Yasuo Suyama

1.7k total citations · 1 hit paper
31 papers, 1.4k citations indexed

About

Yasuo Suyama is a scholar working on General Health Professions, Public Health, Environmental and Occupational Health and Health. According to data from OpenAlex, Yasuo Suyama has authored 31 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in General Health Professions, 7 papers in Public Health, Environmental and Occupational Health and 6 papers in Health. Recurrent topics in Yasuo Suyama's work include Health disparities and outcomes (6 papers), Nutritional Studies and Diet (5 papers) and Health and Wellbeing Research (5 papers). Yasuo Suyama is often cited by papers focused on Health disparities and outcomes (6 papers), Nutritional Studies and Diet (5 papers) and Health and Wellbeing Research (5 papers). Yasuo Suyama collaborates with scholars based in Japan, Ireland and United Kingdom. Yasuo Suyama's co-authors include Wataru Koyano, Hiroshi Shibata, Hiroshi Haga, Katsuharu Nakazato, Ryota Itoh, Hiroshi Shibata, Hiroshi Haga, Satoshi Toyokawa, Yasuki Kobayashi and Seiji Yasumura and has published in prestigious journals such as American Journal of Clinical Nutrition, European Journal of Clinical Nutrition and Diabetes Research and Clinical Practice.

In The Last Decade

Yasuo Suyama

30 papers receiving 1.3k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Measurement of competence: reliability and validity of the TMIG Index of Competence

1991 756 citations Wataru Koyano, Hiroshi Shibata et al. Archives of Gerontology and Geriatrics profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Yasuo Suyama Japan	16	403	354	349	262	226	31	1.4k
Wataru Koyano Japan	14	506 1.3×	324 0.9×	406 1.2×	313 1.2×	263 1.2×	22	1.4k
Shu Kumagai Japan	17	325 0.8×	410 1.2×	323 0.9×	204 0.8×	273 1.2×	54	1.1k
Taizo Wada Japan	21	383 1.0×	457 1.3×	381 1.1×	266 1.0×	264 1.2×	67	1.6k
Marie Ernsth Bravell Sweden	19	193 0.5×	276 0.8×	398 1.1×	182 0.7×	178 0.8×	63	1.1k
Taishi Tsuji Japan	25	780 1.9×	338 1.0×	553 1.6×	234 0.9×	173 0.8×	129	1.7k
Hidenori Amano Japan	26	450 1.1×	1.1k 3.1×	434 1.2×	370 1.4×	731 3.2×	74	2.2k
Marika Salminen Finland	19	153 0.4×	171 0.5×	200 0.6×	210 0.8×	169 0.7×	60	1.0k
Raija Leinonen Finland	20	642 1.6×	406 1.1×	442 1.3×	163 0.6×	109 0.5×	34	1.4k
Yumi Kimura Japan	17	146 0.4×	361 1.0×	182 0.5×	138 0.5×	206 0.9×	50	945
Ryota Sakamoto Japan	21	145 0.4×	399 1.1×	185 0.5×	142 0.5×	212 0.9×	53	1.2k

Countries citing papers authored by Yasuo Suyama

Since Specialization

Citations

This map shows the geographic impact of Yasuo Suyama'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 Yasuo Suyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Yasuo Suyama more than expected).

Fields of papers citing papers by Yasuo Suyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Yasuo Suyama. 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 Yasuo Suyama. The network helps show where Yasuo Suyama may publish in the future.

Co-authorship network of co-authors of Yasuo Suyama

This figure shows the co-authorship network connecting the top 25 collaborators of Yasuo Suyama. A scholar is included among the top collaborators of Yasuo Suyama 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 Yasuo Suyama. Yasuo Suyama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Toyokawa, Satoshi, et al.. (2014). Five-year follow-up study of the association between periodontal disease and myocardial infarction among Japanese male workers: MY Health Up Study. Journal of Public Health. 37(4). fdu076–fdu076. 28 indexed citations

Toyokawa, Satoshi, Kazuo Inoue, Mariko Inoue, et al.. (2012). Association between Periodontal Disease and Peptic Ulcers among Japanese Workers: MY Health Up Study. Global Journal of Health Science. 4(2). 42–9. 6 indexed citations

Toyokawa, Satoshi, et al.. (2011). A Comparison of Lifestyle, Mental Stress, and Medical Check-up Results between Tanshin-funin Workers and Workers Living with Their Families. SANGYO EISEIGAKU ZASSHI. 54(1). 22–22. 3 indexed citations

Nagamatsu, Toshiya, et al.. (2010). Influence of organized sport activity on stress response and mental health in adolescents: A 15-month cohort study in high school students. 1–7.

