Ph.D., University of Washington, Biostatistics, 2002.
M.S., University of Washington, Biostatistics, 1999.
M.A., Washington University in St. Louis, Psychology, 1997.
B.S., Peking University, Psychology, 1992.
My research interests have been in the statistical methods for longitudinal data with time-to-event outcome, with a focus on using semi-parametric methods for estimating time-dependent ROC curves which are useful for evaluating the ability of longitudinal biomarkers or algorithms to identify cancer early, or signal disease prognosis. I am also interested in statistical methods for family-based genetic association studies. I am presently providing support to a number of research proposals and applications in the cancer prevention research program, including serving as an investigator in the DMCC of the Early Detection Research Network.
(Reading, Writing, Speaking)
Chinese, Mandarin: (Fluent, Fluent, Fluent)
English: (Fluent, Fluent, Fluent)
Honors and Awards
2006, Best Paper in Biometrics during 2004-2005, award selection by journal editors, International Biometeric Society
2003, Senior Biostatistics Student Award, University of Washington
1996, Division 20 'Completed Research Competition' Award, American Psychological Association
1994-1995, Merit Based Graduate Fellowship, Washington University
1989-1990, GuangHua Award for Academic Excellence, Peking University
2002-2008, Affiliate Assistant Professor, University of Washington, School of Public Health and Community Medicine, Biostatistics
2002-2007, Assistant Member, Fred Hutchinson Cancer Research Center, Public Health Sciences Division, Cancer Prevention Research Program
2000-2002, Dissertation Research, University of Washington, School of Public Health and Community Medicine, Biostatistics
1997-2002, Research Assistant, Group Health Cooperative, Center for Health Studies
1996-1997, Teaching Assistant, University of Washington, College of Arts and Sciences, Psychology
1995-1997, Research Assistant, University of Washington, Aging and Develpment Program, Psychology
Time to Colonoscopy after Positive Fecal Blood Test in Four U.S. Health Care Systems.. Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.. 2016.
Outcomes of active surveillance for the management of clinically localized prostate cancer in the prospective, multi-institutional Canary PASS cohort.. The Journal of urology. 195(2):313–320.. 2016.
Racial/Ethnic Disparities in Colorectal Cancer Screening Across Healthcare Systems.. American journal of preventive medicine.. 2016.
Promoting changes in obesogenic behaviors: does coworker social support play a role? American journal of health promotion : AJHP. 29(5):311-3.. 2015.
Two-stage biomarker panel study and estimation allowing early termination for futility.. Biostatistics (Oxford, England).. 2015.
Red blood cell folate and plasma folate are not associated with risk of incident colorectal cancer in the Women's Health Initiative observational study.. International journal of cancer. Journal international du cancer.. 2015.
Biomarkers of One-Carbon Metabolism Are Associated with Biomarkers of Inflammation in Women.. The Journal of nutrition. 144(5):714-21.. 2014.
Promoting Changes in Obesogenic Behaviors: Does Coworker Social Support Play a Role? American journal of health promotion : AJHP.. 2014.
The CRC screening process in community settings: A conceptual model for the Population-based Research Optimizing Screening through Personalized Regimens Consortium.. Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.. 2014.
Estimating Risk with Time-to-Event Data: An Application to the Women's Health Initiative.. Journal of the American Statistical Association. 109(506):514-524.. 2014.
Plasma choline metabolites and colorectal cancer risk in the Women's Health Initiative Observational Study.. Cancer research. 74(24):7442-52.. 2014.
Impact of folic acid fortification on global DNA methylation and one-carbon biomarkers in the Women's Health Initiative Observational Study cohort.. Epigenetics : official journal of the DNA Methylation Society. 9(3):396-403.. 2014.
Estimated intake of vitamin D and its interaction with vitamin A on lung cancer risk among smokers.. International journal of cancer. Journal international du cancer. 135(9):2135-45.. 2014.
Vitamin D Intake Determines Vitamin D Status of Postmenopausal Women, Particularly Those with Limited Sun Exposure.. The Journal of nutrition. 144(5):681-9.. 2014.
Adopting nested case-control quota sampling designs for the evaluation of risk markers.. Lifetime data analysis. 19(4):568-88.. 2013.
Vitamin D intake and lung cancer risk in the Women's Health Initiative.. The American journal of clinical nutrition. 98(4):1002-11.. 2013.
A unified mixed-effects model for rare-variant association in sequencing studies.. Genetic epidemiology. 37(4):334-44.. 2013.
Evaluating incremental values from new predictors with net reclassification improvement in survival analysis.. Lifetime data analysis. 19(3):350-70.. 2013.
Resampling Procedures for Making Inference under Nested Case-control Studies.. Journal of the American Statistical Association. 108(504):1532-1544.. 2013.