Dr. Lung-Chang (JoJo) Chien

( University of Nevada, Las Vegas )

  • Institution:University of Nevada, Las Vegas
  • Departments: epidemiology and biostatistics
  • Research Fields: Spatial And Temporal Analysis, Environmental Health, Variable Dimension Reduction
  • Disciplines: Mathematics and Statistics, Statistics


In my academic career prior to 2023, I served as the committee chair for three master’s students and one doctoral student. The master’s students under my guidance were involved in projects focused on the application of the distributed nonlinear lag model in the context of environmental health. Meanwhile, the doctoral student I mentored conducted research on the impact of censored count data within the Poisson model, while also conducting a comparative analysis of various methods for addressing this issue.

As of 2023, I am currently advising one master’s student and one doctoral student. The master’s student is engaged in a study examining the serial mediation effects of COVID-19 vaccination within the framework of the social vulnerability index and COVID-19 prevalence. Additionally, the doctoral student, in collaboration with another esteemed nutrition professor, is conducting research to unravel the intricate relationships between dietary patterns, coronary artery calcification, pericardial adiposity, and the influence of physical activities on these associations.


Dr. Lung-Chang Chien is an Associate Professor of Biostatistics in the Department of Epidemiology and Biostatistics, School of Public Health. His research focuses on investigating spatial vulnerability and geographic disparities on human health. His research topics cover socioeconomic deprivation in cancer incidence and mortality, modifying effects of location in geo-survival analysis, the impact of Asian dust storms on children’s health, geographic disparities of asthma and diabetes, spatiotemporal impacts of meteorological factors on dengue fever, and high risk areas in elderly mortality due to heat waves. Dr. Chien has also collaborated on publications in Nursing research, global health, physical therapy, and nutrition.