Table 2.

Antibodies for systemic sclerosis

	ACA	ARA	ATA	ANA+	ANA−
SSc‐PAH	7 (37%)	0	1 (5%)	11 (58%)	0
SSc	16 (42%)	4 (11%)	5 (13%)	10 (26%)	3 (8%)

Values expressed in absolute numbers and percentage in parenthesis. SSc‐PAH, systemic sclerosis with pulmonary arterial hypertension; SSc, systemic sclerosis without pulmonary arterial hypertension; ACA, anti centromere antibodies; ARA, anti RNA polymerase III antibodies; ATA, anti topoisomerase I antibodies (anti‐Scl‐70 antibodies); ANA, anti nuclear antibodies (without ACA, ARA or ATA). P = 0·1 between SSc‐PAH and SSc for all antibodies.