Table 3.
Serum biomarkers* | Multivariable model (β, 95% CI) | p-value | Multivariable model adjusted for age and sex (β, 95% CI) | p-value |
---|---|---|---|---|
Factor 1 – Inflammation (SAA, IL-6, CRP, sTREM-1) | −0.15 (−0.50 – 0.21) | 0.41 | −0.34 (−0.77 – 0.10) | 0.13 |
Factor 2 – Endothelial and innate immune activation (sCD163, sVCAM-1, sICAM-1, Ang-2/Ang-1 ratio) | −0.42 (−0.78 – −0.06) | 0.02 | −0.56 (−0.92 – −0.21) | 0.003 |
Factor 3 – Endothelin-1 | −0.13 (−0.53 – 0.27) | 0.51 | −0.12 (−0.56 – 0.31) | 0.57 |
Factor 4 – sCD14 | −0.36 (−0.72 – 0.01) | 0.06 | −0.30 (−0.60 – 0.00) | 0.05 |
3B. Biomarker factor correlates of mosaic attenuation, multivariable logistic regression analyses | ||||
Serum biomarkers* | Multivariable model (OR, 95% CI) | p-value | Multivariable model adjusted for age and sex (OR, 95% CI) | p-value |
Factor 1 – Inflammation (SAA, IL-6, CRP, sTREM-1) | 1.09 (0.60 – 1.98) | 0.78 | 0.78 (0.39 – 1.56) | 0.49 |
Factor 2 – Endothelial and innate immune activation (CD163, sVCAM-1, sICAM-1, Ang-2/Ang-1 ratio) | 1.24 (0.68 – 2.29) | 0.48 | 1.11 (0.58 – 2.12) | 0.75 |
Factor 3 – Endothelin-1 | 1.02 (0.55 – 1.91) | 0.94 | 1.19 (0.59 – 2.41) | 0.63 |
Factor 4 – sCD14 | 1.56 (0.84 – 2.89) | 0.16 | 1.84 (0.93 – 3.64) | 0.08 |
3C. Biomarker factor correlates of combined mosaic attenuation and airflow obstruction outcome (representing obliterative bronchiolitis), multivariable logistic regression analyses | ||||
Serum biomarkers* | Multivariable model (OR, 95% CI) | p-value | Multivariable model adjusted for age and sex (OR, 95% CI) | p-value |
Factor 1 – Inflammation (SAA, IL-6, CRP, sTREM-1) | 1.22 (0.60 – 2.48) | 0.58 | 1.07 (0.44 – 2.60) | 0.87 |
Factor 2 – Endothelial and innate immune activation (CD163, sVCAM-1, sICAM-1, Ang-2/Ang-1 ratio) | 1.51 (0.60 – 3.80) | 0.39 | 1.72 (0.75 – 3.92) | 0.20 |
Factor 3 – Endothelin-1 | 1.31 (0.62 – 2.77) | 0.47 | 2.05 (0.68 – 6.18) | 0.74 |
Factor 4 – sCD14 | 3.42 (1.25 – 9.30) | 0.02 | 4.47 (1.50 – 13.4) | 0.007 |
Log10-transformed biomarkers were used for factor analyses
NOTE: n = 43 for these multivariable analyses; airflow limitation = lower post-bronchodilator FEV1/FVC z-score; airflow obstruction = post-bronchodilator FEV1/FVC z-score < −1.64