Table 1.

Participant distribution by subsets.

Comparison	Group	Patients
Controls	CONT	49
Patients	PAT	49
Type of scleroderma	LSc	6
	dcSSc	32
	lcSSc	11
Time since the diagnosis of the disease (years)	0–3	13
	4–10	15
	>11	21
Treatment with corticoids (years)	No	21
	0–3	17
	>3	11
Pulmonary fibrosis	No	26
	Yes	23
Cardiac affliction	No	42
	Yes	7
Pulmonary hypertension	No	31
	Yes	18