Dr. Warren Bilker is Professor of Biostatistics in the Department of Biostatistics and Epidemiology and the Department of Psychiatry and is a Senior Scholar in the CCEB. Dr. Bilker earned a BA is Mathematics (1982) and an MS in Statistics (1984) from Temple University. He received his PhD in Biostatistics from the Johns Hopkins University Bloomberg School of Public Health. He joined the faculty at the University of Pennsylvania in 1992 in the Department of Medicine as part of the Clinical Epidemiology Unit, prior to the creation of the Department of Biostatistics and Epidemiology and the CCEB. He moved to the Department of Biostatistics and Epidemiology when it was created in 1995. His primary research interests are pharmacoepidemiologic methods, psychiatric methodology, statistical methods for correlated correlations, survival analysis for censored and truncated data, and brain image analysis. Dr. Bilker is currently principal investigator of the biostatistics and data core for the Schizophrenia Center, which studies the neurobiology of stimulus encoding in schizophrenia. He has served on multiple FDA advisory panels and Data Safety Monitoring Committees for academia and industry. He is an associate editor for the journal Pharmacoepidemiology and Drug Safety. Dr. Bilker teaches a Fall course on Statistical Computing within the Biostatistics PhD program. Dr. Bilker's methodological research interests are in the areas of pharmacoepidemiology, survival analysis, psychiatric methods, and correlated data. His primary applied research interests are in schizophrenia and the analysis of pharmacoepidemiology data using large databases. He is the principal investigator of the biostatistics and data core of the Schizophrenia Center in the Department of Psychiatry, which has an emphasis on the study of the relationship between brain imaging findings and the clinical course of schizophrenia. Selected Publications: Roalf DR, Gur RE, Ruparel K, Calkins ME, Satterthwaite TD, Bilker WB, Hakonarson H, Harris LJ, Gur RC: Within-individual variability in neurocognitive performance: age and sex-related differences in children and youths from ages 8 to 21. Neuropsychology April 28, 2014 Notes: Epub ahead of print. Margolis J, Abuabara K, Bilker W, Hoffstad O, Margolis D: Persistence of mild to moderate atopic dermatitis JAMA Dermatology Apr 2, 2014 Notes: Epub ahead of print. Lewis JD, Habel L, Quesenberry C, Mamtani R, Peng T, Bilker WB, Hedderson M, Nessel L, Vaughn DJ, Strom BL, Ferrara A: Proteinuria testing among patients with diabetes mellitus is associated with bladder cancer diagnosis: potential for unmeasured confounding in studies of pioglitazone and bladder cancer. Pharmacoepidemiology and Drug Safety Apr 25, 2014 Notes: Epub ahead of print. Roalf DR, Ruparel K, Gur RE, Bilker W, Gerraty R, Elliott MA, Gallagher RS, Almasy L, Pogue-Geile MF, Prasad K, Wood J, Nimgaonkar V, Gur RC: Neuroimaging predictors of cognitive performance across a standardized neurocognitive battery. Neuropsychology 28(2): 161-176, Mar 2014. Azfar RS, Lee RA, Castelo-Soccio L, Greenberg MS, Bilker WB, Gelfand JM, Kovarik CL: Reliability and Validity of mobile teledermatology in HIV positive patients in Botswana. JAMA Dermatology March 12, 2014 Notes: Epub ahead of print. Bilker WB, Wierzbicki MR, Brensinger CM, Gur RE, Gur RC: Development of abbreviated eight-item form of the Penn verbal reasoning test. Assessment Feb 26, 2014 Notes: Epub ahead of print. Schelleman H, Han X, Brensinger CM, Quinney SK, Bilker WB, Flockhart DA, Li L, Hennessy S: Pharmacoepidemiologic and in vitro evaluation of potential drug-drug interactions of sulfonylureas with fibrates and statins British Journal of Clinical Pharmacology Feb 18, 2014 Notes: Epub ahead of print. Satterthwaite TD, Ruparel K, Wolf DH, andekar S, Roalf DR, Jackson C, Elliott MA, Bilker WB, Calkins ME, Prabhakaran K, Davatzikos C, Hakanarson H, Gur RE, Gur RC: Sex differences in the effect of puberty on hippocampal morphology. Journal of the American Academy of Child and Adolescent Psychiatry 53(3): 341-350, 2014.