Education

• 2009-2012, Ph.D., mathematics, Tokyo University of Science
• 2005-2007, M.S.,  mathematics, Tokyo University of Science
• 2001-2005, B.S.,  mathematics, Tokyo University of Science

Profile

Yohei Kawasaki received the BS degree in mathematics in 2005 and the MS and Dr. Degrees in mathematical science from Tokyo University of Science, Japan in 2007 and 2012, respectively. He joined the Mitsubishi Tanabe Pharma Corporation, the National Center for Global Health and Medicine, Tokyo University of Science, in 2005, 2013 and 2014, respectively.
He has published over 60 research articles in reputed international journals. His research interests include the classical analysis, Bayesian analysis, Biostatistics and mathematical education.
He is currently a Lecturer in the Department of Drug Evaluation and Informatics, School of Pharmaceutical Sciences, University of Shizuoka, Japan. He also is a gest researcher of National Center for Global Health and Medicine and Shizuoka General Hospital as Biostatistician.

Research Interest

Biostatistics, Biostatistics, Mathematic Education

Professional Activities:

Honors and Awards

Publications

1. D. Narushima, Y. Kawasaki, S. Takamatsu, H. Yamada. Adverse Events Associated with Incretin-based Drugs in Spontaneous Reports: A Mixed Effects Logistic Regression Analysis of the Japanese spontaneous reports. PEER J. In press. 2016.
2. T. Nishijima, Y. Kawasaki,T. Kurosawa, N. Tanaka, Y. Kikuchi, S. Oka, H. Gatanaga. Urinary β2 microglobulin can predict TDF-related renal dysfunction in HIV-1-infectedpatientswho initiate TDF-containing antiretroviral therapy. AIDS.In press. 2016.
3. K. Ide, Y. Kawasaki, H. Yamada, N. Masaki. Regional differences in hepatitis C treatment with peginterferon and ribavirin in Japan: a retrospective cohort study. Drug design, development and therapy. In press. 2016.
4. K. Yui, G. Imataka, Y. Kawasaki. Increased docosahexaenoic acid/arachidonic acid ratio and down-regulation of a signaling mediator in individuals with autism spectrum disorders. Medical Chemistry. In press. 2016.
5. S. Tomitaka, Y. Kawasaki, K. Ide. H. Yamada, T. Furukawa, Y. Ono. Age-related changes in the distributions of depressive symptom items in the general population: Cross-sectional study using a mathematical model. PeerJ 4:e1547 (2016).
6. K. Yui, G. Imataka, Y. Kawasaki. Increased ω-3 polyunsaturated fatty acids/arachidonic acid ratios and upregulation of signaling mediator in individuals with autism spectrum disorders. Life Science.145(15), 205-212, 2016.
7. S. Tomitaka, Y. Kawasaki, K. Ide. H. Yamada, T. Furukawa, Y. Ono. Age-related changes in the distributions of depressive symptom items in the general population: Cross-sectional study using a mathematical model. PeerJ 4:e1547 (2016).
8. K.Yui, G. Imataka, Y. Kawasaki, H. Yamada.Down-regulation of a signaling mediator in association with lowered plasma arachidonic acid levels in individuals with autism spectrum disorders. Neuroscience Letters. 610, 223-228. 2016.
9. S. Tomitaka, Y. Kawasaki, K. Ide. H. Yamada, K. Miyake, T. Furukawa. Distribution of total depressive symptoms scores and each depressive symptom item in a sample of Japanese employees. PLOS ONE. In press. 2016.
10. Y. Kawasaki, H. Yamada. On Sample Size Determination Based on a Bayesian Index of non-inferiority for Two Independent Binomial Proportion. Journal of Statistics Advances in Theory and Applications. 14(2), 195-206, 2015.
11. K. Ide, H. Yamada, M. Sakurai, Y. Kawasaki, Y. Buno, K. Matsushita, M. Kaji, K. Fujimoto, M. Waki, M. Nakashima, K. Umegaki. Methods for estimating causal relationships of adverse events with dietary supplements.BMJ Open. 5, e009038, 2015.
