Publications by authors named "Kentaro Usuda"

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Psychological distress after COVID-19 recovery and subsequent prolonged post-acute COVID-19 syndrome: A longitudinal study with one-year follow-up in Japan.
Megumi Hazumi, Mayumi Kataoka, Zui Narita, Kentaro Usuda, Emi Okazaki

J Psychosom Res· September 2025

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Analysis of Local Authorities Providing Mental Health Consultation: Towards Establishing a Community-Based Integrated Mental Health Care System.
Momoka Igarashi, Naoaki Kuroda, Takashi Okada, Yoko Moriyama, Makiko Abe, Kentaro Usuda

Int J Health Plann Manage· September 2025

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Effect of video-based trauma-informed care training for nursing staff on seclusion and restraint of psychiatric inpatients: A non-randomized controlled study.
Michi Miyake, Megumi Hazumi, Kentaro Usuda, Takahiro Kawashima, Maiko Fukasawa

Int J Nurs Stud Adv· June 2025

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Psychometric property of the Japanese version of self-efficacy for managing chronic disease scale in individuals with chronic diseases.
Megumi Hazumi, Mayumi Kataoka, Ayako Nakashita, Kentaro Usuda, Michi Miyake

Heliyon· November 2024

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Online peer support for mental health in individuals with post-acute sequelae of COVID-19: A pre-post pilot study with mixed methods.
Megumi Hazumi, Michi Miyake, Mayumi Kataoka, Kentaro Usuda, Daisuke Nishi

PCN Rep· September 2024

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Effects of the Modified version of the Mental Health Supporter Training Program on mental-health-related public stigma among Japanese people: A pretest/posttest study.
Mako Iida, Utako Sawada, Kentaro Usuda, Megumi Hazumi, Ikue Umemoto

PCN Rep· June 2024

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Effects of the Mental Health Supporter Training Program on mental health-related public stigma among Japanese people: A pretest/posttest study.
Mako Iida, Utako Sawada, Kentaro Usuda, Megumi Hazumi, Emi Okazaki

PCN Rep· March 2024

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Mental Health Reform Processes and Service Delivery Shift From the Hospital to the Community in Belgium and Hong Kong.
Mina Honyashiki, Jeroen Decoster, William Tak Lam Lo, Taichi Shimazu, Kentaro Usuda

Health Serv Insights· November 2023

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Difference in the risk of discrimination on psychological distress experienced by early wave infected and late wave infected COVID-19 survivors in Japan.
Megumi Hazumi, Mayumi Kataoka, Kentaro Usuda, Zui Narita, Emi Okazaki

Sci Rep· August 2023

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Studies of Health Insurance Claims Data in Japan: A Scoping Review.
Maiko Suto, Takehiro Sugiyama, Kenjiro Imai, Takashi Furuno, Mariko Hosozawa, Kentaro Usuda

JMA J· July 2023

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Association of preexisting psychiatric disorders with post-COVID-19 prevalence: a cross-sectional study.
Mayumi Kataoka, Megumi Hazumi, Kentaro Usuda, Emi Okazaki, Daisuke Nishi

Sci Rep· January 2023

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Relationship between attitudes toward COVID-19 infection, depression and anxiety: a cross-sectional survey in Japan.
Megumi Hazumi, Emi Okazaki, Kentaro Usuda, Mayumi Kataoka, Daisuke Nishi

BMC Psychiatry· December 2022

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Differences in the Course of Depression and Anxiety after COVID-19 Infection between Recovered Patients with and without a Psychiatric History: A Cross-Sectional Study.
Megumi Hazumi, Kentaro Usuda, Emi Okazaki, Mayumi Kataoka, Daisuke Nishi

Int J Environ Res Public Health· September 2022

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The impact of COVID-19 on inpatient wards at psychiatric hospitals in Japan.
Kentaro Usuda, Emi Okazaki, Yukari Tsukie, Yoshio Yamanouchi

Asian J Psychiatr· August 2021

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Number of long-term inpatients in Japanese psychiatric care beds: trend analysis from the patient survey and the 630 survey.
Tatsushi Okayama, Kentaro Usuda, Emi Okazaki, Yoshio Yamanouchi

BMC Psychiatry· November 2020

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Association of prenatal psychological distress and postpartum depression with varying physical activity intensity: Japan Environment and Children's Study (JECS).
Ryoko Susukida, Kentaro Usuda, Kei Hamazaki, Akiko Tsuchida, Kenta Matsumura

Sci Rep· April 2020

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Plasma estradiol levels and antidepressant effects of omega-3 fatty acids in pregnant women.
Daisuke Nishi, Kuan-Pin Su, Kentaro Usuda, Jane Pei-Chen Chang, Kei Hamazaki

Brain Behav Immun· March 2020

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The Efficacy of Omega-3 Fatty Acids for Depressive Symptoms among Pregnant Women in Japan and Taiwan: A Randomized, Double-Blind, Placebo-Controlled Trial (SYNCHRO; NCT01948596).
Daisuke Nishi, Kuan-Pin Su, Kentaro Usuda, Jane Pei-Chen Chang, Yi-Ju Chiang

Psychother Psychosom· June 2019

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Differences between Japan and Taiwan in the treatment of pregnant women with depressive symptoms by omega-3 fatty acids: An open-label pilot study.
Daisuke Nishi, Kuan-Pin Su, Kentaro Usuda, Jane Pei-Chen Chang, Yi-Ju Jill Chiang

Nutr Neurosci· January 2019

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Psychological distress among people in Fukushima prefecture before and after the Great East Japan Earthquake using a nation-wide survey.
Daisuke Nishi, Ryoko Susukida, Kentaro Usuda, Yoshio Yamanouchi

Psychiatry Clin Neurosci· December 2018

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Trends in the prevalence of psychological distress and the use of mental health services from 2007 to 2016 in Japan.
Daisuke Nishi, Ryoko Susukida, Kentaro Usuda, Ramin Mojtabai, Yoshio Yamanouchi

J Affect Disord· October 2018

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Optimal cut-off score of the Edinburgh Postnatal Depression Scale for major depressive episode during pregnancy in Japan.
Kentaro Usuda, Daisuke Nishi, Emi Okazaki, Miyuki Makino, Yo Sano

Psychiatry Clin Neurosci· December 2017

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Psychological growth after childbirth: an exploratory prospective study.
Daisuke Nishi, Kentaro Usuda

J Psychosom Obstet Gynaecol· June 2017

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The synchronized trial on expectant mothers with depressive symptoms by omega-3 PUFAs (SYNCHRO): Study protocol for a randomized controlled trial.
Daisuke Nishi, Kuan-Pin Su, Kentaro Usuda, Yi-Ju Jill Chiang, Tai-Wei Guu

BMC Psychiatry· September 2016

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