Daniel Oscar Stram

**Daniel Oscar Stram, PhD**, is a **Professor of Population and Public Health Sciences** at the **University of Southern California (USC)**, affiliated with the **Department of Preventive Medicine**. His research focuses on biostatistical methods in epidemiology, with emphasis on radiation epidemiology, nutritional epidemiology, and genetic risk assessment in cancer studies. He leads the statistical analysis of major prospective cohorts including the **Atomic Bomb Survivors Study**, **Multiethnic Cohort Study**, and **Children’s Health Study**.

**Research Interests**: His work addresses measurement error in dosimetry, dietary assessment, and haplotype-based genetic risk estimation. Key areas include radiation-induced cancer risks, environmental pollutants’ effects (e.g., air pollution, cadmium exposure), and genomic variation in candidate genes for cancer susceptibility.

**Publications**: Over 300 peer-reviewed articles, with recent focus on radiation dose effects on solid cancer mortality, air pollution’s role in COPD and breast cancer, and genetic associations with cadmium metabolism. His work bridges statistical methodology with public health impact, emphasizing translational research.

**Collaborations**: Active in multi-institutional projects like the **NCI’s Multiethnic Cohort Study**, **CTSI (Clinical and Translational Science Institute)**, and international radiation epidemiology initiatives. Develops innovative statistical tools for exposure assessment and risk modeling.