PRTN3 and pemphigus foliaceus: The number of ACPA specificities was also related to PF development (P < 0.05 crude and adjusted models). In multiple variable models respectively adjusted for each of the SNPs, the number of ACPA specificities (P < 0.05 in all models), anti-Vim60–75 (P < 0.05, in all models), anti-Fibβ62–78 (72) (P < 0.001 to P < 0.05), anti-CII359–369 (P < 0.05 in all models) and anti-F4-CIT-R AQ4 (P < 0.01 to P < 0.05), anti-Fibα621–635 (P < 0.05 in one) and anti-Bla26 (P < 0.05 in two) were significantly associated with PF development.