Demographic and clinical characteristics of patient (table 1):
The study population consisted of 40 patients with CTD, 20 of whom had
ILD (12 mild, 8 severe); their data were compared to those of 20 healthy
control subjects. the mean age of the study groups, in control group the
mean age was 12 ± 2.4 years, versus 13 ± 2.2, 11.9 ± 3.5 years in CTD
only group, CTD+ILD group, respectively, The CTD duration was 3.2 ± 2.5,
2.6 ± 1.2 CTD only group and CTD+ILD group, respectively. The ILD
duration was 1 y. (min 0.; max 3 y.). With female predominance in all
groups.