Table 4.

Demographic and clinical characteristics of patients dichotomized based on CCL-18 status. Values are mean ± SD or n (%) unless otherwise specified.

Characteristics	CCL-18-positive, n = 24	CCL-18-negative, n = 58	p
Age at disease onset, yrs	55.5 ± 10.3	52.8 ± 11.3	0.25
Disease duration, yrs	2.3 ± 1.7	2.4 ± 1.4	0.55
Male sex	6 (25)	12 (21)	0.67
African American	6 (25)	12 (21)	0.67
Disease type, diffuse	13 (54)	32 (55)	0.93
Immunosuppression	7 (29)	30 (52)	0.06
FVC% at baseline	73.4 ± 15.2	76 ± 18.3	0.56
mRSS	17.7 ± 12.2	16.3 ± 11.1	0.67
Anti-Scl 70	7 (30)	10 (17)	0.19
Anti-RNA polymerase III	4 (17)	16 (28)	0.40
Anticentromere	1 (4)	4 (7)	1.00

FVC%: % forced vital capacity; mRSS: modified Rodnan skin score.