Publications by authors named "JR Bagby"

Positive results of pilot studies of the effect of staphylococcus toxoid vaccine in patients with fibromyalgia and chronic fatigue syndrome were the incitement to the present, placebo-controlled study. It included 28 patients who fulfilled the criteria for both fibromyalgia and chronic fatigue syndrome. The effect of vaccination with a staphylococcus toxoid was compared with the effect of injections of sterile water.

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A protocol was developed in 1984 by the Missouri Department of Health to provide a systematic method for responding to citizen reports of cancer clusters. This protocol integrates public health and environmental expertise and includes two stages: the preliminary review and the investigation. The preliminary review is focused on problem definition and hypothesis generation.

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Sources of readily available data for cancer surveillance are frequently sought. To assess the validity of information on cancer risk factors that is routinely collected in conjunction with cancer incidence reporting, the authors completed interviews for 441 patients identified through the Missouri Cancer Registry from June 1986 to May 1987. Interviews elicited information on employment history, smoking, and alcohol consumption.

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An acute epidemic of headache, mucosal irritation, fatigue, odd taste, and dizziness involving several hundred state government employees occurred in June 1986 in an office building in Missouri that housed 2,500 employees. A survey of 305 ill and 131 well employees demonstrated that ill employees were more likely to have perceived unusual odors and inadequate air flow in their work areas. The building has eight floors, seven of which are divided in half by an atrium, and 17 separate air handling systems.

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The human health effects of long-term exposure to low levels of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) have not been well established. The results of a prior study showed that persons exposed to TCDD had depressed cell-mediated immunity, and 18 of 51 persons had anergy or relative anergy on skin testing. This paper presents the results of a medical follow-up on participants who were reported to be anergic or relatively anergic in the earlier study.

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Previous studies have suggested that certain occupational groups may be at increased risk for prostate cancer. A cancer registry-based case-control study was conducted to investigate possible associations between various occupations and the risk of prostate cancer among 1,239 case subjects and 3,717 age-matched control subjects. Elevated relative risk estimates were observed for farmers, mechanics, sheet metal workers, separating machine operators, and for men employed in several manufacturing industries.

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The compound 2,3,7,8-tetrachlorodibenzo-p-dioxin, commonly known as dioxin, was measured in the adipose tissue of 39 persons with a history of residential, recreational, or occupational exposure in Missouri and in 57 persons in a control group. All participants had detectable levels of 2,3,7,8-tetrachlorodibenzo-p-dioxin in their adipose tissue, but the exposed group had significantly higher levels. Levels of six of the exposed persons were more than five times greater than the level of the highest control.

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