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Mark Klapper wrote: > > My father spent over 20 years in textile manufacturing, supervising the operation of a facility where synthetic fabrics were bonded and dyed. The various processes involved strong chemicals - the one thing I remember most from visiting him at the office was the odor. I have suspected for some time that the exposure to these chemicals could be a factor in his PD. > > This weekend, I found out that the man who was his boss also has PD. >Both men are of similar age, ethnic and socio-economic background, and >worked in the same building. Considering that the rate of occurrence >of PD is about 15 cases per 100,000 population, I have a hard time >believing that this is sheer coincidence. A small sample, but an >interesting finding. But how many other workers were there in the plant, and how many of those were afflicted with PD.? Statistics may sometimes lead you astray, if you don't watch out for the curves! Michel Margosis