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Issei Kurahashi

 

TwitterID:@isseing333

1983, Hiroshima, Japn


Recent Papers: http://www.researchgate.net/profile/Issei_Kurahashi



Areas of Focus:

  • Data Analysis, Predictive Modeling, Data Mining
  • cDNA Microarray, Clinical Trials, Medical Receipt, Electric Health Record, Marketing Data

 

Education:

Department of Epidemiology and Biostatistics. Univarsity of Tokyo

 

  • Ph. D., Biostatistics and Epidemiology, 2011
  • Master of Science, 2008
  • Bachelor of Science, 2006
    • 2006~2011: University of Tokyo scholarship recipient 

 

 

Software:

  • R, SAS, SPSS, Python, Visual C++, Ruby on Rails, SQL

 

 

Professional Experience:  

  • Chief Analytics Officer, iAnalysis LLC (2011-)
    • Analyzed web survey data for Daiko Inc., major Tokyo-based advertising agency, finding cause-effect relationships between survey responses and purchase trends.
  • Assistant Professer, Tokyo University Hospital (2011-)
    • Research for statistical analysis and data mining of electronic health records.
  • Founding Member, Capital Medica, Co. Ltd, (2010)
    • Core founding member for an independent business targeting companies seeking medical sector research.
    • Analyzed receipts for national health insurance, selling results to life insurance companies and pharmaceutical companies. 
  • Consultant for Doctors, Teikyo University, (2009-2010)
    • Provided consulting services related to writing medical papers, including statistical data analysis  (Internal Medicine, Surgical, ophthalmology)
  • Statistics Analyst, Statcom Co. Ltd, (2007, 2009)
    • Analyzed and wrote reports concerning childhood cancer clinical trials data (Research Protocol-based)
    • Conducted Quality of Life research concerning postoperative breast cancer patients for a Ritsumeikan University Professor.
  • Data Analyst, NPO Japan Clinical Research Support Unit (2005)
    • Analyzed data related to renal cancer research using SAS
    • Wrote report based on analysis of Japanese National Health Insurance medical receipts using R software 

 

 

