The problem is, though, that for some years before now, international research has established the criteria for a Dx of Sjogrens. There would now have to be studies of this test compared on people already diagnosed, with a very high correlation between the "early test" and the standard research criteria for Sjogren's, before the new test would be very useful in many contexts.
Put another way, the new test would enable one to say -- what, "I have presumptive Sjogren's and I'm waiting until the other shoe drops? Until the research criteria are met?"
Once there's a very large body of evidence supporting the new test, and that it helps to establish the disabling impact of Sjogren's, it will be useful. If you need your local rheumy to believe that what you have is Sjogren's, it might help, and move you on to the International research criteria standard,
What is really needed is a fairly large study that adds this new test to a body of people who concurrently are going through all the steps of the International Research Criteria for a diagnosis of Sjogren's. It doesn't have to be another international study, but the number of participants should be sizable.
