LYZ and latent syphilis: Pairwise comparison of mean (SD) difference of serum lysozyme level between AS and BD was −0.247 (1.033), between AS and presumed latent TB was −0.863 (1.085), between AS and presumed latent syphilis was 0.144 (2.020), between BD and presumed latent TB was −0.616 (1.124), between BD and presumed latent syphilis was 0.391 (2.031), and between presumed latent TB and presumed latent syphilis was 1.007 (2.047) (Table 5).