Abdelmonem A. Afifi, Ph.D.
Room 51-239C CHS
Department of Biostatistics
UCLA School of Public Health
Los Angeles, CA 90095-1772
(310) 825-0707 Fax: (310) 267-2113
afifi@ucla.edu
B.S. Mathematics (1959) Cairo University, Egypt
M.S. Statistics (1962) University of Chicago, Illinois
Ph.D. Statistics (1965) University of California, Berkeley
My methodological research centers largely around multivariate statistical data analysis. Much of my research effort was spent on studying the properties of various methods of handling missing observations in regression and discriminant analyses. Later, I did research on a number of other topics including variable selection in multivariate analysis and multiple confidence intervals in linear models and survival analysis. In health research, I concentrated in my early career on developing computer-based prognostic indices for critically-ill patients. I relied mostly on discriminant function analysis; that work was a forerunner of what was later to be called logistic regression. Other areas included psychology, clinical trials, and risk factors for lung and heart diseases. I also co-authored 2 books (with multiple editions) on multivariate analysis and a CD-ROM to serve as an electronic companion to Biostatistics. Recently, I have been interested in meta-analysis and in the health effects of electromagnetic fields. In addition to these, my current research areas include injury prevention, health services research, multi-level models, and risk factor analysis.
* Afifi, A.A. and Elashoff, R.M.: Missing observations in multivariate statistics I. Review of the literature. Journal of the American Statistical Association, 61:595-604, 1966.
* Afifi, A.A., and Elashoff, R.M.: Multivariate two sample tests with dichotomous and continuous variables I. The location model. Annals of Mathematical Statistics, 40(1):290-298, 1969.
* Afifi, A.A., Sacks, S.T., Liu, V.Y., Weil, M.H., and Shubin, H.: Accumulative prognostic index for patients with barbiturate, glutethimide and meprobamate intoxication, New England Journal of Medicine, 285(27):1497-1502, 1971.
* Afifi, A.A. and Kim, P.J.: Comparison of some two sample tests for non-normal alternates. Journal of the Royal Statistical Society, Series B, 34(2):448-52, 1972.
* Azen, S.P. and Afifi, A.A.: Asymptotic and small sample behavior of estimated Bayes rules for classifying time dependent observations. Biometrics 28:989-98, December 1972.
* Bendel, R.B. and Afifi, A.A.: “Comparison of Stopping Rules in Forward “Stepwise” Regression.” J. Am. Stat. Assoc. 72(357):46-53, March 1977.
* Madison, R.; Mittman, C.; Afifi, A.A.; and Zelman, R.: Risk factors for obstructive lung disease. American Review of Respiratory Disease 124:149-53, August 1981.
* Afifi, A.A., Elashoff, R.M., and Lee, J.J.: Simultaneous nonparametric confidence intervals for survival probabilities from censored data. Statistics in Medicine 5:653-62, 1986.
* Elashoff, R.M., Lee, J.K., and Afifi, A.A.: “Evaluation of exact and Asymptotic Internal Estimators in Logistic Analysis of Matched Case-Control Studies.”Biometrics, 47:1311-1325, 1991.
* Afifi, A.A., and Breslow, L.: “The Maturing Paradigm of Public Health.: Annual Reviews of Public Health , 15:223-35, 1994