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PositionAssistant ProfessorMail Address
Address3-1-1, Asahi, Matsumoto City 390-8621Web site


Research Field
Public Health
Hygiene and public health (non-laboratory)
Academic Background
Graduate School
The University of Tokyo , (Department of Social Medicine , Graduate School of Medicine)
The University of Tokyo , (School of Public Health , Graduate School of Medicine) , 2020

Kanazawa University , (医学部) , 2011

Master of Public Health , The University of Tokyo


Books, Articles, etc.
Married women's decision to delay childbearing, and loneliness, severe psychological distress, and suicidal ideation under crisis: online survey data analysis from 2020 to 2021.
BMC public health,23(1):1642-1642 2023(Aug. 28)
Author:Midori Matsushima; Hiroyuki Yamada; Naoki Kondo; Yuki Arakawa; Takahiro Tabuchi
Abstract:BACKGROUND: The COVID-19 pandemic has affected every aspect of our lives, including the decision to become pregnant. Existing literature suggests that infertility and the decision to delay childbearing at a younger age are associated with a lower level of well-being and regrets when women start to desire a baby. Thus, the decision to delay childbearing due to the pandemic could negatively affect the well-being of women. This study focuses on how pregnancy decisions affect the well-being of women during the COVID-19 pandemic. METHODS: From the Japan COVID-19 and Society Internet Survey, a nationally representative web-based survey, 768 observations of married women aged 18 to 50 years who had the intention of getting pregnant during the pre-pandemic period (conducted in 2020 and 2021) were used. Loneliness, severe psychological distress, and suicidal ideation were used as well-being indicators. For pooled data, a generalised estimated equation (GEE) model was used to estimate how pregnancy decision related to well-being indicators. For a sub-analysis, the sample was divided by the survey year and a Poisson regression model was used. RESULTS: The GEE analysis showed an association between delaying childbearing and severe psychological distress, with the prevalence ratio (PR) being 2.06 [95% CI (1.40-3.03)]. Furthermore, loneliness and suicidal ideation that occurred after the beginning of the pandemic were significantly related to the decision to delay childbearing-1.55 [95% CI (1.03,2.34)] and 2.55 [95% CI (1.45-4.51)], respectively. Moreover, these PRs were larger for 2021 compared to 2020. CONCLUSION: During the COVID-19 pandemic, approximately one-fifth of married women who had childbearing intentions before the pandemic decided to postpone pregnancy. They exhibited a deteriorated mental health state. Furthermore, the negative associations were larger in 2021 compared to 2020. Loneliness has negative consequences for both mental and physical health, as well as elevated severe psychological distress and suicidal ideation among those who decided to postpone pregnancy. Therefore, the current results should not be overlooked by society.

Remote Communication and Loneliness During the COVID-19 Pandemic: Cross-Sectional Study
Journal of Medical Internet Research 2023(Jul. 11)
Author:Yuki Arakawa; Kosuke Inoue; Daisuke Nishioka; Atsushi Nakagomi; Takahiro Tabuchi; Naoki Kondo

Effectiveness of mHealth consultation services for preventing postpartum depressive symptoms: a randomized clinical trial
BMC Medicine,21(1) 2023(Jun. 26)
Author:Yuki Arakawa; Maho Haseda; Kosuke Inoue; Daisuke Nishioka; Shiho Kino; Daisuke Nishi; Hideki Hashimoto; Naoki Kondo
Abstract:Abstract Background Although many conventional healthcare services to prevent postpartum depression are provided face-to-face, physical and psychosocial barriers remain. These barriers may be overcome by using mobile health services (mHealth). To examine the effectiveness of mHealth professional consultation services in preventing postpartum depressive symptoms in real-world settings, we conducted this randomized controlled trial in Japan, where universal free face-to-face perinatal care is available. Methods This study included 734 pregnant women living in Yokohama city who could communicate in Japanese, recruited at public offices and childcare support facilities. The participants were randomized to the mHealth group (intervention, n = 365), where they could use a free app-based mHealth consultation service with gynecologists/obstetricians, pediatricians, and midwives whenever and as many times as they wanted between 6 p.m. and 10 p.m. on weekdays throughout their pregnancy and postpartum periods (funded by the City of Yokohama government) or the usual care group (control, n = 369). The primary outcome was the risk of elevated postpartum depressive symptoms, defined as Edinburgh Postnatal Depression Scale score ≥ 9. Secondary outcomes were self-efficacy, loneliness, perceived barriers to healthcare access, number of clinic visits, and ambulance usage. All outcomes were collected three months post-delivery. We also conducted subgroup analyses assessing the differences in the treatment effect by sociodemographic status. Results Most women completed all questionnaires (n = 639 of 734, response rate: 87%). The mean baseline age was 32.9 ± 4.2 years, and 62% were primipara. Three months post-delivery, women in the mHealth group had a lower risk of elevated postpartum depressive symptoms (47/310 [15.2%]) compared to the usual care group (75/329 [22.8%], risk ratio: 0.67 [95% confidence interval: 0.48–0.93]). Compared with the usual care group, women in the mHealth group had higher self-efficacy, less loneliness, and fewer perceived barriers to healthcare access. No differences were observed in the frequency of clinic visits or ambulance usage. Furthermore, in the subgroup analyses, we did not find differences in the treatment effect by sociodemographic status. Conclusions Local government-funded mHealth consultation services have a preventive effect on postpartum depressive symptoms, removing physical and psychological barriers to healthcare access in real-world settings. Trial registration UMIN-CTR identifier: UMIN000041611. Registered 31 August 2021.

