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Chathurangi
Pathiravasan

Assistant Scientist

Departmental Affiliations

Primary

Center & Institute Affiliations

Contact Info

Research Interests

  • Mobile Health
  • Longitudinal/ trajectory models. 
  • Computational Statistics and Machine Learning
Experiences & Accomplishments
Overview

I am an assistant scientist in the Department of Biostatistics at Johns Hopkins Bloomberg School of Public Health. My research interests focus on mobile health applications, longitudinal and group-based trajectory models, as well as big data and computational statistics. My primary effort involves providing statistical consultation at the Johns Hopkins Biostatistics Center, particularly on projects involving various biostatistical aspects including latent class analysis, survival analysis, and meta-analysis. I am serving as the primary lead statistician on several diverse projects and contribute to the development of successful grant applications for clinical trials and observational studies. Additionally, I enjoy teaching and mentoring students.

Prior to joining JHU, I conducted my postdoctoral research at Boston University School of Public Health. During this time, I worked on several projects within the Electronic Framingham Heart Study, which involved collecting data from a smartphone app paired with a wireless blood pressure device and smartwatch to monitor heart rates and step counts. My primary focus was investigating factors associated with long-term use of mobile and digital technologies and examining how these mobile and digital phenotypes relate to cardiovascular disease risk factors.

Honors & Awards
  • Outstanding achievement (Best Visualization) in the Data Challenge at the symposium on Data Science & Statistics (2019)
  • Dissertation Research Assistantship Award in Southern Illinois University, Carbondale,IL (2019)
  • John M. H. Olmsted Outstanding Master's Teaching Assistant Award for outstanding teaching Performances at Southern Illinois University, Carbondale, IL (2015)
Select Publications

 

 

  • Kishan A, Pearson ZC, Li SS, Pressman Z, Ahiarakwe U, Pathiravasan CH, Srikumaran U. How low can we go? A randomized controlled trial of low-quantity initial opioid prescriptions for shoulder surgery. J Shoulder Elbow Surg. 2024

  • Wang, X., Pathiravasan, C. H., Zhang, Y., Trinquart, L., Borrelli, B., Spartano, N. L., Lin, H., Nowak, C., Kheterpal, V., Benjamin, E. J., McManus, D. D., Murabito, J. M., & Liu, C. (2023). Association of Depressive Symptom Trajectory With Physical Activity Collected by mHealth Devices in the Electronic Framingham Heart Study: Cohort Study. JMIR mental health10, e44529. https://doi.org/10.2196/44529

  • Shapira-Daniels, A., Kornej, J., Spartano, N. L., Wang, X., Zhang, Y., Pathiravasan, C. H., Liu, C., Trinquart, L., Borrelli, B., McManus, D. D., Murabito, J. M., Benjamin, E. J., & Lin, H. (2023). Step Count, Self-reported Physical Activity, and Predicted 5-Year Risk of Atrial Fibrillation: Cross-sectional Analysis. Journal of medical Internet research25, e43123. https://doi.org/10.2196/43123

  • Pathiravasan, C. H., Zhang, Y., Wang, X., Trinquart, L., Benjamin, E. J., Borrelli, B., McManus, D. D., Kheterpal, V., Lin, H., Spartano, N. L., Schramm, E., Liu, C., & Murabito, J. M. (2022). Factors associated with long-term use of digital devices in the electronic Framingham Heart Study. NPJ digital medicine5(1), 195. https://doi.org/10.1038/s41746-022-00735-1

  • Pathiravasan, Chathurangi H., and Bhaskar Bhattacharya. "A Semiparametric Tilt Optimality Model." Stats 6.1 (2022): 1-16.

Projects
Self-Empowerment and Equity for Change (SEE Change): initiative to support empowerment research and programmatic tools in public health and economic development programs around the world
Resolve to Save Lives (RTSL), a Bloomberg Philanthropies-sponsored initiative to prevent cardiovascular disease through hypertension control, sodium reduction, and trans-fat elimination
Reducing risk of cerebellar mutism syndrome and neurocognitive sequelae
Longitudinal analysis of white matter structural integrity in pediatric brain tumor patients.
AIDS Linked to the IntraVenous Experience (ALIVE)
The Focus on Restaurant Engagement to Strengthen Health (FRESH) Trial: Study protocol to assess the feasibility of a restaurant-based food systems intervention