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
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 513: Statistical Inference I
- BIOS 735: Estimating Function Theory
Publications
- Qiu J, Goldstein FC, Hanfelt JJ, 2021, 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),
- Hart KR, Fei T, Hanfelt JJ, 2021, Scalable and robust latent trajectory class analysis using artificial likelihood, Biometrics, 77, 1118-1128
- Hanfelt JJ, Peng L, Goldstein FC, Lah JJ., 2018, 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
- Hanfelt J, Wang L, 2014, Simple relaxed conditional likelihood, Biometrika , 101, 726-732
- Hanfelt JJ, Wuu J, Sollinger AB, Greenaway MC, Lah JJ, Levey AI, Goldstein FC, 2011, 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
- Hanfelt JJ, Li R, Pan Y, Payment P., 2011, Robust inference for sparse cluster-correlated count data., Journal of Multivariate Analysis, 102, 182-192
- Crawford SB, Hanfelt JJ., 2011, Testing for qualitative interaction of multiple sources of informative dropout in longitudinal data., Journal of Applied Statistics, 38, 1249 - 1264
- Wang M, Hanfelt JJ., 2009, A robust method for finely stratified familial studies with proband-based sampling., Biostatistics, 10, 364-373
- Crawford S, Hanfelt JJ , 2008, Testing for the presence of multiple sources of informative dropout in longitudinal data. , Statistics in Medicine , 27, 4175-4189
- Wang M, Hanfelt JJ., 2007, Orthogonal locally ancillary estimating functions for matched pair studies and errors in covariates, Journal of the Royal Statistical Society, B, 69, 411-428
- Hanfelt, JJ., 2004, Composite conditional likelihood for sparse clustered data, Journal of the Royal Statistical Society, B, 66, 259-273
- Wang M, Hanfelt JJ., 2003, Adjusted profile estimating function, Biometrika, 90, 845-858
- Hanfelt, JJ. , 2003, Conditioning to reduce the sensitivity of general estimating functions to nuisance parameters, Biometrika, 90, 517-531