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Household Pets Among Veterans With Multiple Sclerosis and Age-Matched ControlsPilot Survey
James E. Norman, Jr, PhD;
Stuart D. Cook, MD;
Peter C. Dowling, MD
Arch Neurol. 1983;40(4):213-214.
Abstract
A pilot study was carried out among 22 Vietnam-era male US veterans with multiple sclerosis (MS) and 55 age- and sex-matched controls for prior exposure to dogs, cats, and animals with a distemperlike illness. No difference in dog ownership, or sick animals, and subsequent human illness was found in the group with MS or the control group. However, the distribution of dogs by indoor-outdoor status, as reported by patients with MS or controls, showed significant variation by tier of residence. Indoor dogs were more common in northern than southern latitudes, and this may be an important finding in light of the variation in the risk of MS with latitude.
Author Affiliations
From the Medical Follow-up Agency, National Academy of Sciences-National Research Council, Washington, DC (Dr Norman); the Neurology Service, Veterans Administration Medical Center, East Orange, NJ (Drs Cook and Dowling); and the Department of Neurosciences, University of Medicine and Dentistry, New Jersey Medical School, Newark (Drs Cook and Dowling).
Footnotes
Accepted for publication June 19, 1982.
Reprint requests to Medical Follow-up Agency, National Academy of Sciences-National Research Council, 2101 Constitution Ave, Washington, DC 20418 (Dr Norman).
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