Table 4

Multivariable linear regression models for the adjusted correlation of calprotectin with disease severity in the validation cohort

Log (calprotectin)Adjusted for age, sex, smoking status and pirfenidone treatment
Coefficient (95% CI)P valueAdjusted R2
DLCO, % predicted−0.01 (−0.002 to −0.020)0.010.16
CPI0.014 (0.003 to 0.024)0.010.17
  • CPI, Composite Physiological Index; DLCO, diffusing capacity for carbon monoxide; R2, coefficient of determination.