Table 3. Differentiation of SSc subsets and clinical outcomes with specific HLA-DPB1 alleles.

Alleles	N (%)	N (%)	p	OR (95% CI)
Heterozygous
	ACA (+)	ACA (−)
DPB1*04	13 (34.2)	36 (15.4)	0.0051	2.86 (1.25–6.49)
DPB1*04:01	9 (23.7)	25 (10.7)	0.025	2.59 (1.01–6.55)
DPB1*04:02	4 (10.5)	11 (4.7)	0.15	2.39 (0.6–8.76)
	PF (+)	PF (−)
DPB1*03:01	39 (19.6)	5 (6.4)	0.0069	3.56 (1.27–10.73)
Homozygous
	ACA (+)	ACA (−)
DPB1*05:01	3 (7.9)	54 (23.1)	0.033	0.29 (0.07–1.02)

Notes: DPB1*04 only occurred in heterozygotes, heterozygous DPB1*05:01 did not show any association with SSc subsets.