Table 1: Clinical and demographic characteristics of patients.

Sex
F/M
lcSSc (14)dcSSc (11)UCTD (23)
14/0 8/3 23/0

Age range
(median yrs)
41–66
(56)
35–80
(68)
18–73
(51)
Disease duration range
(median yrs)
7–20
(12)
6–30
(24)
3–20
(8)
Raynaud's phenomenon
P/N
14/0 11/023/0
Fingertip ulcers
P/N
14/0 11/014/9
Pulmonary arterial hypertension
P/N
0/147/42/21
Pulmunary fibrosis
P/N
0/147/40/23
Therapy
(iloprost)
Yes Yes Yes