Figure 4.

Changes in mean fluorescence intensity (MFI) values between the two visits for four autoantibodies in the Prog (progressor) and NProg (nonprogressor) patient groups. Two of these autoantibodies, La/SSB and LC-1, showed changes that were significantly related to progression status. The SSA/Ro 60 kD and SSA/SSB specificities showed marked changes in two of the three Prog patients. None of these four autoantibodies showed decreases in any of the Prog patients over the followup interval.