Table 1.

Comparison of CECs and EPCs number between patients affected by SSc and healthy controls

	SSc patients (50)	Healthy controls (50)	P value
CECs/mmc	689 ± 464	22 ± 17	< 0,0001
EPCs/mms	146 ± 92	1 ± 1	< 0,0001

CECs, circulating endothelial cells; EPCs, endothelial progenitor cells; SSc, progressive systemic sclerosis.