Factors | Estimate | Standard Error | p |
---|---|---|---|
Intercept | 64.0 | 7.54 | < 0.0001 |
DU/DPS | 50.7 | 12.2 | < 0.0001 |
Heart involvement | 31.3 | 14.8 | 0.044 |
Dummy variables were assigned for DU/DPS and heart involvement (the presence of symptoms = 1, the absence of symptoms = 0). The multiple regression equation predicting serum CXCL6 levels is as follows: serum CXCL6 levels = 64.0 + 50.7 × dummy variable of DU/DPS + 31.3 × dummy variable of heart involvement. Adjusted R = 0.59, p < 0.0001. DU: digital ulcers; DPS: digital pitting scars.