Kismet (Anna) Cordova


Department of Statistics


Ms. Cordova contributes to the research mission of RERF through independent and collaborative research. Her independent research focuses on radiation dosimetry and statistical methodology, including quantification and accommodation of radiation dose error in DS02 and the application of causal inference methods to investigate potential mechanisms of radiation effects. She has broad experience in data analysis and contributes to multidisciplinary projects across RERF using epidemiological cohorts, clinical information, and molecular, genomic, and biological data, to study the effects of radiation, each requiring unique consideration of design, methodology, and analysis. She was lead statistician on studies related to radiation dosimetry and dose error, including comparisons of calculated DS02 doses with estimates from biological dosimeters such as stable chromosome aberrations and electron spin resonance of tooth enamel, as well as independent work assessing the relative biological effectiveness of neutrons. She is also developing expertise in the application of modeling techniques for large-scale, multi-stage data including structural regressions of longitudinal data (for both continuous and discrete outcomes), joint modeling, and other advanced statistical techniques.


M.P.H. (Applied Biostatistics and Bioinformatics) University of Colorado Denver, Colorado, USA
B.A. (Psychology) University of Colorado Boulder, Colorado, USA


Radiation Effects Research Foundation
  • 2015-Research Scientist, Department of Statistics
University of Colorado Boulder, Colorado, USA
  • 2011-2015Professional Research Assistant, Department of Psychology

Selected publications

Nakamizo T, Cologne JB, Cordova KA, Yamada M, Takahashi T, Misumi M, Fujiwara S, Matsumoto M, Kihara Y, Hida A, Ohishi W. Radiation effects on atherosclerosis in atomic bomb survivors: A cross-sectional study using structural equation modeling. European Journal of Epidemiology. 2021; 36(4):401-414.
Cordova KA , Cullings HM. Assessing the Relative Biological Effectiveness of Neutrons across Organs of Varying Depth among the Atomic Bomb Survivors. Radiation Research. 2019; 192(4), 380-387.
Hirai Y, Cordova KA, Kodama Y, Hamasaki K, Awa A. A., Tomonaga, M, et al. Tooth enamel ESR doses and cytogenetic doses of Nagasaki atomic-bomb survivors in comparison with DS02R1 doses. International Journal of Radiation Biology. 2019; 95(3), 321-328.
Hirai Y, Noda A, Kodama Y, Cordova KA, Cullings HM, Yonehara S, Fujihara M, Moriwaki S, Nishigori C, Mabuchi K, Kraemer KH, Nakamura N. Increased risk of skin cancer in Japanese heterozygotes of xeroderma pigmentosum group A. Journal of human genetics. 2018; 63(11), 1181-1184.
Nakamura N, Hirai Y, Kodama Y, Hamasaki K, Cullings HM, Cordova KA, Awa A. Cytogenetic reconstruction of gamma-ray doses delivered to atomic bomb survivors: Dealing with wide distributions of photon energies and contributions from hematopoietic stem/progenitor cells. Radiation Research. 2017; 188(4), 412-418.
Yoshida K, Cologne JB, Cordova KA, Misumi M, Yamaoka M, Kyoizumi S, Hayashi T, Robins H, Kusunoki Y. Aging-related changes in human T-cell repertoire over 20 years delineated by deep sequencing of peripheral T-cell receptors. Experimental Gerontology. 2017; 96, 29-37.
Milder CM, Sakata R, Sugiyama H, Sadakane A, Utada M, Cordova KA, Hida A, Ohishi W, Ozasa K, Grant EJ. Initial report for the Radiation Effects Research Foundation F1 Mail Survey. Asian Pacific Journal of Cancer Prevention. 2016; 17(3), 1313-1323.