Toshiyuki Ojima

6.0k total citations
257 papers, 4.1k citations indexed

About

Toshiyuki Ojima is a scholar working on General Health Professions, Health and Public Health, Environmental and Occupational Health. According to data from OpenAlex, Toshiyuki Ojima has authored 257 papers receiving a total of 4.1k indexed citations (citations by other indexed papers that have themselves been cited), including 60 papers in General Health Professions, 57 papers in Health and 51 papers in Public Health, Environmental and Occupational Health. Recurrent topics in Toshiyuki Ojima's work include Health disparities and outcomes (55 papers), Nutritional Studies and Diet (24 papers) and Health and Wellbeing Research (15 papers). Toshiyuki Ojima is often cited by papers focused on Health disparities and outcomes (55 papers), Nutritional Studies and Diet (24 papers) and Health and Wellbeing Research (15 papers). Toshiyuki Ojima collaborates with scholars based in Japan, United States and Mongolia. Toshiyuki Ojima's co-authors include Katsunori Kondo, Yosikazu Nakamura, Izumi Oki, Hiroshi Hirai, Hiroshi Yanagawa, Naoki Kondo, Masashige Saito, Chiyoe Murata, Yosuke Shibata and Mieko Nakamura and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Diabetes Care.

In The Last Decade

Toshiyuki Ojima

228 papers receiving 3.9k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Toshiyuki Ojima Japan 35 834 756 729 706 473 257 4.1k
Yumi Sugawara Japan 34 498 0.6× 420 0.6× 397 0.5× 810 1.1× 295 0.6× 200 4.0k
Belong Cho South Korea 39 955 1.1× 296 0.4× 519 0.7× 968 1.4× 458 1.0× 283 5.5k
Iain K. Crombie United Kingdom 36 932 1.1× 386 0.5× 398 0.5× 929 1.3× 299 0.6× 126 4.5k
Sadanobu Kagamimori Japan 42 1.3k 1.6× 468 0.6× 452 0.6× 1.5k 2.1× 281 0.6× 197 5.9k
Arpo Aromaa Finland 42 651 0.8× 404 0.5× 976 1.3× 964 1.4× 374 0.8× 90 5.9k
Nathalie Auger Canada 32 687 0.8× 595 0.8× 287 0.4× 875 1.2× 300 0.6× 276 4.6k
Abla Mehio Sibai Lebanon 36 799 1.0× 312 0.4× 407 0.6× 1.5k 2.2× 268 0.6× 171 4.4k
Tiffany K. Gill Australia 41 976 1.2× 428 0.6× 822 1.1× 1.6k 2.3× 222 0.5× 213 6.6k
Maziar Moradi‐Lakeh Iran 34 584 0.7× 219 0.3× 1.0k 1.4× 869 1.2× 344 0.7× 201 6.1k
Lin Yang Canada 40 815 1.0× 390 0.5× 490 0.7× 1.1k 1.5× 540 1.1× 294 6.6k

Countries citing papers authored by Toshiyuki Ojima

Since Specialization
Citations

This map shows the geographic impact of Toshiyuki Ojima's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Toshiyuki Ojima with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Toshiyuki Ojima more than expected).

Fields of papers citing papers by Toshiyuki Ojima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Toshiyuki Ojima. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Toshiyuki Ojima. The network helps show where Toshiyuki Ojima may publish in the future.

