Table 1.
Characteristics of the study population.
Table 2.
Distribution of blood counts and immune serology positivity by group.
Fig 1.
C3 and C4 distributions by group.
*One-way ANOVA test; C3: P = 0.009, C4: P = 0.32. Normal ranges: C3: 0.9–0.18 gr/L; C4: 0.1–0.4 gr/L.
Table 3.
Comparison of immunoglobulin and autoantibodies levels by group.
Fig 2.
Comparison of positive and negative “Immunodot” results (for combined anti-SSA/Ro antigens 52kD and 60kD and anti-SSB/La) with log transformed median fluorescence intensity (MFI) levels for three antigens by multiplex serology (P<0.001).
MFI = median fluorescence intensity.
Table 4.
Multinomial regression of autoantibody titer quartiles comparing SS and DES vs. controls using multiplex serology.
Table 5.
Performance characteristics of dichotomized multiplex serology vs. Immunodot assay and AECG classification.