Social isolation, loneliness, and their correlates in older Japanese adults
Psychogeriatrics 2023(May)
Author:Shiho Kino; Andrew Stickley; Yuki Arakawa; Masashige Saito; Tami Saito; Naoki Kondo

Journal of Epidemiology,33(Suppl.1):91-91 2023(Feb.)
Author:荒川 裕貴; 井上 浩輔; 長谷田 真帆; 西岡 大輔; 木野 志保; 西 大輔; 近藤 尚己

Impact of the COVID-19 pandemic on pregnancy postponement - evidence from Japan
Author:Midori Matsushima; Hiroyuki Yamada; Naoki Kondo; Yuki Arakawa; Takahiro Tabuchi
Abstract:Japan has faced a decline in fertility since the coronavirus disease 2019 (COVID-19) pandemic. This study aimed to investigate the rate of pregnancy postponement and its contributing factors, with a particular focus on economic- and COVID-19 infection-related indicators. This study used data from 768 observations of married women aged 18 to 50 years with pregnancy intentions. The data were obtained from two rounds of a large web-based survey conducted by the Japan COVID-19 and Society Internet Survey (JACSIS) in 2020 and 2021. A generalised estimating equation (GEE) model was employed, as well as Poisson regression models for sub-sample analysis divided by year to estimate the year differential magnitude of the contributing factors' impacts. Approximately 20% of married women with childbearing intentions postponed their childbearing. The analyses revealed that declining income and anxiety about future household finances were significantly related to delayed childbearing, while fear of COVID-19 and infection rate were not. Additionally, the adverse effects of unfavourable economic conditions were stronger in 2021. Notably, age did not influence the decision of pregnancy postponement. Older women postponed pregnancy just as much as younger women. In conclusion, this study confirmed that the COVID-19 pandemic, particularly its related adverse economic conditions, contributed to Japan's current baby bust. Considering that advanced maternal age is already common in Japan, this decreased fertility may result in the long-term negative consequence of further population decline.

Worry about crime and loneliness in nine countries of the former Soviet Union
SSM - Population Health,21 2023
Author:Stickley, A.; Kondo, N.; Inoue, Y.; Kanamori, M.; Kino, S.; Arakawa, Y.; McKee, M.

体外循環式心肺蘇生(ECPR)を施行した院外心停止(OHCA)患者に対するステロイド投与の有効性 DPCデータベース研究
日本救急医学会雑誌,33(10):718-718 2022(Oct.)
Author:平野 貴規; 中島 幹男; 大邉 寛幸; 岩崎 夢大; 荒川 裕貴; 笹渕 裕介; 康永 秀生

オンライン健康医療相談による産後うつ予防効果 ランダム化比較試験
日本公衆衛生学会総会抄録集,81回:207-207 2022(Sep.)
Author:荒川 裕貴; 長谷田 真帆; 井上 浩輔; 西岡 大輔; 木野 志保; 西 大輔; 橋本 英樹; 近藤 尚己

The effect of social restrictions, loss of social support, and loss of maternal autonomy on postpartum depression in 1 to 12-months postpartum women during the COVID-19 pandemic
Journal of Affective Disorders,307:206-214 2022(Jun.)
Author:Kanami Tsuno; Sumiyo Okawa; Midori Matsushima; Daisuke Nishi; Yuki Arakawa; Takahiro Tabuchi

