Michael Daniels

Department Chair of Statistics and Data Sciences

A.B. magna cum laude Applied Mathematics, Brown University (1991)
Sc.D. Biostatistics, Harvard University (1995)

Research Summary:
My research focuses on Bayesian methods for Biostatistics. Current methodological problems including inference for incomplete (missing data), causal inference, and inference for dependence structures. Collaborative projects include determining mediation in behavioral studies, quantifying progression via imaging in DMD patients, and assess the impact of new Medicare rules on preventable hospital complications.

Daniels, M.J. and Hogan, J.W. (2008) Missing data in longitudinal studies: Strategies for Bayesian Modeling and Sensitivity Analysis. Chapman & Hall (CRC Press).

Book Chapters
Daniels M, Devlin B, Roeder K (1997) `Of Genes and IQ' in Intelligence, Genes, and
Success: Scientists respond to The Bell Curve", editors B Devlin, S Fienberg, D Resnick, and K Roeder, New York: Springer-Verlag.

Daniels, M.J. and Gaskins, J. (2012) 'Bayesian methods for the analysis of mixed categorical and continuous (incomplete) data' in Analysis of Mixed Data, editors K.C. Carriere and A. deLeon, Chapman & Hall (CRC Press).Michael J. Daniels 4

Published (Refereed)
Lenhard R, Daniels M, Oken M, Glick J, Ettinger D, Kalish L, O'Connell M (1994) An Aggressive High Dose Cyclophosphamide and Prednisone Regimen for Advanced Multiple Myeloma. Leukemia and Lymphoma. 13:485-489.

Devlin B, Daniels M, Roeder K. (1997) Heritability of IQ. Nature. 388:468-471.

Daniels M, Hughes M. (1997) Meta-Analysis for the evaluation of potential surrogate markers. Statistics in Medicine. 16:1965-1982.

Daniels M, Gatsonis C. (1997) Hierarchical Polytomous Regression Models with Applications to Health Services Research. Statistics in Medicine. 16:2311-2325.

Hughes MD, Daniels MJ, Fischl MA, Kim S, Schooley RT. (1998) CD4 cell count as a surrogate endpoint in HIV clinical trials: a meta-analysis of studies of the AIDS Clinical Trials Group. AIDS. 12:1823-1832.

Daniels M, Kass R. (1998) A note on rst stage approximation in two stage hierarchical models. Sankhya, Series B. 60:19-30.

Daniels M, Gatsonis C. (1999) Hierarchical Generalized Linear Models in the Analysis of Variations in Health Care Utilization. Journal of the American Statistical Association. 94:29-42.

Daniels M. (1999) A prior for the variance in hierarchical models. Canadian Journal of Statistics. 27:569-580.

Lay, D.C., Jr., M.F. Haussman, H.S. Buchanan, and M.J. Daniels. (1999) Danger to piglets due to crushing can be reduced by the use of a simulated udder. Journal of Animal Science. 77:2060-2064.

Cressie N, Kaiser M, Daniels M, Aldworth J, Lee J, Lahiri S, Cox L. (1999) Spatial analysis of particulate matter in an urban environment, In geoENV II - Geostatistics for Environmental Applications: Proceedings of the Second European Conference on Geostatistics for Environmental Applications, eds. J. Gomez-Hernandez, A. Soares, R. Froidevaux, 41-52.

Daniels M, Kass R. (1999) Nonconjugate Bayesian estimation of covariance matrices in hierarchical models. Journal of the American Statistical Association, 94, 1254-1263.

Lay D., Haussmann M, Daniels M. (2000) Hoop Housing for feeder pigs o ers a welfare friendly environment compared to a non-bedded system. Journal of Animal Welfare Science, 3:33-48.

Sidorenko, L.V., Li, X., Cocciolone, S.M., Chopra, S., Tagliani, L., Bowen, B., Daniels, M. and Peterson, T. (2000) Complex structure of a maize Myb gene promoter: functional analysis in transgenic plants. The Plant Journal, 22:1-14.Michael J. Daniels 5

Daniels M, Dominici F, Samet J., Zeger, S. (2000) Estimating particulate matter-mortality dose-response curves and threshold levels: An analysis of daily time series data for the 20 largest U.S. cities (with invited commentary). American Journal of Epidemiology, 152, 397-406.

Haussmann, M.F., Carroll, J.A., Weesner, G.D., Daniels, M.J., Matteri, and Lay, D.C. Jr. (2000) Administration of ACTH to restrained, pregnant sows alters their pigs hypothalamic-pituitary-adrenal (HPA) axis. Journal of Animal Science, 78:2399-2411.

