Fig. 3

Imunologic and hematologic distribution of patients with and without anti-SSA and anti-SSB antibody negativity. The uppermost and lowermost lines represent the maximum and minimum values of the data, respectively; the upper-line and lower-line of the boxplot represent the third and first quartiles, respectively; the thick line segment in the middle of the box plot represents the median of the data. IgG, immunoglobulin G; IgA, immunoglobulin A; IgM, immunoglobulin M; C3, complement 3; C4, complement 4