, job and life satisfaction, social support and parental burn-out. ETHICS AND DISSEMINATION Ethical approval for this study has been obtained from the Research Ethics Review Board of Graduate School of Medicine, the University of Tokyo (No. 2019134NI). If the intervention programmes are found to be significantly beneficial, the programmes can be made available for all working mothers with preschool children in Japan. DISCUSSION This study will contribute to the development of an internet-based self-care programme that is effective, feasible, low cost and accessible to improve the well-being of working mothers. TRIAL REGISTRATION NUMBER UMIN000039918.
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Affiliation(s)
- Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Japan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Japan
| | - Daisuke Nishi
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Japan
| | - Kazuhiro Watanabe
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Japan
| | - Yuki Sekiya
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Japan
| | - Kanami Tsuno
- School of Health Innovation, Kanagawa University of Human Services, Kanagawa, Japan
| | - Yuka Kobayashi
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Japan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Japan
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Sasaki N, Imamura K, Tran TTT, Nguyen HT, Kuribayashi K, Sakuraya A, Bui TM, Nguyen QT, Nguyen NT, Nguyen GTH, Zhang MW, Minas H, Sekiya Y, Watanabe K, Tsutsumi A, Shimazu A, Kawakami N. Effects of Smartphone-Based Stress Management on Improving Work Engagement Among Nurses in Vietnam: Secondary Analysis of a Three-Arm Randomized Controlled Trial. J Med Internet Res 2021; 23:e20445. [PMID: 33620328 PMCID: PMC7943341 DOI: 10.2196/20445] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 09/03/2020] [Accepted: 10/17/2020] [Indexed: 01/16/2023] Open
Abstract
Background Work engagement is important for employee well-being and work performance. However, no intervention study has investigated the effect of an eMental Health intervention on work engagement among workers in low- and middle-income countries (LMICs). Objective The aim of the study was to examine the effects of a newly developed smartphone-based stress management program (ABC Stress Management) on improving work engagement among hospital nurses in Vietnam, an LMIC. Methods Full-time registered nurses (n=949) were randomly assigned to one of 2 intervention groups or a control group. The intervention groups were a 6-week, 6-lesson program offering basic cognitive behavioral therapy (CBT-based stress management skills), provided in either free-choice (program A) or fixed order (program B). Work engagement was assessed at baseline and 3-month and 7-month follow-ups in each of the 3 groups. Results The scores of work engagement in both intervention groups improved from baseline to 3-month follow-up, and then decreased at the 7-month follow-up, while the score steadily increased from baseline to 7-month follow-up in the control group. Program B showed a significant intervention effect on improving work engagement at the 3-month follow-up (P=.049) with a small effect size (Cohen d= 0.16; 95% CI 0.001 to 0.43]). Program A showed nonsignificant trend (d=0.13; 95% CI –0.014 to 0.41; P=.07) toward improved engagement at 3 months. Neither program achieved effectiveness at the 7-month follow-up. Conclusions The study demonstrated that a fixed order (program B) delivery of a smartphone-based stress management program was effective in improving work engagement in nurses in Vietnam. However, the effect was small and only temporary. Further improvement of this program is required to achieve a greater effect size and more sustained, longer lasting impact on work engagement. Trial Registration University Hospital Medical Information Network Clinical Trials Registry UMIN000033139; tinyurl.com/55gxo253 International Registered Report Identifier (IRRID) RR2-10.1136/bmjopen-2018-025138
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Affiliation(s)
- Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Thuy Thi Thu Tran
- Department of Occupational Health and Safety, Faculty of Environmental and Occupational Health, Hanoi University of Public Health, Hanoi, Vietnam
| | - Huong Thanh Nguyen
- Faculty of Social Sciences-Behavior and Health Education, Hanoi University of Public Health, Hanoi, Vietnam
| | - Kazuto Kuribayashi
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Asuka Sakuraya
- Department of Public Health, Tokyo Women's Medical University, Tokyo, Japan
| | - Thu Minh Bui
- Nursing Office, Bach Mai Hospital, Hanoi, Vietnam
| | - Quynh Thuy Nguyen
- Department of Occupational Health and Safety, Faculty of Environmental and Occupational Health, Hanoi University of Public Health, Hanoi, Vietnam
| | - Nga Thi Nguyen
- Faculty of Social Sciences-Behavior and Health Education, Hanoi University of Public Health, Hanoi, Vietnam
| | | | - Melvyn Weibin Zhang
- National Addiction Management Service, Institute of Mental Health, Singapore, Singapore
| | - Harry Minas
- Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Australia
| | - Yuki Sekiya
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kazuhiro Watanabe
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Akizumi Tsutsumi
- Department of Public Health, Kitasato University School of Medicine, Sagamihara, Japan
