PhD student, Department of Health and Social Behavior, the University of Tokyo, Tokyo, Japan
mkanamori [a] m.u-tokyo.ac.jp
Visiting researcher, Department of Public Health Sciences, Stockholm University, Stockholm, Sweden

PhD Supervisor: Prof. Naoki Kondo, Department of Social Epidemiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan

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ORCID id: 0000-0001-8733-1336


I am a doctoral student at the University of Tokyo. I do research in public health, specifically social epidemiology. My thesis is focused on the suicide gap between urban and rural areas, and the underlying social structure. I am involved in the projects ‘Japan Gerontological Evaluation Study (JAGES)’ and ‘Social determinants of health among individuals with foreign background (SMASH)’. In the future, I am willing to try One Health or One Welfare research, combining human and animal health and well-being, by utilizing my experience as a veterinarian.


Master of Public Health, the University of Tokyo, 2018
Doctor of Veterinary Medicine, Hokkaido University, 2015

Peer Reviewed Publications

Mariko Kanamori, Masamichi Hanazato, Katsunori Kondo, Andrew Stickley, Naoki Kondo. Neighborhood farm density, types of agriculture, and depressive symptoms among older farmers: a cross-sectional study. BMC Public Health. March 2021.
https://doi.org/10.1186/s12889-021-10469-6 (OpenAccess)

Against a backdrop of common structural changes occurring worldwide in the agricultural sector including increasing global competition, a decline in the number of farms, and increasing farm size farmers’ mental health is increasingly becoming a global cause for concern. In Japan, farming is characterized by both a declining and aging farming population. Farmers may suffer from serious health issues and social isolation that might be attributable to a variety of factors including the neighborhood environment. Despite this, until now there has been little research on the mental health of farmers in Japan and the factors associated with it. The aim of this study was to examine whether neighborhood farm density and the type of agriculture are associated with the mental health of farmers in Japan. More specifically, we used data from the Japan Gerontological Evaluation Study to evaluate the cross-level interaction for depressive symptoms between farm density at the neighborhood level and occupation. Results from a Poisson regression analysis showed clear differences in depressive risk among farmers by neighborhood farm density.

Mariko Kanamori, Naoki Kondo, Sol Juarez, Andrea Dunlavy, Agneta Cederström, Mikael Rostila. Rural life and suicide: does the effect of the community context vary by country of birth? A Swedish registry-based multilevel cohort study. Social Science & Medicine. March 2020. https://doi.org/10.1016/j.socscimed.2020.112958 (OpenAccess)

International migration is a global phenomenon, and has drawn extensive debate even in inclusive welfare states like Sweden. Immigrants may suffer from serious health issues, attributable to discrimination due to national immigration policies and negative social norms for immigrants in certain residential areas, and the impacts of this discrimination may vary across the places where they live. We therefore focused on rurality as a potential areal context strongly affecting the mental health of immigrants; and, using whole Swedish registry data, we evaluated the effect of its interaction with immigrants’ countries of birth on suicide risk. We found highly interesting results, showing clear differences in suicide risk by gender, areal size when evaluating rurality, and country of birth.

Koryu Sato, Airi Amemiya, Maho Haseda, Daisuke Takagi, Mariko Kanamori, Katsunori Kondo, Naoki Kondo. Post-disaster Changes in Social Capital and Mental Health: A Natural Experiment from the 2016 Kumamoto Earthquake. American Journal of Epidemiology. March 2020. https://doi.org/10.1093/aje/kwaa041 (OpenAccess)

Mariko Kanamori, Naoki Kondo, Yasuhide Nakamura. Infant mortality rates for farming and unemployed households in the Japanese prefectures: An ecological time trend analysis, 1999-2017. Journal of Epidemiology. February, 2020. https://doi.org/10.2188/jea.JE20190090 (OpenAccess)

This study focuses on the relationship between occupation, environment, and supports for perinatal parents given the recent rise in inter-prefectural inequality in the under-5 mortality rate in Japan since the 2000s. Using national vital statistics by household occupation between 1999 and 2017, we showed the existence and increasing time trend of inter-occupational inequality in infant mortality. Furthermore, the inequality among household occupation was different according to the regional characteristics. Our findings suggest that, even if Japan has the lowest infant mortality rate in the world for a long time, certain occupations and unemployed increase the risk of infant mortality.

