Dr. Aaron Field, an associate professor of neuro-radiology at the University of Wisconsin, said a “key factor” in the decision was a meta-analysis of the research published so far, including a recent study by a Zamboni ally at the University of Buffalo that made headlines by suggesting CCSVI was a result, not a cause, of MS. The analysis took into account factors such as the number of subjects in research studies, and whether they used proper blinds and control groups.
“Even when you took a very conservative approach to that meta-analysis, it still came out looking like there was an association there (between CCSVI and MS),” said Field, who, like Beaudet and Rubin, stressed there is still not enough evidence to suggest cause and effect.
Beaudet, who had the working group sign confidentiality agreements that resulted in all but Field and Rubin declining to speak to the media, said he could not go into too much detail about the meta-analysis because its authors are submitting it for publication and he did not want to scoop them.
I hope it's published soon, I want to read it!