HIV Surrogate Marker Collaborative Group (2000) Human Immunode ciency Virus Type I RNA Level and CD4 Count as Prognostic Markers and Surrogate Endpoints: A Meta-Analysis. AIDS Research and Human Retroviruses, 16, 1123-1133.

Daniels M, Hogan J. (2000) Reparameterizing the pattern mixture model for sensitivity analysis under informative dropout in longitudinal studies. Biometrics, 56, 1241-1249.

Daniels M, Cressie N. (2001) A hierarchical approach to covariance function estimation for time series. Journal of Time Series Analysis, 22, 253-266.

Daniels M, Lee Y-D, Kaiser M. (2001) Assessing sources of variability in measurement of ambient particulate matter. Environmetrics, 12, 547-558.

Hellmich, R.L., Siegfried, B.D., Sears, M.K., Stanley-Horn, D.E., Daniels, M.J., Mattila, H.R., Spencer, T., Bidne, K.G., and Lewis, L.C. (2001) Monarch larvae sensitivity to Bacillus thuringiensis - puri ed proteins and pollen. Proceedings of the National Academy of Sciences, 98: 11925-11930.

Carriquiry A., Daniels M. (2001) Adjusting for measurement error of a dietary risk factor in age-related maculopathy. Bayesian Methods with Applications to Science, Policy, and Ocial Statistics: Selected Papers from ISBA 2000: The Sixth World Meeting of the International Society for Bayesian Analysis.

Daniels M.J., Kass R.E. (2001) Shrinkage estimators for covariance matrices. Biometrics, 57:1173-1184.

Daniels, M.J., and Carriquiry, A.L. (2001) Computing the posterior distribution of individual level usual intakes with application to disease models. Research in Ocial Statistics, 4:67-79.

Hogan J, Daniels M. (2002) A hierarchical modelling approach to analysing longitudinal measurements with dropout and non compliance, with application to an equivalence trial in paediatric acquired immune de ciency syndrome. Applied Statistics (JRSS-C), 51:1-21.

Dominici, F., Daniels, M., Zeger S., Samet J. (2002) National models for estimating the e ect of particulate matter on mortality in U.S. cities. Journal of the American Statistical Association, 97:100-111.

Pourahmadi M, Daniels M. (2002) Dynamic conditionally linear mixed models. Biometrics, 58:225-231. PMID 11890319 Michael J. Daniels 6

Daniels, M. Pourahmadi, M. (2002) Bayesian analysis of covariance matrices and dynamic models for longitudinal data. Biometrika, 89, 553-566.

Kaiser, M., Daniels, M., Furakawa, K., Dixon, P. (2002) Analysis of particulate matter air pollution using markov random eld models of spatial dependence. Environmetrics, 13, 615-628.

Pogranichnyy, R.M., Yoon K-J., Harms, P.A., Sorden, S.D., Daniels M. (2002) Case-control study on association of porcine circovirus type 2 and other swine viruses in postweaning multisystemic wasting syndrome. Journal of Veterinary Diagnostic Laboratory Investigation, 14, 449-456.

Daniels, M. and Zhao, Y. (2003) Modelling the random e ects covariance matrix in longitudinal data. Statistics in Medicine, 22, 1631-1647.

Sidorenko, L, Bruce W., Maddock, S., Tagliani, L., Li, X., Daniels, M., Peterson, T. (2003) Functional analysis of two matrix attachment region (MAR) elements in transgenic maize plants. Transgenic Research, 12, 137-154.

Scharfstein D, Daniels M, Robins J. (2003) Incorporating prior beliefs about selection bias into the analysis of randomized trials with missing outcomes. Biostatistics, 4: 495-512. PMID 14557107

Daniels, M.J., Dominici, F., Zeger, S. (2004) Underestimation of standard errors in multi site time series studies. Epidemiology, 15: 57-62.

Daniels, M.J. (2005) Shrinkage priors for the dependence structure in longitudinal data. Journal of Statistical Planning and Inference, 127: 119-130.

Dominici F., McDermott A., Daniels, M., Zeger S.L, Samet J.M. (2005) Revised analyses of the National Morbidity, Mortality, and Air Pollution Study: mortality among resident of 90 cities. Journal of Toxicology and Environmental Health Part A., 68, 1071-1092.

Daniels, M., Normand, S-L.(2006) Longitudinal pro ling of health care units based on mixed multivariate patient outcomes. Biostatistics, 7, 1-15. PMID 15917373

Krieger, J.W., Sitren, H.S., Daniels, M.J., Landkamp-Henken, B. (2006) E ects of variation in protein and carbohydrate intake on body mass and composition during energy restriction: a meta-analysis. American Journal of Clinical Nutrition, 83: 260-274.

