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Multiple Sclerosis Is Increasingly Becoming A Woman's Disease: Why?

Date:
April 29, 2007
Source:
American Academy of Neurology
Summary:
Over time, more women are developing multiple sclerosis (MS) than men, according to new research. In 1940, the ratio of women to men with MS in the United States was approximately two to one. By 2000, that ratio had grown to approximately four to one.

Over time, more women are developing multiple sclerosis (MS) than men, according to research that will be presented at the American Academy of Neurology's 59th Annual Meeting. In 1940, the ratio of women to men with MS in the United States was approximately two to one. By 2000, that ratio had grown to approximately four to one.

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"That's an increase in the ratio of women to men of nearly 50 percent per decade," said study author Gary Cutter, PhD, of the University of Alabama at Birmingham School of Public Health. "We don't yet know why more women are developing MS than men, and more research is needed."

Cutter said researchers will need to explore multiple changes that have occurred for women over the last several decades, including the use of oral contraceptives, earlier menstruation, obesity rates, changes in smoking rates, and later age of first births.

"We also need to ask the general questions about what women do differently than men, such as use of hair dye and use of cosmetics that may block vitamin D absorption," he said. "At this point we're just speculating on avenues of research that could be pursued."

Cutter said the largest increase in the ratio has been for those whose MS started at younger ages.

For the study, researchers examined a database (the North American Research Committee On Multiple Sclerosis, or NARCOMS, hosted at Barrow Neurological Institute in Phoenix, Ariz.) of 30,336 people with MS and determined the male/female ratio according to the year the disease was diagnosed and the age of the person when the disease started.

The study was supported by the Consortium of Multiple Sclerosis Centers.


Story Source:

The above story is based on materials provided by American Academy of Neurology. Note: Materials may be edited for content and length.


Cite This Page:

American Academy of Neurology. "Multiple Sclerosis Is Increasingly Becoming A Woman's Disease: Why?." ScienceDaily. ScienceDaily, 29 April 2007. <www.sciencedaily.com/releases/2007/04/070427072325.htm>.
American Academy of Neurology. (2007, April 29). Multiple Sclerosis Is Increasingly Becoming A Woman's Disease: Why?. ScienceDaily. Retrieved December 19, 2014 from www.sciencedaily.com/releases/2007/04/070427072325.htm
American Academy of Neurology. "Multiple Sclerosis Is Increasingly Becoming A Woman's Disease: Why?." ScienceDaily. www.sciencedaily.com/releases/2007/04/070427072325.htm (accessed December 19, 2014).

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