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Jun-mo Nam
Math Statistician
Location: Executive Plaza South, Room 8028
Phone: 301-496-3232
Fax: 301-402-0081
Email: JN26R@NIH.GOV
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Biography
Mr. Nam received a M.S. in mathematical statistics from the University
of Washington in 1966. He served as a research associate at School of
Medicine, University of Washington. In 1969, he joined the NCI as a mathematical
statistician. He is a recipient of US Public Health Service Special Achievement
Award, 1979, and a Sustained Superior Performance award, 1999.
Current Research
Statistical Methods;
1) Interval estimation of a difference between two marginal probabilities
in matched samples. 2) Statistical methods for assessing a reliability
of ratings using kappa agreement in multiple studies. 3) Simultaneous
testing both the sensitivity and the specificity in a diagnostic study.
4) Establishing equivalence of two treatments in survival with censoring
and sample size determination.
Collaborations;
HLA allele distributions by major races in US based on molecular typing.
Maternal hormone levels and cryptochism in sons. Individual worker's exposure
level related to an area exposure measurement.
Keywords
Equivalence test, HLA allele frequency, kappa agreement, matched samples,
sensitivity test, sample size determination.
Selected Publications
- Nam J. Sample size determination for designing a strata-matched case-control
study to detect multiple risk factors. Biometrical J 1997;39:441-54.
- Nam J. Testing genetic equilibrium across strata. Ann Hum Genet 1997;61:163-70.
- Nam J. Establishing equivalence of two treatments and sample size
requirements in matched-pairs design. Biometrics 1997;53:1422-30.
- VanRaden MJ, Blackwelder WC, VanSant FD, Shrager RI, Nam J. Paired
dichotomous data: test and confidence interval for ratio of marginal
proportions. Proceedings of the Biometrics Section, American Statistical
Association, Alexandria, VA. 1997, 22-24.
- Nam J. Power and sample size for stratified prospective studies using
the score method for testing relative risk. Biometrics 1998;54:331-6.
- Manns A, Hanchard B, Morgan O, Wilks R, Cranston B, Nam J, Blank
M, Kuwayama M, Yashiki S, Fujiyoshi T, Blattner W, Sonoda S: HLA class
II alleles associated with HTLV-I infection and adult T-cell leukemia/lymphoma
in a black population. J Natl Cancer Inst 1998;90:617-22.
- Nam J. Power and sample size for testing homogeneity of relative
risks in prospective studies. Biometrics 1999;55:289-93.
- Lekstrom-Himes JA, Hohman P, Warren T, Wald A, Nam J, Simonis T,
Corey L, Strauss SE. Association of major histocompatibility complex
determinants with the development of symptomatic and asymptomatic genital
herpes simplex virus type 2 infections. J Infect Dis1999;179:1077-1085.
- Nam J. Significance testing to establish equivalence between two
treatments in matched pairs design. Proc. 1999 World Congress of Korean
Scientists and Engineers: Mathematics and Statistics. Seoul 1999,97-104.
- Nam J. Interval estimation of the Kappa coefficient with binary classification
and an equal marginal probability model. Biometrics 2000;56:583-585.
- Prince JR, Stewart PA, Nam J, Kross B, Blair A. A pilot study to
rate determinants of exposure from videotaped work activities of farmers'
use of pesticides. Applied Occupational and Environmental Hygine 2001;16:973-978.
- Nam J, Blackwelder WC. Analysis of the ratio of marginal probabilities
in a matched- pairs setting. Stat Med 2002;21:689-700.
- Nam J. Testing the intraclass version of kappa coefficient of agreement
with binary scale and sample size determination. Biometrical Journal
2002;44:558-570.
- Sauntharerejah Y, Nakamura R, Nam J, Robyn J, Loberiza F, Maciejewski
JP, Simonis T, Molldrem J, Young NS, Barrett AJ. HLA DR15(DR2) is over-represented
in myelodysplastic Syndrome and aplastic anemia, and predicts a response
to immunosuppression in myelodysplastic syndrome. Blood (In Press).
- Nam J. Inference on intraclass version of kappa agreement. Proc.
US Korea Conference- 2002, Statistics. Seoul 2002 (In Press).
- Nam J, Kim J, Lee S. Equivalence of two treatments and sample size
determination under an exponential survival model with censoring (Submitted
Biometrical Journal).
- Nam J. Homogeneity score test for the intraclass version of the Kappa
statistics and sample size determination in multiple or stratified studies
(Submitted to Biometrics).
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