Dr. B. Rey de Castro is an environmental health researcher and Westat Senior Environmental Statistician with 20 years of experience in biostatistics, environmental epidemiology, exposure assessment, toxicology, and policy. At Westat, Dr. de Castro utilizes his considerable background in biostatistical and epidemiologic analysis in a variety of studies to elucidate the health consequences of pollutant exposures. Before joining the Westat staff, his research focused on combining environmental sampling with microarray assays of gene expression induced by airborne particulate matter in order to understand its toxicity. Dr. de Castro also has a strong background in environmental policy implications from his earlier work as a legislative and regulatory representative for environmental interests.
Jan 2008 - Present
Senior Environmental Statistician
Jan 2007 - Dec 2007
Dec 2003 - Jan 2007
Faculty Research Associate
Johns Hopkins University, Bloomberg School of Public Health
Faculty appointment in Department of Environmental Health Sciences. Areas of experience: cell culture and gene expression analysis in human small-airway epithelial cells; environmental sampling of particulate matter in outdoor urban and indoor office contexts; time series analysis, generalized linear and additive modeling; longitudinal analysis; mixed effect models; and GEE estimation.