Co-authorship network of co-authors of Toshiyuki Ojima

This figure shows the co-authorship network connecting the top 25 collaborators of Toshiyuki Ojima. A scholar is included among the top collaborators of Toshiyuki Ojima based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Toshiyuki Ojima. Toshiyuki Ojima is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Nakamura, Mieko, et al.. (2025). Scope of practice of Japanese primary care physicians and its associated factors: a cross-sectional study. Family Medicine and Community Health. 13(1). e003191–e003191.
2.
Ueno, Keiko, et al.. (2024). Association between social support and ambulance use among older people in Japan: an empirical cross-sectional study. BMC Emergency Medicine. 24(1). 37–37. 1 indexed citations
3.
Miyashita, Koichi, Hironao Hozumi, Eiji Nakatani, et al.. (2024). Impact of preexisting interstitial lung disease on mortality in COVID-19 patients from the early pandemic to the delta variant epidemic: a nationwide population-based study. Respiratory Research. 25(1). 95–95. 3 indexed citations
4.
Tsuji, Taishi, Eisaku Okada, Masashige Saito, et al.. (2024). Community-level group sports participation and all-cause, cardiovascular disease, and cancer mortality: a 7-year longitudinal study. International Journal of Behavioral Nutrition and Physical Activity. 21(1). 44–44.
5.
Saito, Masashige, et al.. (2024). Social disconnection and suicide mortality among Japanese older adults: A seven-year follow-up study. Social Science & Medicine. 347. 116778–116778. 6 indexed citations
6.
7.
Sano, Masaki, Kazunori Inuzuka, Yasuo Takehara, et al.. (2023). Pre-Operative Four Dimensional Flow Sensitive Magnetic Resonance Imaging Assessment of Aortic Side Branches as a Method to Predict Risk of Type II Endoleak Resulting in Sac Enlargement After EVAR. European Journal of Vascular and Endovascular Surgery. 66(1). 17–26. 2 indexed citations
8.
Nakamura, Mieko, et al.. (2022). Multimorbidity patterns and the relation to self-rated health among older Japanese people: a nationwide cross-sectional study. BMJ Open. 12(9). e063729–e063729. 14 indexed citations
9.
Kondo, Katsunori, et al.. (2022). Spatial statistical analysis of regional disparities in suicide among policy units in Japan: Using the Bayesian hierarchical model. SHILAP Revista de lepidopterología. 2(8). e0000271–e0000271. 6 indexed citations
10.
11.
Tsuji, Taishi, et al.. (2021). Community-level educational attainment and dementia: a 6-year longitudinal multilevel study in Japan. BMC Geriatrics. 21(1). 661–661. 17 indexed citations
12.
Ushirozako, Hiroki, Tomohiko Hasegawa, Shigeto Ebata, et al.. (2020). Impact of Early Intervertebral Osseous Union After Posterior Lumbar Interbody Fusion on Health-Related Quality of Life. Global Spine Journal. 12(3). 399–408. 7 indexed citations
13.
14.
Hayasaka, Shinya, Toshiyuki Ojima, Yuri Sasaki, et al.. (2018). Bathing Frequency and Onset of Functional Disability Among Japanese Older Adults: A Prospective 3-Year Cohort Study From the JAGES. Journal of Epidemiology. 29(12). 451–456. 9 indexed citations
15.
16.
Yamada, Tetsuji, et al.. (2015). Access Disparity and Health Inequality of the Elderly: Unmet Needs and Delayed Healthcare. International Journal of Environmental Research and Public Health. 12(2). 1745–1772. 54 indexed citations
17.
Saito, Masashige, Katsunori Kondo, Toshiyuki Ojima, Naoki Kondo, & Hiroshi Hirai. (2013). Different association between the loss of healthy life expectancy and social isolation by life satisfaction among older people. 35(3). 331–341.
18.
Hashimoto, Shuji, Miyuki Kawado, Hiroya Yamada, et al.. (2012). Gains in Disability-Free Life Expectancy From Elimination of Diseases and Injuries in Japan. Journal of Epidemiology. 22(3). 199–204. 15 indexed citations
19.
Hashimoto, Shuji, Miyuki Kawado, Yoshitaka Murakami, et al.. (2010). Trends in Disability-Free Life Expectancy in Japan, 1995–2004. Journal of Epidemiology. 20(4). 308–312. 43 indexed citations
20.
Ojima, Toshiyuki, Yosikazu Nakamura, Hiroshi Yanagawa, et al.. (1998). Relationship Between the Level of Activities of Daily Living and Chronic Medical Conditions Among the Elderly. Journal of Epidemiology. 8(5). 272–277. 20 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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