Masako Nishikawa, PhD.
Chief, Statistical Modeling Section, Department of Technology Assessment and Biostatistics, National Institute of Public Health.
Research Interests:
Statistical Methods for Medical Research, Clinical Trials - Design and Statistical Analysis, Data analysis, Pharmacokinetics.
Selected Publications:
Nishikawa M, Tango T. Ohtaki M. Statistical tests based on new composite hypotheses in clinical trials reflecting the relative clinical importance of multiple endpoints quantitatively. Biometrical Journal 2009G51:749-762.
Nishikawa M. Competing risks model in the analysis of survival data. Japanese Journal of Biometrics 2008; 29:141-170.
Nishikawa, M., Tango, T., Ogawa, M. Non-parametric inference of adverse events under informative censoring. Statistics in Medicine 2006;25,3981-4003.
Nishikawa M, Tango T. Letter to the editor - Testing treatment effects in the presence of competing risks. Statistics in Medicine 2006; 25: 3758-3760.
Nishikawa, M. and Tango, T. Counter-intuitive Properties of the Kaplan-Meier Estimator. Statistics and Probability Letter 2003; 65:353-361.
Nishikawa, M. and Tango, T. Behavior of the Kaplan-Meier estimator for deterministic imputations to interval-censored data and the Turnbull estimator. Japanese Journal of Biometrics 2003; 24(2):71-94.
Nishikawa, M. Recent trend in Medical statistics. Medical Care and Computer 2001; 12: 8-16 (in Japanese).
Urae, A., Okada, M. Kimura, R., Matsukuma, K., Furuya, H., Tsukikawa, H., Nitta, Y., Nishikawa, M., and Irie, S. A clinical pharmacology study of drug interaction of fexofenadine and erythromycin in healthy male volunteers |Influence of concomitant use of fexofenadine and erythromycin on Pharmacokinetics and cardiogram. Clinical Pharmacology and Therapeutics 2000; 31(5): 639-648 (in Japanese).
Urae, A., Okada, M. Irie, S. Tanaka, T., Kadonami, Y., Habu, S., Matsukuma, K., Furuya, H., Tsukikawa, H., Nitta, Y., Nishikawa, M., and Nakano, S. Influence of fexofenadine on impaired performance in healthy volunteers - Based on performance of input to word processor. Clinical Pharmacology and Therapeutics 2000; 31(5): 649-658 (in Japanese).