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Emory Rollins School of Public Health
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John  Hanfelt

Professor

Faculty, Biostatistics and Bioinformatics

My research interests include latent variable methods to gain insight into neurodegenerative diseases, robust methods for complex longitudinal and cluster-correlated studies, and the theory of estimating functions and artificial likelihood. I direct the biostatistics/epidemiology/research design program of the Georgia Clinical and Translational Science Alliance and co-direct the statistics/data management core of the Emory Goizueta Alzheimer's Disease Research Center.  I am a Fellow of the American Statistical Association.

Contact Information

Rollins School of Public Health , 1518 Clifton Road NE

Atlanta , GA 30322-4201

Phone: (404) 727-2876

Fax: (404) 727-1370

Email: jhanfel@emory.edu

URL:

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Areas of Interest

  • Biomarkers
  • Biostatistics
  • Longitudinal Analysis

Education

  • AB 1984, Harvard University
  • MS 1988, George Washington University
  • PhD 1994, Johns Hopkins University

Courses Taught

  • BIOS 735: Estimating Function Theory
  • BIOS 513: Statistical Inference I
  • BIOS 797R: Directed Study

Publications

  • , , An exploration of subgroups of neuropsychiatric symptoms in mild cognitive impairment and their risks of conversion to dementia or death, American Journal of Geriatric Psychiatry, (in press),
  • , , Scalable and robust latent trajectory class analysis using artificial likelihood, Biometrics, 77, 1118-1128
  • , , Latent classes of mild cognitive impairment are associated with clinical outcomes and neuropathology: Analysis of data from the National Alzheimer's Coordinating Center, Neurobiology of Disease, 117, 62-71
  • , , Simple relaxed conditional likelihood, Biometrika , 101, 726-732
  • , , An exploration of subgroups of mild cognitive impairment based on cognitive, neuropsychiatric and functional features: Analysis of data from the National Alzheimer's Coordinating Center, American Journal of Geriatric Psychiatry , 19, 940-950
  • , , Robust inference for sparse cluster-correlated count data., Journal of Multivariate Analysis, 102, 182-192
  • , , Testing for qualitative interaction of multiple sources of informative dropout in longitudinal data., Journal of Applied Statistics, 38, 1249 - 1264
  • , , A robust method for finely stratified familial studies with proband-based sampling., Biostatistics, 10, 364-373
  • , , Testing for the presence of multiple sources of informative dropout in longitudinal data. , Statistics in Medicine , 27, 4175-4189
  • , , Orthogonal locally ancillary estimating functions for matched pair studies and errors in covariates, Journal of the Royal Statistical Society, B, 69, 411-428
  • , , Composite conditional likelihood for sparse clustered data, Journal of the Royal Statistical Society, B, 66, 259-273
  • , , Adjusted profile estimating function, Biometrika, 90, 845-858
  • , , Conditioning to reduce the sensitivity of general estimating functions to nuisance parameters, Biometrika, 90, 517-531