| | - Akihito Shimazu
- Faculty of Policy Management, Keio University, Kanagawa, Japan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Yasuma N, Imamura K, Watanabe K, Nishi D, Kawakami N, Takano A. Association between energy drink consumption and substance use in adolescence: A systematic review of prospective cohort studies. Drug Alcohol Depend 2021; 219:108470. [PMID: 33370623 DOI: 10.1016/j.drugalcdep.2020.108470] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 11/10/2020] [Accepted: 11/28/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND It is unclear whether energy drink (ED) consumption is associated with substance use (SU) in adolescence. The purpose of this study is to clarify the association. METHODS A systematic review was conducted using a wide range of electronic bibliographic databases to search for published prospective cohort studies on the topic from inception to 14th August 2019. The risk of bias was addressed by using the Risk Of Bias In Non-randomised Studies - of Interventions; ROBINS-I. Studies targeting adolescents were collected. Additionally, we collected studies that examined an association between the extent of energy drink consumption as exposure variables and any substance use as outcome variables. RESULTS Five studies met the eligibility criteria. ED consumption was associated with adolescent use of alcohol, tobacco, cannabis, prescription stimulants, and analgesics. However, the overall risk of bias in the included studies was severe. CONCLUSION ED consumption may be associated with SU in adolescence, particularly alcohol use. The results, however, were still inconclusive due to the relatively low methodological quality in the included studies. Evidence from more well-designed trials is needed in future research.
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Affiliation(s)
- Naonori Yasuma
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan; Department of Community Mental Health and Law, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, 187-8551, Japan.
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan.
| | - Kazuhiro Watanabe
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan.
| | - Daisuke Nishi
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan.
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan.
| | - Ayumi Takano
- Department of Mental Health and Psychiatric Nursing, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, 113-8510, Japan.
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Iida M, Watanabe K, Imamura K, Sakuraya A, Asaoka H, Sato N, Nozawa K, Kawakami N. Development and validation of the Japanese version of the team job crafting scale for nurses. Res Nurs Health 2021; 44:329-343. [PMID: 33512763 DOI: 10.1002/nur.22110] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 11/25/2020] [Accepted: 12/31/2020] [Indexed: 11/12/2022]
Abstract
Team job crafting, which refers to designing the task, relational, and cognitive aspects of a job, is thought to be beneficial for nurses working in the ward. There are no scales to assess team job crafting among nurses. This study aimed to develop and examine the reliability and validity of a scale to measure team job crafting. Based on literature reviews and interviews, potential items were created. A total of 293 nurses working on 19 wards in two hospitals in Japan were asked to complete a questionnaire twice. A series of exploratory factor analyses (EFAs) were conducted to select the final items. For convergent validity, multilevel correlations were calculated. Cronbach's α and intra-class correlation coefficients (ICCs) were calculated for reliability. A total of 190 participants responded to the baseline survey and 152 responded to the retest. The EFAs yielded a three-factor structure comprising 13 items. The three factors are task crafting considering the team's growth, cognitive crafting for members' respect and reflection of meaningfulness of work, and relational crafting for smooth information sharing. Cronbach's α ranged from .810 to .831, and test-retest ICCs ranged from 0.571 to 0.710. At the individual level, team job crafting had small-to-moderate correlations with individual levels of job crafting, job control, supervisor support, co-worker support, job satisfaction, workplace social capital, and work engagement. The ICC of the team job crafting scores of 0.125 indicated meaningful variation across wards. At the ward-level, nonsignificant but strong correlations were found with workplace social capital, job satisfaction, and psychological distress. This scale showed acceptable levels of reliability and validity. It would be useful in monitoring and improving team job crafting to increase team members' well-being and performance.
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Affiliation(s)
- Mako Iida
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kazuhiro Watanabe
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kotaro Imamura
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Asuka Sakuraya
- Department of Public Health, Tokyo Women's Medical University, Tokyo, Japan
| | - Hiroki Asaoka
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Nana Sato
- Department of Mental Health, School of Public Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kyosuke Nozawa
- Department of Psychiatric Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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