The goal of this project is to develop improved statistical methods for the analysis of data from human studies. In disease screening studies, it is difficult to obtain direct information on the age at onset of disease, the timing of past exposures, and the rate of disease progression. Work has progressed in the development of methods for disease screening studies, motivated by the NIEHS uterine fibroid (leiomyoma) study conducted by Donna Baird. We developed a method for estimating age-specific cumulative incidence using data on current status of disease at a single screening examination along with each individual's clinical history. Based on applying our method, African American women appear to have significantly higher rates of uterine leiomyoma than White women. We also developed a Bayesian approach that incorporates current disease severity information in estimating incidence and rates of disease progression. Based on this approach, we found African American woman to have not only higher incidence rates but also higher rates of progression of leiomyoma. Finally, we developed a general model for assessing beneficial effects of time-dependent covariates on delaying disease onset and curing preexisting disease. This model was motivated by tumor biology, and was applied to assess the effects of childbirth on uterine leiomyoma.

Agency
National Institute of Health (NIH)
Institute
National Institute of Environmental Health Sciences (NIEHS)
Type
Intramural Research (Z01)
Project #
1Z01ES040013-01
Application #
6534996
Study Section
(BB)
Project Start
Project End
Budget Start
Budget End
Support Year
1
Fiscal Year
2001
Total Cost
Indirect Cost
Name
U.S. National Inst of Environ Hlth Scis
Department
Type
DUNS #
City
State
Country
United States
Zip Code
Dunson, David B; Park, Ju-Hyun (2008) Kernel stick-breaking processes. Biometrika 95:307-323
Pennell, Michael L; Dunson, David B (2007) Fitting semiparametric random effects models to large data sets. Biostatistics 8:821-34
Kinney, Satkartar K; Dunson, David B (2007) Fixed and random effects selection in linear and logistic models. Biometrics 63:690-8
Dunson, David B (2007) Bayesian methods for latent trait modelling of longitudinal data. Stat Methods Med Res 16:399-415
MacLehose, Richard F; Dunson, David B; Herring, Amy H et al. (2007) Bayesian methods for highly correlated exposure data. Epidemiology 18:199-207
Dunson, David B (2006) Bayesian dynamic modeling of latent trait distributions. Biostatistics 7:551-68
Baird, Donna D; Kesner, James S; Dunson, David B (2006) Luteinizing hormone in premenopausal women may stimulate uterine leiomyomata development. J Soc Gynecol Investig 13:130-5
Longnecker, Matthew P; Klebanoff, Mark A; Dunson, David B et al. (2005) Maternal serum level of the DDT metabolite DDE in relation to fetal loss in previous pregnancies. Environ Res 97:127-33
Dunson, David B; Herring, Amy H (2005) Bayesian model selection and averaging in additive and proportional hazards models. Lifetime Data Anal 11:213-32
Dunson, David B; Herring, Amy H (2005) Bayesian latent variable models for mixed discrete outcomes. Biostatistics 6:11-25

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