Table 1

 Demographic findings according to the time period of first evaluation

1972–61977–811982–61987–911992–6
SSc, systemic sclerosis.
*p<0.05, **p<0.01.
n221323392534655
    Female sex (%)798084*7981
    Age (at first diagnosis by a doctor; years)4043424042
SSc subtype
    Diffuse SSc (%)40*47494447
Disease duration* (years)
    At first diagnosis by a doctor2.12.52.32.72.4
    At first visit8.4*6.77.07.36.9
    At last study visit15.114.714.714.211.1**