Kai, Yuko, et al.. (2010). Buffering Effect of Social Support in the Workplace on Job Strain and Depressive Symptoms. SANGYO EISEIGAKU ZASSHI. 52(3). 140–140. 13 indexed citations

Inoue, Mariko, Satoshi Toyokawa, Kazuo Inoue, et al.. (2010). Lifestyle, weight perception and change in body mass index of Japanese workers: MY Health Up Study. Public Health. 124(9). 530–537. 26 indexed citations

Itoh, Ryota, et al.. (1999). Dietary sodium, an independent determinant for urinary deoxypyridinoline in elderly women. A cross-sectional study on the effect of dietary factors on deoxypyridinoline excretion in 24-h urine specimens from 763 free-living healthy Japanese. European Journal of Clinical Nutrition. 53(11). 886–890. 15 indexed citations

Itoh, Ryota, Nobuyoshi Nishiyama, & Yasuo Suyama. (1998). Dietary protein intake and urinary excretion of calcium: a cross-sectional study in a healthy Japanese population. American Journal of Clinical Nutrition. 67(3). 438–444. 38 indexed citations

Itoh, Ryota & Yasuo Suyama. (1996). Sodium excretion in relation to calcium and hydroxyproline excretion in a healthy Japanese population. American Journal of Clinical Nutrition. 63(5). 735–740. 52 indexed citations

10.

Haga, Hiroshi, et al.. (1995). Self-rated Health as a Predictor of Active Life in the Community Elderly. Journal of Epidemiology. 5(1). 11–15. 30 indexed citations

11.

Suyama, Yasuo & Roichi Itoh. (1993). Multivariate Analysis of Dietary Habits in 931 Elderly Japanese Males. Journal of Nutrition for the Elderly. 12(2). 1–12. 12 indexed citations

12.

Shibata, Hiroshi, Hiroshi Haga, Yasuo Suyama, et al.. (1992). Predictors of all-cause mortality between ages 70 and 80: the Koganei study. Archives of Gerontology and Geriatrics. 14(3). 283–297. 42 indexed citations

13.

Koyano, Wataru, Hiroshi Shibata, Katsuharu Nakazato, Hiroshi Haga, & Yasuo Suyama. (1991). Measurement of competence: reliability and validity of the TMIG Index of Competence. Archives of Gerontology and Geriatrics. 13(2). 103–116. 756 indexed citations breakdown →

14.

Haga, Hiroshi, Hiroshi Shibata, Mitsuo Ueno, et al.. (1991). Factors contributing to longitudinal changes in activities of daily living (ADL): The Koganei study. Journal of Cross-Cultural Gerontology. 6(1). 91–99. 25 indexed citations

15.

Itoh, Ryota, et al.. (1990). Serum ascorbic acid and HDL cholesterol in a healthy elderly Japanese population.. PubMed. 60(4). 360–5. 8 indexed citations

16.

Shibata, Hiroshi, Hiroshi Haga, Mitsuo Ueno, et al.. (1990). Chewing ability in relation of physical health status.. Nippon Ronen Igakkai Zasshi Japanese Journal of Geriatrics. 27(1). 63–68. 17 indexed citations

17.

Koyano, Wataru, et al.. (1988). Prevalence of Disability in Instrumental Activities of Daily Living Among Elderly Japanese. Journal of Gerontology. 43(2). S41–S45. 35 indexed citations

18.

Shibata, Hiroshi, et al.. (1987). Serum total and HDL cholesterols according to reproductive status in Japanese females. Journal of Chronic Diseases. 40(3). 209–213. 13 indexed citations

19.

Haga, Hiroshi, Yasuo Suyama, Toshihisa Matsuzaki, et al.. (1984). Relationship of serum albumin concentration to ageing and survivorship in the community volunteers aged 70.. Nippon Ronen Igakkai Zasshi Japanese Journal of Geriatrics. 21(6). 588–592. 4 indexed citations

20.

Shibata, Hiroshi, Yasuo Suyama, & T. Matsuzaki. (1981). . Nippon Ronen Igakkai Zasshi Japanese Journal of Geriatrics. 18(6). 456–462. 2 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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