Mariko Kanamori, Naoki Kondo. Suicide and Types of Agriculture: A Time-Series Analysis in Japan. Suicide and Life-Threatening Behavior. June 2019. https://doi.org/10.1111/sltb.12559 (OpenAccess)

This study builds upon our current knowledge of suicide rates in rural areas by examining possible correlations with the type of agriculture that predominates in each rural area. We have analyzed specific factors that may play a role in the heightened suicide risk in Japan’s rural and specifically agricultural municipalities, allowing researchers and policymakers alike to develop new insights into this phenomenon and potentially develop new interventions to more effectively target at-risk individuals based on compositional and contextual factors.

TOP DOWNLOADED PAPER 2018-2019 in Suicide and Life-Threatening Behavior (30 April, 2020). Among work published between January 2018 and December 2019, this paper received some of the most downloads in the 12 months following online publication.

International Conference Presentations

Mariko Kanamori, Naoki Kondo, Sol Juarez, Andrea Dunlavy, Agneta Cederström, Mikael Rostila. Rural life and suicide: do immigrants suffer or benefit from their community contexts? A Swedish registry-based multilevel cohort study. Understanding Inequalities Conference 2020, Edinburgh, Oral, June 2020

Mariko Kanamori, Naoki Kondo, Sol Juarez, Andrea Dunlavy, Agneta Cederström, Mikael Rostila. The urban-rural inequalities of suicide according to country of birth: A national registry-based cohort study using a three-level model in Sweden. The 11th International Society of Social Capital Research meeting, Edinburgh, Oral, June 2019

5 Presentations in academic conferences of Japan

Fellowships and Awards

2019-2022 Research fellow, the Japan Society for the Promotion of Science
2018-2022 Qualified student, Graduate Program for Social ICT Global Creative Leaders (GCL), the University of Tokyo


2019-2020 Travel Grant. Graduate Program for Social ICT Global Creative Leaders (GCL). the University of Tokyo
2019-2022 Research Grant. the Japan Society for the Promotion of Science
2018-2019 Research Grant. the Health Care Science Institute. Japan
2018-2019 Small Grant. Graduate Program for Social ICT Global Creative Leaders (GCL). the University of Tokyo
2018-2019 Research Grant. Seseragi foundation. Japan

Volunteer activities

From March to May 2020, I joined the National COVID-19 Cluster Taskforce at Ministry of Health, Labour and Welfare, Japan as a volunteer. I was in charge of the leader of the data collection team. Our contributions were acknowledged in the following papers.

Furuse Y, Sando E, Tsuchiya N, Miyahara R, Yasuda I, Ko YK, et al. Clusters of coronavirus disease in communities, Japan, January–April 2020. Emerg Infect Dis. 2020 Sep. https://doi.org/10.3201/eid2609.202272

Oshitani, et al. Cluster-based approach to Coronavirus Disease 2019 (COVID-19) response in Japan—February–April 2020. Japanese Journal of Infect Dis. 2020 June. https://www.niid.go.jp/niid/images/jjid/COVID19/No2_2020-363R1pre20200603.pdf


Sekai, Iwanami shoten, November 2020

Web magazine DR!VE “Beyond Meeting feat. Vision Hackers”, October 2020
https://drive.media/posts/27876 (Japanese language)

Forbes JAPAN August-September, 2020
https://forbesjapan.com/articles/detail/35960/1/1/1 (Japanese language)

The Hokkaido Shimbun Press – Okhotsk, 30 January, 2020

Animal Blog “The Voices of the dogs”, January 2020
Dogs are a part of beautiful nature: Dog’s shelter in Sweden (Japanese language)

Animal Blog “The Voices of the dogs”, November 2019
Hunting and animal welfare: Observation of a moose hunt in Sweden (Japanese language)

NHK (Japan Broadcasting Corporation) Hokkaido, November 2018