Table 2 Logistic regression model in which the subsequent appearance of IDUs was the dependent variable and the NEMO score values, history of previous IDUs and the presence of dcSSc variant represented the independent variables

Total number of patients with SSc

98

Number of patients who developed new IDUs

38

Number of patients who did not develop a new IDU

60

Independent variables

Coefficient (standard error)

p

 T0-NEMO score

0.12 (0.03)

= 0.0001

 Previous IDUs

2.63 (0.63)

< 0.0001

 dcSSc variant

discharged

–

 Constant

− 2.52

Full model likelihood

Chi-square

p

 98.32

44.56

< 0.0001