12. K. Yui, G. Imataka, Y. Kawasaki, H. Yamada. Down-regulation of signaling mediator in related to increased ratio of docosahexaenoic acid/arachidonic acid in individuals with autism spectrum disorders. Journal of Translational Research and Developmental Disorders. 2(1), 1-9, 2015.
13. I. Sato, Y. Kawasaki, K. Ide, I. Sakakibara, K. Konomura, H. Yamada, Y. Tanaka.Clinical Data Interchange Standards Consortium Standardization of Biobank Data: A Feasibility Study.Biopreservation and Biobanking. In press. 2015.
14. S. Tomitaka, Y. Kawasaki, T. Furukawa. A distribution model of the responses to each depressive symptoms item in ageneral population. Cross-sectional study. BMJ OPEN.5, e008599, 2015.
15. Y. Kawasaki, A. Shimokawa, H. Yamada, E. Miyaoka. A Bayesian equivalency test for two independent binomial proportions. Journal of Biopharmaceutical Statistics. In press. 2015.
16. Y. Kawasaki, H. Yamada. Non-inferiority Test Statistics for Two Independent Binomial Proportions: Comparison of Eight Methods. Advances and Applications in Statistics. 46(3), 189-196, 2015.
17. Y. Kawasaki, H.Yamada. On Sample Size Determination Based on a Bayesian Index of Superiority for Two Independent Binomial Proportions. Journal of Modern Applied Statistical Methods. In press. 2015.
18. A. Shimokawa, Y. Kawasaki, E. Miyaoka. A comparative research on splitting criteria of survival tree based on Cox proportional model. Journal of Biopharmaceutical Statistics. In press. 2015.
19. Y. Kobayashi, M. Yoshioka, T. Inaba, T. Suzuki, M. Sakakima, K. Ide, Y. Kawasaki, H. Yamada, O. Kitamura, K. Yonemura. Pharmacist’s suggestions to avoid drug-drug interaction between calcium carbonate and gastric secretion inhibitor in chronic kidney disease. The Japanese Journal of Nephrology and Pharmacotherapy. 4(3), 31-38, 2015.
20. Y. Kawasaki, N. Tanaka, T. Kurosawa, R. Toyooka, M. Mieno, H. Otsu, J. Matsuoka.An introduction of biostatistical consulting operation procedure at National Center for Global Health and Medicine. Japanese Pharmacology and Therapeutics. 43(1), 85-93, 2015.
21. A. Shimokawa, Y. Kawasaki, E. Miyaoka. Comparison of splitting methods on survival tree. The International Journal of Biostatistics.11(1), 175-188, 2015.
22. S. Tomitaka, Y. Kawasaki, T. Furukawa. Right tail of the distribution of depressive symptoms is stable and follows an exponential curve during middle adulthood. Plos One. 10(1), e0114624. 2015.doi:10.1371/journal.pone.0114624
23. I. Sato, T. Shimbo.Y. Kawasaki, N. Masaki. Comparison of Peginterferon afla-2a and alfa-2b for treatment of patients with chronic hepatitis C: a retrospective study using the nationwide hepatitis database. Drug design, development and therapy. 9, 283-290, 2015.
24. I. Sato, T. Shimbo, Y. Kawasaki, M. Mizokami, N. Masaki. Efficacy and safety of interferon treatment for elderly patients with chronic hepatitis C in Japan: A retrospective study using the Japanese Interferon Database. Hepatology Research. 45(8), 829-836. 2015.
25. T. Nishijima, Y. Kawasaki, N. Tanaka, H. Gatanaga, S. Oka. Reply to ‘How does weight influence tenofovir disoproxil-fumarate induced renal function decline?’ AIDS. 29(5), 645-647, 2015.
26. Y. Nakagawa, Y. Shimada, E. Kinai,Y. Kawasaki, Y. Maruoka, K. Yamamoto, S. Oka. Long-handle toothbrush for haemophiliacs with severe elbow arthropathy. Haemophilia. 21(6), e481-483. 2015.
27. I. Sakakibara, E. Haramo, A. Muto, I. Miyajima, Y. Kawasaki. Comparison of Five Exact Confidence Intervals for the Independent Binomial Proportion. American Journal of Biostatistics. 4(1), 11-20,2014.
