William Stringer

Learn More
As early as 1930 the first adverse health effects of vinyl chloride (VC) were reported.' Since then, numerous observations and studies have indicated a wide range of toxicity attributable to the effects of VC on the central nervous system, the liver, the bones of the fingers, and the Lately, the spectrum of known toxic effects of VC broadened to include(More)
In an evaluation of chronic occupational exposure to arsine (AsH3), an epidemiologic survey was conducted at a lead-acid battery manufacturing plant. Personal (breathing zone) air samples were obtained for the measurement of exposure to arsine and particulate arsenic (As), and area air samples were also collected for the determination of arsenic trioxide(More)
Although it has been estimated that over 600 000 workers in the United States are exposed to di(2-ethylhexyl)phthalate (DEHP), an animal carcinogen, and that over 100 000 are exposed to phthalic anhydride (PA), few data are available on levels of phthalates in biological fluids of these workers. For a determination of occupational exposure to PA and DEHP at(More)
Occupational and nonoccupational risk factors for bladder cancer were analyzed in a cohort of 1385 workers with known exposure to a potent bladder carcinogen, beta-naphthylamine. Bladder cancer was approximately seven times (95% confidence interval [CI] = 3.9, 12.4) more likely in exposed rather than nonexposed individuals, yet, otherwise, the groups were(More)
A marker for biological response to bladder carcinogen exposure was evaluated in a cross-sectional study of 504 workers at high risk due to a range of exposures to various carcinogenic aromatic amines, primarily 2-naphthylamine. A quantitative fluorescence cytology method using the DNA-binding dye, acridine orange, was employed to measure DNA in exfoliated(More)
Three sampling methods for airborne beryllium are compared to validate observations made in a 1973 National Institute for Occupational Safety and Health (NIOSH) industrywide study of the beryllium industry which indicated that, in general, the three methods yielded different results for samples taken in the same environment. Under NIOSH contract a beryllium(More)
Author Contributions:Dr Odutayo andMs Copsey had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. Concept and design:Odutayo, Cook, Hopewell, Altman. Acquisition, analysis, or interpretation of data:Odutayo, Copsey, Dutton, Hopewell, Altman. Drafting of the(More)
The availability and the choice of appropriate comparison groups are essential for valid occupational epidemiologic studies. Too often, however, adequate comparison groups cannot easily be found within a workplace environment or extracted from the general population. An evaluation of the efficacy of using a pool of comparison subjects from the health and(More)
  • 1