Increased Whole Blood Viscosity Is Associated with the Presence of Digital Ulcers in Systemic Sclerosis: Results from a Cross-Sectional Pilot Study

Table 1

Characteristics of the studied patients.

	Systemic sclerosis ()	Controls ()	value
Gender	31 women (94%); 2 men (6%)	12 women (92%); 1 man (8%)	1.0
Race	20 Caucasians (60.6%); 10 African Americans (30.3%); 3 Hispanics (9.1%)	8 Caucasians (61.5%); 3 African Americans (23.1%); 2 Hispanics (15.4%)	0.9309
Age range	48.76 ± 12.66	41.15 ± 13.27	0.0772
Disease type	Diffuse SSc (, 57%); Limited SSc (, 43%)	—
Disease duration	1–29 years	—
Digital ulcers	Present ulcers (, 12.1%); History of ulcers (, 51.5%); No history of ulcers (, 36.4%)	—

BMI: body mass index, CRP: C-reactive protein, and SSc: Systemic sclerosis.