| AUC | area under the ROC curve |
| AUC* | 0.632+ bootstrap adjusted area under the ROC curve |
| CASP8 | caspase-8 |
| CCL11 | eotaxin |
| CCL25 | C-C motif chemokine 25 |
| CDCP1 | CUB domain-containing protein 1 |
| CD244 | natural killer cell receptor 2B4 |
| CD8A | T-cell surface glycoprotein CD8 alpha chain |
| CXCL10 | C-X-C motif chemokine 10 |
| CXCL9 | C-X-C motif chemokine 9 |
| CRP | C-reactive protein |
| CV | coefficient of variance |
| ESTHER | Epidemiologische Studie zu Chancen der Verhütung, Früherkennung und optimierten Therapie chronischer Erkrankungen in der älteren Bevölkerung |
| FGF19 | fibroblast growth factor 19 |
| IL12B | interleukin 12 subunit beta |
| IL6 | interleukin 6 |
| IL8 | interleukin 8 |
| INS | inflammation protein biomarker score |
| INS-pack-years | combined inflammation protein biomarker and pack-years score |
| LC | lung cancer |
| LCDRAT | Lung Cancer Death Risk Assessment Tool |
| LCRAT | Lung Cancer Risk Assessment Tool |
| LLP | Liverpool Lung Project Risk Model |
| LLPi | Liverpool Lung Project Incidence Risk Model |
| LDCT | low-dose computed tomography |
| MMP1 | matrix metalloproteinase-1 |
| MCP4 | monocyte chemotactic protein 4 |
| N | number |
| PEA | proximity extension assay |
| PLCOM2012 | Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial Model 2012 |
| Q | quartile |
| QCC | quality control criteria |
| ROC | receiver operating characteristics |
| SCAD | smoothly clipped absolute deviation |
| SCF | stem cell factor |
| SD | standard deviation |
| 95% CI | 95% confidence intervals |