| CKD | Chronic kidney disease |
| Scr | Serum creatinine |
| D | Diabetic nephropathy group |
| G | Glomerulonephritis group |
| H | Hypertonic nephropathy group |
| N | Healthy volunteers group |
| SD | Standard deviation |
| PCA | Principal components analysis |
| LFQ | Label-free quantification |
| kNN | K nearest neighbors algorithm |
| SVM | Support vector machine |
| MCP-1 | Monocyte chemoattractant protein-1 |
| TGF-β1 | Transforming growth factor-β1 |
| eGFR | Estimated glomerular filtration rate |
| FDR | False discovery rate |