Table 5

Main demographic features for the two disease subsets, limited and diffuse systemic sclerosis (SSc)

		Disease subset		p Value
		lSSc	dSSc	p Value
Number of patients	173	117
F/M	6.2	4.3	NS
Age at enrolment (years)	55 (range 21–87)	49 (range 8–86)	0.0002
Age at onset^5-150 (years)	42 (range 7–74)	41 (range 5–80)	NS
Mean disease duration (years)^5-151	13 (range 0–56)	8 (range 0–47)	0.0005
Mean disease duration (years)^5-152	9 (range 0–51)	7 (range 0–34)	NS

↵5-150 Appearance of Raynaud's phenomenon.
↵5-151 From the onset of Raynaud's phenomenon.
↵5-152 From the first non-Raynaud's manifestation.