From the Center for Occupational Biostatistics and Epidemiology (Drs Marsh, Buchanich, and Youk, and Ms Downing), Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Penn; Division of Environmental and Occupational Health Sciences (Dr Esmen, Ms Kennedy, and Mr Hancock), School of Public Health, University of Illinois at Chicago; Department of Public Health (Dr Lacey), School of Medicine, Indiana University, Indianapolis; formerly with the Division of Environmental Epidemiology and Occupational Health (Dr Fleissner), Connecticut Department of Public Health, Hartford; and Neuro-Oncology Program (Dr Lieberman), University of Pittsburgh Cancer Institute, University of Pittsburgh School of Medicine, Pittsburgh, Penn.
Address correspondence to: Gary M. Marsh, PhD, Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA 15261 (firstname.lastname@example.org).
The University of Pittsburgh and University of Illinois at Chicago received funding from Pratt & Whitney for this research, but the design, conduct, analysis, and conclusions are those of the authors. No conflicts of interest declared for M.L. Fleissner.