Sex-related analysis of serum antibody titers against soluble
amebic proteins (SAP) in individuals infected with
. Differences in titers of anti-amebic total immunoglobulin IgG (IgGt), IgG subclasses, and IgA between 38 ALA patients and 44 asymptomatic E. histolytica carriers (AC) were compared in males (A), and females (B). Differences in anti-amebic total immunoglobulin G (IgGt), IgG subclasses, and IgA titers between males and females were compared in ALA patients (C) and AC (D). Statistics: Mann–Whitney U test (*p < 0.05, **p < 0.005, and ***p < 0.0001). ALA: male n = 30, female n = 8; AC: male n = 16, female n = 28.