I wonder if he means you are "anti-ccp" negative? The anti-ccp test wasn't around when I was diagnosed but my understanding is that it is a more specific blood test indicator than the rheumatoid factor test. Not really sure but maybe it is possible to be RF positive but anti-ccp negative which could perhaps be a better indicator than RF of the potential aggressiveness of the disease. Not sure if that makes sense but just a thought.
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