Main Research Areas:

• Medical cost and other censored data (Biometrika 2000; Biometrics 2002; J Int Marketing 2005; Contemp Clin Trials 2005; Stat in Med 2007)


• Blinding and noncompliance in clinical trials (Controlled Clin Trials 2004, 2005; Stat in Med 2007. NOTE: Blinding Index is built in Stata)


• Multiple testing, Sample size calculation, Microarray (Biostatistics 2005; Science 2004; J Biopharm Stat 2005)


• Causal inference and nonrandomized treatment (Biometrics 2005; Stat in Med 2008)


• Biostatistics tutorial (Neuroepidemiology 2006)


• Disease prediction models (in kidney disease and diabetes, see below)


• HIV/AIDS and other infectious diseases (J of AIDS 2002; AIDS 2002; Biostatistics 2002; J Infect Dis 2007; Clin Infect Dis 2007)


• Cardiovascular disease (Circulation 2004; Am J Med 2005; Arch Int Med 2005; Am J Cardiology 2008; Ann Epi 2008)


• Diabetes (Diabetes 2004; Diabetes Care 2005; Diabetologia 2007)


• Kidney disease (Am J Kid Dis 2005; Arch Int Med 2007, 2008)


• Neurology (Stroke 2005; Neurology 2006, 2007; Atherosclerosis 2008)


• OB-GYN (JCEM 2006; Fertility and Sterility 2006; Oncologist 2007)


• Prevention science (Addictive Behaviors 2007; Prev Sci 2007)


• Meta-analysis (J Family Pract 2007; STD 2007)

Other professional activities:
1. Roundtable leader, Joint Statistical Metting 2007.

2. Invited session organizer, Joint Statistical Metting 2008.

3. Instructor, ‘Analysis of Censored Cost or Health Outcomes Data?, at ENAR 2008.

4. Instructor, ‘Analysis of Censored Health Outcomes Data: Developments for last 10 years,’ at JSM 2008.

5. Instructor, ‘Statistical Methods for Observational Studies,’ at Cornell 2007-;

6. Editor, ‘Statistical Methods in Molecular Biology: a Beginners' Guide’ (Humana Press, part of Springer, to be published in 2009).