Takefumi Kitazawa

502 total citations
26 papers, 376 citations indexed

About

Takefumi Kitazawa is a scholar working on Epidemiology, Economics and Econometrics and Public Health, Environmental and Occupational Health. According to data from OpenAlex, Takefumi Kitazawa has authored 26 papers receiving a total of 376 indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Epidemiology, 8 papers in Economics and Econometrics and 7 papers in Public Health, Environmental and Occupational Health. Recurrent topics in Takefumi Kitazawa's work include Health Systems, Economic Evaluations, Quality of Life (5 papers), Occupational Health and Safety Research (3 papers) and Medical Malpractice and Liability Issues (3 papers). Takefumi Kitazawa is often cited by papers focused on Health Systems, Economic Evaluations, Quality of Life (5 papers), Occupational Health and Safety Research (3 papers) and Medical Malpractice and Liability Issues (3 papers). Takefumi Kitazawa collaborates with scholars based in Japan and China. Takefumi Kitazawa's co-authors include Tomonori Hasegawa, Kunichika Matsumoto, Kanako Seto, Shigeru Fujita, Shinya Ito, Yinghui Wu, Mineto Morita, Shuhei Iida, Takashi Muto and Ai Yoshida and has published in prestigious journals such as PLoS ONE, BMC Health Services Research and International Journal for Quality in Health Care.

In The Last Decade

Takefumi Kitazawa

25 papers receiving 361 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Takefumi Kitazawa Japan 11 118 89 80 70 52 26 376
Kunichika Matsumoto Japan 13 155 1.3× 113 1.3× 101 1.3× 81 1.2× 64 1.2× 48 530
Aymen Elsous Palestinian Territory 12 132 1.1× 40 0.4× 83 1.0× 35 0.5× 48 0.9× 33 452
David Washburn United States 11 141 1.2× 66 0.7× 60 0.8× 77 1.1× 45 0.9× 22 355
Rafael Manzanera Spain 9 112 0.9× 35 0.4× 30 0.4× 52 0.7× 76 1.5× 42 317
Natalie A. Rivadeneira United States 13 226 1.9× 35 0.4× 52 0.7× 61 0.9× 72 1.4× 26 454
Dorothy Nyberg United States 7 102 0.9× 70 0.8× 24 0.3× 122 1.7× 31 0.6× 9 372
Snehal Patel United States 6 143 1.2× 43 0.5× 29 0.4× 43 0.6× 30 0.6× 12 325
Quality 5 172 1.5× 58 0.7× 46 0.6× 61 0.9× 25 0.5× 21 375
Veronica Millicent Dzomeku Ghana 16 140 1.2× 25 0.3× 58 0.7× 110 1.6× 76 1.5× 62 681
Nabil Natafgi United States 13 256 2.2× 61 0.7× 54 0.7× 25 0.4× 49 0.9× 39 548

