When subjects with borderline findings were included, it turned out that 56% of MS patients and 22% of healthy comparisons had the vein
problem. When the borderlines were excluded, 62.5% of multiple sclerosis
sufferers and 26% of healthy people tested positive for the condition.
The fact that so many more MS patients had the condition is a significant finding, said Dr. Zivadinov. He also noted, however, that the vein narrowing was more common in people at more advanced stages of the disease.