28. Y. Kawasaki, E. Haramo. Simple improved confidence intervals for comparing Binary matched-pair data. Far East Journal of Theoretical Statistics. 46(2), 137-146, 2014.
29. Y. Kawasaki. A new confidence interval for the difference between two independent binomial proportions. Advances and Applications in Statistics. 38(1), 71-80, 2014.
30. Y. Kawasaki, A. Shimokawa, E. Miyaoka. On the Bayesian index of superiority and the p-value of the Fisher exact test for binomial proportions. Journal of the Japan Statistical Society. 14(1), 73-81, 2014.
31. Y. Kawasaki. Three Bayesian test indexes for Normal Distributions, Journal of Mathematics and Statistics. 10(2), 244-256, 2014.
32. Y. Kawasaki. A Bayesian inferiority index for mean from Normal Distributions. JP Journal of Biostatistics. 11(1), 33-46, 2014.
33. Y. Kawasaki, E. Miyaoka. Comparison of Three Calculation Methods for a Bayesian Inference of Two Poisson Parameters. Journal of Modern Applied Statistical Methods. 13(1), 397-409, 2014.
34. A. Shimokawa, Y. Kawasaki, E. Miyaoka. An approach for constructing survival tree based on combination of covariates. SUT Journal of Mathematics. 50(2), 311-324. 2014.
35. A. Shimokawa, Y. Kawasaki, E. Miyaoka. CONSTRUCTION OF REGRESSION TREES ON INTERVAL-VALUED SYMBOLICVARIABLES. Journal of the Japanese Society of Computational Statistics. 27(1), 61-79. 2014.
36. N. Tanaka, Y. Kawasaki, T. Kurosawa, R. Toyooka, M. Mieno, H. Otsu. J. Matsuoka. A Survey on biostatistical consulting at Japanese medical institutes. Japanese Pharmacology and Therapeutics. 42(1), 33-44, 2014.
37. T. Nishijima, Y. Kawasaki,N. Tanaka, D. Mizushima, T. Aoki, K. Watanabe, E. Kinai, H. Honda, H. Yazaki, J. Tanuma, K. Tsukada, K. Teruya, Y. Kikuchi, H. Gatanaga, S.Oka. Long-term exposure to tenofovir continuously decrease renal function in HIV-1-infected patients with low body weight: results from 10 years of follow-up. AIDS. 28(19), 1903-1910, 2014.
38. Y. Kawasaki. Comparison of three calculation methods for a Bayesian non-inferiority test for two independent binomial proportions. JP Journal of Biostatistics. 10(2), 81-92, 2013.
39. Y. Kawasaki, E. Miyaoka. A Bayesian non-inferiority test for two independent binomial proportions. Pharmaceutical Statistics. 12(4), 201- 206, 2013.
40. Y. Kawasaki, A. Shimokawa, E. Miyaoka. Comparison of Three Calculation Methods for a Bayesian Inference of P(π1 > π2). Journal of Modern Applied Statistical Methods. 12(2), 256-268, 2013.
41. Y. Kawasaki, E. Miyaoka. A Bayesian inference of P (λ1 < λ2) for two Poisson parameters. Journal of applied statistics. 39(10), 2141- 2152, 2012.
42. Y. Kawasaki, E. Miyaoka. A Bayesian Inference of P(π1 > π2) for Two Proportions. Journal of Biopharmaceutical statistics. 22(3), 425-437, 2012.
43. Y. Kawasaki. Comparison of Exact Confidence Intervals for the Difference between Two Independent Binomial Proportions. Advances and Applications in Statistics. 15(2), 157-170, 2010.
44. Y. Kawasaki, E. Miyaoka. A Posterior Density for the Difference between Two Binomial Proportions and theHighest Posterior Density Credible Interval. Journal of the Japan Statistical Society. 40(2), 265-275, 2010.
45. Y. Kawasaki, E. Miyaoka. On Confidence Intervals for P(X < Y). Journal of the Japanese Society of Computational Statistics. 23(1), 1-12, 2010.
46. Y. Kawasaki, F. Zhang, E. Miyaoka. Comparisons of Test Statistics for Noninferiority Test for the Difference between Two Independent Binominal Proportions. American Journal of Biostatistics, 1(1), 23-31, 2010.