Countries citing papers authored by Takefumi Kitazawa

Since Specialization
Citations

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

Fields of papers citing papers by Takefumi Kitazawa

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Takefumi Kitazawa

This figure shows the co-authorship network connecting the top 25 collaborators of Takefumi Kitazawa. A scholar is included among the top collaborators of Takefumi Kitazawa 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 Takefumi Kitazawa. Takefumi Kitazawa 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.
2.
Seto, Kanako, et al.. (2019). Quality assessment of clinical practice guidelines using the AGREE instrument in Japan: A time trend analysis. PLoS ONE. 14(5). e0216346–e0216346. 5 indexed citations
3.
Seto, Kanako, et al.. (2019). The structure of the quality of clinical practice guidelines with the items and overall assessment in AGREE II: a regression analysis. BMC Health Services Research. 19(1). 788–788. 9 indexed citations
4.
Matsumoto, Kunichika, et al.. (2018). Cost of illness of leukemia in Japan – Trend analysis and future projections. Journal of the Chinese Medical Association. 81(9). 796–803. 4 indexed citations
5.
Matsumoto, Kunichika, Yinghui Wu, Takefumi Kitazawa, et al.. (2018). Cost of illness of hepatocellular carcinoma in Japan: A time trend and future projections. PLoS ONE. 13(6). e0199188–e0199188. 20 indexed citations
6.
Matsumoto, Kunichika, et al.. (2018). Cost of illness of ischemic heart disease in Japan: a time trend and future projections. Environmental Health and Preventive Medicine. 23(1). 21–21. 10 indexed citations
7.
Kitazawa, Takefumi, Kunichika Matsumoto, Shigeru Fujita, et al.. (2017). Cost of illness of non‐alcoholic liver cirrhosis in Japan: A time trend analysis and future projections. Hepatology Research. 48(2). 176–183. 8 indexed citations
8.
Kitazawa, Takefumi, Kunichika Matsumoto, Shigeru Fujita, Kanako Seto, & Tomonori Hasegawa. (2017). Cost Analysis of Transplantation in Japan, Performed With the Use of the National Database. Transplantation Proceedings. 49(1). 4–9. 18 indexed citations
9.
Seto, Kanako, et al.. (2017). Evaluation of clinical practice guidelines using the AGREE instrument: comparison between data obtained from AGREE I and AGREE II. BMC Research Notes. 10(1). 716–716. 6 indexed citations
10.
Kitazawa, Takefumi, Kunichika Matsumoto, Shigeru Fujita, et al.. (2017). Effects of the concentration of digestive surgical operations in regional Japan. Surgery Today. 48(4). 416–421. 1 indexed citations
11.
Seto, Kanako, et al.. (2015). Informing health policy in Japan: A mixed‐model estimation to compare the cost of illness of cervical cancer and endometrial cancer. Journal of obstetrics and gynaecology research. 42(4). 446–456. 3 indexed citations
12.
Kitazawa, Takefumi, et al.. (2015). Cost of illness of the prostate cancer in Japan—a time-trend analysis and future projections. BMC Health Services Research. 15(1). 453–453. 23 indexed citations
13.
Matsumoto, Kunichika, et al.. (2015). Cost of illness of breast cancer in Japan: trends and future projections. BMC Research Notes. 8(1). 539–539. 24 indexed citations
14.
Seto, Kanako, et al.. (2015). Cost of illness of the Cervical Cancer of the uterus in Japan - a time trend and future projections. BMC Health Services Research. 15(1). 104–104. 19 indexed citations
15.
Ito, Shinya, Shigeru Fujita, Kanako Seto, et al.. (2014). Occupational stress among healthcare workers in Japan. Work. 49(2). 225–234. 30 indexed citations
16.
Kitazawa, Takefumi, Kunichika Matsumoto, Shigeru Fujita, et al.. (2014). Perioperative patient safety indicators and hospital surgical volumes. BMC Research Notes. 7(1). 117–117. 10 indexed citations
17.
Matsumoto, Kunichika, et al.. (2013). Cost of illness of the stomach cancer in Japan - a time trend and future projections. BMC Health Services Research. 13(1). 283–283. 38 indexed citations
18.
Fujita, Shigeru, Shinya Ito, Kanako Seto, et al.. (2011). Risk factors of workplace violence at hospitals in Japan. Journal of Hospital Medicine. 7(2). 79–84. 70 indexed citations
19.
Hasegawa, Tomonori, Shigeru Fujita, Kanako Seto, Takefumi Kitazawa, & Kunichika Matsumoto. (2011). Patients’ Identification and Reporting of Unsafe Events at Six Hospitals in Japan. The Joint Commission Journal on Quality and Patient Safety. 37(11). 502–AP1. 17 indexed citations
20.
Sakamaki, Hiroyuki, Takefumi Kitazawa, & Takashi Muto. (2008). Study of Clarifying Incidence of Lifestyle-Related Diseases and Related Complications and Its Medical Expenses Using Government-Managed Health Insurance Data. Nippon Eiseigaku Zasshi (Japanese Journal of Hygiene). 63(3). 651–661. 1 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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