Daniels, M., Zhou, Z, and Zou, H. (2006) Conditionally speci ed space-time models for multivariate processes. Journal of Computational and Graphical Statistics, 15, 157-177.

Botts, C., Daniels, M. (2006) A shrinkage estimator for the spectral densities. Biometrika, 93, 179-195.

Daniels, M.J. (2006) Bayesian modelling of several covariance matrices and some results on the propriety of the posterior for linear regression with correlated and/or heterogeneous errors. Journal of Multivariate Analysis, 97, 1185-1207.Michael J. Daniels 7

Scharfstein, D.O., Halloran, M.E., Chu, H., and Daniels, M.J. (2006) On Estimation of Vaccine Ecacy Using Validation Samples with Selection Bias. Biostatistics, 7, 615-629. PMID 16556610

Liu, X. and Daniels, M.J. (2006) A new algorithm for simulating a correlation matrix based on parameter expansion and re-parameterization. Journal of Computational and Graphical Statistics, 15, 897-914.

Pourahmadi, M., Daniels M., Park, T. (2007) Simultaneuous modelling of covariance matrices using the modi ed Choleski decomposition with applications. Journal of Multivariate Analysis, 98, 568-587.

Ilk O., Daniels, M. (2007) Marginalized transition random e ects models for multivariate longitudinal binary data. Canadian Journal of Statistics, 35, 105-123.

Lee, K., Daniels, M.J. (2007) A class of Markov models for longitudinal ordinal data. Biometrics, 63, 1060-1067. PMID 18078479

Feezor, R.J., Martin, T.D., Hess, P.J., Daniels, M.J., Beaver, T.M., Klodell, C.T., and Lee, W.A. (2008) Extent of aortic coverage and incidence of spinal cord ischemia after thoracic endovascular aneurysm repair. Annals of Thoracic Surgery, 86, 1809-1814. PMID 19021982

Lay, D., Kattesh, H., Cunnick, J., Daniels, M.J., McMunn, K., Toscano, M. and Roberts, M. (2008) Prenatal stress on pig development and response to weaning. Journal of Animal Science, 86, 1316-1324.

Roy, J. and Daniels, M.J. (2008) A General Class of Pattern Mixture Models for Nonignorable Dropout with Many Possible Dropout Times. Biometrics, 64, 538-545. PMID 18613246

Lee, K. and Daniels, M.J. (2008) Marginalized models for longitudinal ordinal data with application to quality of life studies. Statistics in Medicine, 27, 4359-4380. PMID 21127724

Botts, C. and Daniels, M.J. (2008) A exible approach to Bayesian multiple curve tting. Computational Statistics and Data Analysis, 52, 5100-5120.

Perri, M.G., Limacher, M.C., Durning, P.E., Janicke, D.M., Lutes, L.D., Bobro , L.B., Dale, M.S., Daniels, M.J., Radcli , T.A., and Martin, A.D. (2008) Treatment of Obesity in Underserved Rural Settings (TOURS): A Randomized Trial of Extended-Care Programs for Weight Management in Women. Archives of Internal Medicine, 168, 2347-2354. PMID 19029500

Judge, M.K., Zhang, J., Tumer, N., Carter, C., Daniels, M.J., and Scarpace, P.J. (2008) Prolonged hyperphagia with HF feeding contributes to exacerbated weight gain in rats with adult-onset obesity. American Journal of Physiology - Regulatory, Integrative, and Comparative Physiology, 295, R773-R780.Michael J. Daniels 8 Martin, D.J., Martin, T.D., Hess, P.J., Daniels, M.J., Feezor, R.J., and Lee, W.A.L. (2009) Spinal Cord Ischemia after TEVAR in Patients with Abdominal Aortic Aneurysms.Journal of Vascular Surgery, 49, 302-306. PMID 19028067

Daniels, M.J. and Wang, C. (2009) Discussion of Missing Data in longitudinal studies: A review" by Ibrahim and Molenberghs. TEST, 18, 51-58.

Liu, X, Daniels, M., Marcus, B. (2009) Joint models for the association of a longitudinal binary and continuous process. Journal of the American Statistical Association, 104, 429-439.

Daniels, M.J. and Pourahmadi, M. (2009) Modeling covariance matrices using partial autocorrelations. Journal of Multivariate Analysis, 100, 2352-2363. PMID 20161018

Carter, C.S., Leeuwenburgh, C., Daniels, M.J., and Foster, T.C. (2009) In uence of calorie restriction on measures of age-related cognitive decline: Role of increased physical activity. Journal of Gerontology: Biological Sciences, 64, 850-859.

