Department of Statistics
E-mail: misumi@rerf.or.jp

Dr. Misumi’s current interests are in research related to evaluating and correcting the impact of dosimetric uncertainty on radiation risk estimates obtained from the major RERF cohorts. He has authored and co-authored scientific papers related to dose uncertainty and missing data in the atomic bomb survivors studies and is actively involved in various research projects on these topics. He previously extended a simulation-extrapolation (SIMEX) for application to the conventional grouped-data analysis of radiation epidemiology and published the result with a comprehensive review of methods proposed for dosimetric uncertainty of RERF data. Under a research grant from the Japanese Ministry of Education, Culture, Sports, Sciences and Technology, he conducted studies on the impact of dosimetric uncertainty on the shape of the radiation dose-response curve at low doses. An additional area of interest are problems related to subjects’ dropout and missing data, not only the measurement errors of observed covariates, and issues related to the outcome-dependent observational times and competing risks, where he is working on statistical methods for studies to investigate mechanisms of exposure-related diseases that take into account such issues due to the characteristics of longitudinal studies.

2011

Ph.D., Nagasaki University, Nagasaki, Japan

2007

Master of Statistics (with Biomedical concentration), North Carolina State University, Raleigh, NC, USA