Publications 

  1. Okazaki R, Sugimoto T, Kaji H, Fujii Y, Shiraki M, Inoue D, Endo I, Okano T, Hirota T, Kurahashi I and Matsumoto T. Vitamin D insufficiency defined by serum 25-hydroxyvitamin D and parathyroid hormone before and after oral vitamin D3 load in Japanese subjects. J Bone Miner Metab. 2010; 29:1 103-10.
  2. Ichikawa K, Konta T, Ikeda A, Fujimoto S, Iseki K, Moriyama T, Yamagata K, Tsuruya K, Yoshida H, Asahi K, Kurahashi I, Ohashi Y, Watanabe T. Significance of past history of renal failure for the detection of high-risk individuals for cardiovascular and end-stage renal disease: analysis of data from a nationwide health checkup. Clin Exp Nephrol. 2011;
  3. Yano Y, Fujimoto S, Sato Y, Konta T, Iseki K, Moriyama T, Yamagata K, Tsuruya K, Yoshida H, Asahi K, Kurahashi I, Ohashi Y, Watanabe T. Association between prehypertension and chronic kidney disease in the Japanese general population. Kidney Int. 2011;
  4. Iseki K, Asahi K, Moriyama T, Yamagata K, Tsuruya K, Yoshida H, Fujimoto S, Konta T, Kurahashi I, Ohashi Y, Watanabe T. Risk factor profiles based on estimated glomerular filtration rate and dipstick proteinuria among participants of the Specific Health Check and Guidance System in Japan 2008. Clin Exp Nephrol. 2011;
  5. Konta T, Ikeda A, Ichikawa K, Fujimoto S, Iseki K, Moriyama T, Yamagata K, Tsuruya K, Yoshida H, Asahi K, Kurahashi I, Ohashi Y, Watanabe T. Blood Pressure Control in a Japanese Population With Chronic Kidney Disease: A Baseline Survey of a Nationwide Cohort. Am J Hypertens.2011;
  6. Wakasugi M, Narita I, Iseki K, Moriyama T, Yamagata K, Tsuruya K, Yoshida H, Fujimoto S, Asahi K,Kurahashi I, Ohashi Y, Watanabe T. Weight gain after 20 years of age is associated with prevalence of chronic kidney disease. Clin Exp Nephrol. 2011;
  7. Yano Y, Sato Y, Fujimoto S, Konta T, Iseki K, Moriyama T, Yamagata K, Tsuruya K, Yoshida H, Asahi K, Kurahashi I, Ohashi Y, Watanabe T. Association of High Pulse Pressure With Proteinuria in Subjects With Diabetes, Prediabetes, or Normal Glucose Tolerance in a Large Japanese General Population Sample. Diabetes Care. 2012 Apr 3. [Epub ahead of print]
  8. Takaya Ikemoto, Issei Kurahashi, Pei-Jian Shi. Confidence interval of intrinsic optimum temperature estimated using thermodynamic SSI model. Insect ScienceArticle first published online: 20 JUN 2012.
  9. Sato Y, Yano Y, Fujimoto S, Konta T, Iseki K, Moriyama T, Yamagata K, Tsuruya K, Yoshida H, Asahi K, Kurahashi I, Ohashi Y, Watanabe T. Glycohemoglobin not as predictive as fasting glucose as a measure of prediabetes in predicting proteinuria. Nephrol Dial Transplant2012 Aug 1.
  10. Masanori Terashima, Koji Kitada, Atsushi Ochiai, Wataru Ichikawa, Issei Kurahashi, Shinichi Sakuramoto, Hitoshi Katai, Takeshi Sano, Hiroshi Imamura, and Mitsuru Sasako. Impact of Expression of Human Epidermal Growth Factor Receptors EGFR and ERBB2 on Survival in Stage II/III Gastric Cancer. Clinical Cancer Res. 2012 Online First.
  11. Iseki K, Iseki C, Kurahashi I, Watanabe T. Effect of glomerular filtration rate and proteinuria on medical cost among screened subjects. Clin Exp Nephrol. 2012 Nov 20.
  12. Koga I, Yoshino Y, Kitazawa T, Kurahashi I, Ota Y. Prevalence and risk factors for loss of bone mineral density in male Japanese patients with HIV. J Acquir Immune Defic Syndr
  13. Naoki Masuda, Issei Kurahashi, Hiroko Onari. Suicide ideation of individuals in online social networks. PLOS ONE. 
  14. Sato Y, Fujimoto S, Konta T, Iseki K, Moriyama T, Yamagata K, Tsuruya K, Yoshida H, Asahi K,Kurahashi I, Ohashi Y, Watanabe T. U-shaped association between body mass index and proteinuria in a large Japanese general population sample. Clin Exp Nephrol. 2013 May 8.
  15. Issei Kurahashi, Yoshihiko Fujita, Tokuzo Arao, Takayasu Kurata, Yasuhiro Koh, Kazuko Sakai, Koji Matsumoto, Maki Tanioka, Koji Takeda, Yuichi Takiguchi, Nobuyuki Yamamoto, Asuka Tsuya,Nobuaki Matsubara, Hirofumi Mukai, Hironobu Minami, Naoko Chayahara,  Yasuhiro Yamanaka,Keisuke Miwa, Shin Takahashi, Shunji Takahashi, Kazuhiko Nakagawa, Kazuto Nishio. A Microarray-Based Gene Expression Analysis to Identify Diagnostic Biomarkers for Unknown Primary Cancer. PLOS ONE
  16. Kawazoe Y, Miyo K, Kurahashi I, Sakurai R, Ohe K. Prediction-based threshold for medication alert. Stud Health Technol Inform. 2013;192:229-33.

 

Conferences 

  1. Shimozuma K, Shiroiwa T, Sagara Y, Tobata R, Ueo H, Kubota Y, Hori T, Amano K, Terada S, Mori M, Yajima T, Kurahashi I, Saito S, Hosaka T. Effects and Medical Costs of a Structured Psychosocial Group Intervention for Breast Cancer Patients after Surgery. ISPOR Annual European Congress. 2010.
  2. Terashima M, Ochiai A, Kitada K, Ichikawa W, Kurahashi I, Sakuramoto S, Fukagawa T, Sano T, Imamura H, and Sasako M. Impact of human epidermal growth factor receptor (EGFR) and ERBB2 (HER2) expressions on survival in patients with stage II/III gastric cancer, enrolled in the ACTS-GC study. ASCO. 2011.
  3. Mitsuru Sasako, Masanori Terashima, Wataru Ichikawa, Atsushi Ochiai, Koji Kitada, Issei Kurahashi, Shinichi Sakuramoto, Hitoshi Katai, Takeshi Sano and Hiroshi Imamura. Impact of the gene expressions of thymidylate synthase and dihydropyrimidine dehydrogenase on survival in patients enrolled in the ACTS-GC study. ASCO-GI. 2012.
  4. Koji Kitada, Atsushi Ochiai, Wataru Ichikawa, Masanori Terashima, Issei Kurahashi, Shinichi Sakuramoto, Hitoshi Katai, Takeshi Sano, Hiroshi Imamura and Mitsuru Sasako. Interaction between intratumoral ERCC1 expression and adjuvant treatment with S-1 on the survival of patients enrolled in the ACTS-GC study. ASCO-GI. 2012.
  5. Wataru Ichikawa, Masanori Terashima, Atsushi Ochiai, Koji Kitada, Issei Kurahashi, et. al. Impact of insulin-like growth factor 1 receptor (IGF1R) and amphiregulin (AREG) expressions on survival in patients with stage II/III gastric cancer enrolled in the ACTS-GC studyASCO. 2012.

 

Development Softwares

 

Statistical Blog