The concept of social determinants of health in health promotion policies in Thailand, Sweden, England, USA, and Japan: A narrative review
Japanese Journal of Public Health,69(5):338-356 2022(Mar.)
Author:Marisa NISHIO; Maho HASEDA; Mariko KANAMORI; Yuki ARAKAWA; Naoki KONDO
Abstract:Objectives The Commission on Social Determinants of Health (CSDH) of the World Health Organization (WHO) recommends that national and municipal governments take adequate steps to "improve daily living conditions," "(create governance to) tackle the inequitable distribution of power, money, and resources," and "measure and understand the problem and assess the impact of" government actions. This study provides an analysis of the health promotion policies of Japan and other countries and examines their conformance to these recommendations, and offers suggestions for developing a conducive social environment for Japan's health promotion policies.Methods We reviewed grey literature on health promotion policies in Japan, the USA, England, Sweden, and Thailand, extracting the definitions of health inequalities and their characterization in each policy, and analyzing each document vis-á-vis the CSDH's three recommendations and "comprehensive national health equity surveillance framework."Results The health promotion policies of Japan, England, Sweden, and the USA had similar definitions of health inequality, emphasizing fairness and prioritizing the reduction of health inequality as the key strategy for health promotion. However, their primary approaches to improve daily living conditions varied: In Japan, the primary approach is to create opportunities for participation and ensure access to social resources. Meanwhile, the USA relies largely on objective assessments and scientific evidence-based actions. England focused on enhancing support for socially disadvantaged individuals and areas. In Sweden, a universal intervention based on life-course perspectives was stressed, while Thailand attached much value to a multi-sectoral collaboration. All these countries, however, had a health policy implementation plan in quest of the elimination of unfair distributions of power, money, and resources. The USA planned to monitor a total of 187 social factors, the largest number among the 6 subject countries. It also had a wide range of perspectives on health inequalities, including income and disability, as well as conducting assessments using information from outside the health sector, with items assessed at various levels, including individual, regional, and national policies.Conclusion With reference to these approaches in other countries, for Japan's health promotion policies, we recommend: (1) grasping of health inequalities from more diversified perspectives and adopting measures to address them, (2) setting targets based on multi-level social determinants of individual behavior and health status, including individual socioeconomic status, and (3) promoting collaborative initiatives and use of indicators with entities outside the health sector.

Corticosteroid use with extracorporeal cardiopulmonary resuscitation for out-of-hospital cardiac arrest: A nationwide observational study
Resuscitation Plus,12 2022
Author:Hirano, T.; Nakajima, M.; Ohbe, H.; Kaszynski, R.H.; Iwasaki, Y.; Arakawa, Y.; Sasabuchi, Y.; Fushimi, K.; Matsui, H.; Yasunaga, H.

日本公衆衛生学会総会抄録集,80回:221-221 2021(Nov.)
Author:荒川 裕貴; 西岡 大輔; 田淵 貴大; Inoue Kosuke; 近藤 尚己

社会環境整備によるヘルスプロモーション活動の目標設定 これからの10年の活動に向けた社会環境整備目標の項目提案
日本公衆衛生学会総会抄録集,80回:120-120 2021(Nov.)
Author:近藤 尚己; 西尾 麻里沙; 相田 潤; 田淵 貴大; 長谷田 真帆; 金森 万里子; 荒川 裕貴; 伊藤 ゆり

日本公衆衛生学会総会抄録集,80回:221-221 2021(Nov.)
Author:荒川 裕貴; 西岡 大輔; 田淵 貴大; Inoue Kosuke; 近藤 尚己

Rural Social Participation through Osekkai during the COVID-19 Pandemic
International Journal of Environmental Research and Public Health,18(11):5924-5924 2021(May 31)
Author:Ryuichi Ohta; Akiko Yata; Yuki Arakawa; Koichi Maiguma; Chiaki Sano

コロナ禍における社会制限及びサポート喪失と産後うつとの関連 JACSISスタディ
日本公衆衛生学会総会抄録集,80回:237-237 2021(Nov.)
Author:津野 香奈美; 大川 純代; 松島 みどり; 荒川 裕貴; 田淵 貴大

社会環境整備によるヘルスプロモーション活動の目標設定 これからの10年の活動に向けた社会環境整備目標の項目提案
日本公衆衛生学会総会抄録集,80回:120-120 2021(Nov.)
Author:近藤 尚己; 西尾 麻里沙; 相田 潤; 田淵 貴大; 長谷田 真帆; 金森 万里子; 荒川 裕貴; 伊藤 ゆり