Lee, K., Daniels, M.J., and Sargent, D. (2010) Causal e ects of treatments for informative missing data due to progression/death. Journal of the American Statistical Association, 105, 912-929. PMID 21318119

Yang, Y., Halloran, M.E., Daniels, M.J., and Longini, I.M. (2010) Modeling competing infectious pathogens from a Bayesian perspective: Application to in uenza studies with incomplete laboratory results. Journal of the American Statistical Association, 105, 1310-1322.

Wang, C., Daniels, M.J., Scharfstein, D.O., and Land, S. (2010) A Bayesian Shrinkage Model for Incomplete Longitudinal Binary Data with Application to the Breast Cancer Prevention Trial. Journal of the American Statistical Association, 105, 1333-1346. PMID 21516191

Bruen, K.J., Feezor, R.J., Daniels, M.J., Beck, A.W., and Lee, W.A. (2011) Endovascular Chimney Technique versus Open Repair of Juxtarenal and Suprarenal Aneurysms. Journal of Vascular Surgery, 53, 895-905. PMID 21211934

Wang, W., Scharfstein, D., Wang, C., Daniels, M., Needham, D., and Brower, R. (2011) Estimating the Causal E ect of Low Tidal Volume Ventilation on Survival in Patients with Acute Lung Injury. Applied Statistics; JRSS-C, 60, 475{496. PMID 22025809

Carter, C.S., Giovaninni, S., Seo1, D., Dupree, J., Morgan, D., Chung, H.Y., Lees, H., Daniels, M.J., Hubbard, G.B., Lee, S., Ikeno, Y., Marzetti, E. (2010) Di erential e ects of enalapril and losartan on body composition and indices of muscle quality in aged male Fischer 344x Brown Norway rats. AGE (Journal of the American Aging
Association), 33, 167{183. PMID 21153712

Lay, D.C., Kattesh, H.G., Cunnick, J.E., Daniels, M.J., Kranendonk, G., McMunn, K.A., Toscano, M.J., and Roberts, M.P. (2011) E ect of prenatal stress on subsequent response to mixing stress and a lipopolysaccharide challenge in pigs. Journal of Animal Science, 89, 1787-1794.Michael J. Daniels 9

Anton, S.D., Manini, T., Milsom, V., Dubyak, P.J., Cesari, M., Cheng, J., Daniels, M.J., Marsiske, M., Pahor, M., Leeuwenburgh, C. and Perri, M.G. (2011) E ects of A Weight Loss Plus Exercise Program on Physical Functioning in Overweight, Older Women: A Randomized Controlled Trial. Clinical Interventions in Aging, 6, 141{149. PMID

Wohlgemuth, S.E., Lees, H.A., Marzetti, E., Manini, T.M., Aranda, J.M., Daniels, M.J., Pahor, M., Perri, M.G., Leeuwenburgh, C., Anton, S.D. (2011) An exploratory analysis of the e ects of a weight loss plus exercise program on cellular quality control mechanisms in older overweight women. Rejuvenation Research, 14, 315-324. PMID 21631380

Lee, W.A., Daniels, M.J., Beaver, T.M., Klodell, C.T., Raghinaru, D.E., and Martin, T.D. (2011) Late outcomes of single center experience of 400 consecutive TEVAR. Circulation, 123, 2938{U67.

Bobb, J.F., Scharfstein, D.O., Daniels, M.J., Collins, F.S., and Kelada, S. (2011) Multiple Imputation of Missing Phenotype Data for QTL Mapping. Statistical Applications in Genetic and Molecular Biology, 10, Article 29.

Wang, C. and Daniels, M.J. (2011) A note on MAR, identifying restrictions, model comparison, and sensitivity analysis in pattern mixture models with and without covariates for incomplete data. Biometrics, 67, 810-818. PMID 21361893

Bhadra, D., Daniels, M.J., Kim, S., Ghosh, M., and Mukherjee, B. (2012) A Bayesian semiparametric approach for incorporating longitudinal information on exposure history for inference in case-control studies. Biometrics, 68, 361-370.

Daniels, M.J., Chatterjee, A., and Wang, C. (2012) Bayesian model selection for incomplete data using the posterior predictive distribution. To appear in Biometrics. PMID 22551040

  • Member of Sigma Xi Scienti c Honor Society, 1991-1994
  • National Institutes of Health Training Grant Recipient, 1991-92
  • Generalized Linear Models Conference Travel Award, 1994
  • Howard Hughes Medical Institute Predoctoral Fellowship in Biological Sciences, 1992-1995
  • Eastern North American Region of Biometrics Society Student Travel Award, 1995
  • National Research Service Award in Psychiatric Statistics (NIMH), 1995-1997
  • Fellow of the American Statistical association (elected 2007)