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Ryo Okubo

COVID-19 Vaccine Hesitancy and Its Associated Factors in Japan
2021 · Ryo Okubo, Takashi Yoshioka, et al. · Vaccines · 155
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Association of Use of Omega-3 Polyunsaturated Fatty Acids With Changes in Severity of Anxiety Symptoms
2018 · Kuan-Pin Su, Ping-Tao Tseng, et al. · JAMA Network Open · 153
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Effect of bifidobacterium breve A-1 on anxiety and depressive symptoms in schizophrenia: A proof-of-concept study
2018 · Ryo Okubo, Minori Koga, et al. · Journal of Affective Disorders · 149
Increase in Social Isolation during the COVID-19 Pandemic and Its Association with Mental Health: Findings from the JACSIS 2020 Study
2021 · Hiroshi Murayama, Ryo Okubo, et al. · International Journal of Environmental Research and Public Health · 111
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Urbanization level and neighborhood deprivation, not COVID-19 case numbers by residence area, are associated with severe psychological distress and new-onset suicidal ideation during the COVID-19 pandemic
2021 · Ryo Okubo, Takashi Yoshioka, et al. · Journal of Affective Disorders · 67
Factors associated with serious psychological distress during the COVID-19 pandemic in Japan: a nationwide cross-sectional internet-based study
2021 · Takashi Yoshioka, Ryo Okubo, et al. · BMJ Open · 54
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Impact of chemotherapy on the association between fear of cancer recurrence and the gut microbiota in breast cancer survivors
2019 · Ryo Okubo, Takayuki Kinoshita, et al. · Brain Behavior and Immunity · 50
Use of heated tobacco products, moderate alcohol drinking, and anti-SARS-CoV-2 IgG antibody titers after BNT162b2 vaccination among Japanese healthcare workers
2022 · Shohei Yamamoto, Akihito Tanaka, et al. · Preventive Medicine · 32
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COVID ‐19‐related discrimination, PTSD symptoms, and psychological distress in healthcare workers
2022 · Zui Narita, Ryo Okubo, et al. · International Journal of Mental Health Nursing · 31
Lipid and Energy Metabolism of the Gut Microbiota Is Associated with the Response to Probiotic Bifidobacterium breve Strain for Anxiety and Depressive Symptoms in Schizophrenia
2021 · Ryodai Yamamura, Ryo Okubo, et al. · Journal of Personalized Medicine · 31
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Diet quality and depression risk in a Japanese population: the Japan Public Health Center (JPHC)-based Prospective Study
2019 · Ryo Okubo, Yutaka J. Matsuoka, et al. · Scientific Reports · 26
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Data Resource Profile: The Japan COVID-19 and Society Internet Survey (JACSIS)
2026 · Hidehiro Someko, Keisuke Anan, et al. · International Journal of Epidemiology · 25
Impact of loneliness on suicidal ideation during the COVID-19 pandemic: findings from a cross-sectional online survey in Japan
2023 · Hirokazu Tachikawa, Midori Matsushima, et al. · BMJ Open · 23
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Proposed Cut-Off Score for the Japanese Version of the Fear of Coronavirus Disease 2019 Scale (FCV-19S): Evidence from a Large-Scale National Survey in Japan
2022 · Haruhiko Midorikawa, Hirokazu Tachikawa, et al. · International Journal of Environmental Research and Public Health · 22
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Association of COVID-19-related discrimination with subsequent depression and suicidal ideation in healthcare workers
2023 · Zui Narita, Ryo Okubo, et al. · Journal of Psychiatric Research · 21
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Expectations of and recommendations for a cancer survivorship guideline in Japan: a literature review of guidelines for cancer survivorship
2019 · Ryo Okubo, Saho Wada, et al. · Japanese Journal of Clinical Oncology · 21
Sex Differences in Social Cognition and Association of Social Cognition and Neurocognition in Early Course Schizophrenia
2022 · Ryotaro Kubota, Ryo Okubo, et al. · Frontiers in Psychology · 20
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Temporary employment and suicidal ideation in COVID-19 pandemic in Japan: A cross-sectional nationwide survey
2022 · Natsu Sasaki, Takahiro Tabuchi, et al. · Journal of Occupational Health · 19
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Absent activation in medial prefrontal cortex and temporoparietal junction but not superior temporal sulcus during the perception of biological motion in schizophrenia: a functional MRI study
2014 · Naoki Hashimoto, Ryo Okubo, et al. · Neuropsychiatric Disease and Treatment · 19
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Mechanisms underlying the effects of n-3 polyunsaturated fatty acids on fear memory processing and their hypothetical effects on fear of cancer recurrence in cancer survivors
2018 · R Okubo, C Chen, et al. · Prostaglandins Leukotrienes and Essential Fatty Acids · 18
Simple Pulmonary Eosinophilia Associated With Clozapine Treatment
2014 · Naoki Hashimoto, Tamaki Maeda, et al. · Journal of Clinical Psychopharmacology · 18
Evaluation of Social Cognition Measures for Japanese Patients with Schizophrenia Using an Expert Panel and Modified Delphi Method
2021 · Hiroki Okano, Ryotaro Kubota, et al. · Journal of Personalized Medicine · 16
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Burnout and its associated factors among healthcare workers and the general working population in Japan during the COVID-19 pandemic: a nationwide cross-sectional internet-based study
2022 · Takahiro Matsuo, Takashi Yoshioka, et al. · BMJ Open · 15
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Pilot Validation Study of the Japanese Translation of the Brief Negative Symptoms Scale (BNSS)
2019 · Naoki Hashimoto, Atsuhito Toyomaki, et al. · Neuropsychiatric Disease and Treatment · 14
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Association of night-shift work with gambling and problem gambling among workers in Japan: A nationwide cross-sectional study
2024 · Takashi Yoshioka, Ryuhei So, et al. · Addictive Behaviors · 12
Works count: 89
Citation count: 1,401
H-index: 19
I10-index: 39
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