Table 2.
Biomarker mean results by BILAG class (N = 341)
| A (n = 2) | B (n = 25) | C (n = 3) | D (n = 113) | E (n = 39) | N/A (n = 159) | P value | |
|---|---|---|---|---|---|---|---|
| NGAL, ng/ml, mean (SD) ELISA MPL |
2.66 (1.98) | 4.03 (1.22) | 1.87 (2.03) | 2.84 (1.37) | 3.52 (1.45) | 2.80 (1.41) | 0.00016 |
| 2.15 (0.93) | 2.54 (0.47) | 1.60 (1.24) | 2.20 (0.82) | 3.52 (0.57) | 2.33 (1.00) | 0.232 | |
| KIM-1, pg/ml; mean (SD) ELISA MPL |
5.78 (1.02) | 6.82 (0.67) | 5.95 (0.63) | 5.97 (1.35) | 5.99 (1.20) | 6.30 (0.99) | 0.01 |
| 5.78 (0.78) | 6.75 (0.71) | 6.13 (0.48) | 5.87 (1.78) | 6.19 (1.10) | 6.24 (1.15) | 0.0689 | |
| MCP-1, pg/ml, mean (SD) ELISA MPL |
5.53 (0.53) | 5.47 (0.75) | 4.69 (0.85) | 4.60 (1.73) | 4.89 (1.20) | 5.20 (0.96) | 0.00231 |
| 5.26 (1.04) | 5.48 (0.74) | 4.89 (0.81) | 4.60 (1.90) | 4.75 (1.33) | 5.14 (0.93) | 0.00978 | |
| Adiponectin, ng/ml, mean (SD) ELISA MPL |
1.71 (0.10) | 1.69 (0.18) | 1.53 (0.17) | 1.55 (0.31) | 1.56 (0.26) | 1.63 (0.23) | 0.0609 |
| 1.54 (4.82) | 4.11 (0.59) | 2.88 (0.61) | 2.49 (1.33) | 2.78 (0.99) | 2.27 (1.44) | 7.03 × 10−8 | |
| Ceruloplasmin, ng/ml, mean (SD) ELISA | 8.80 (4.01) | 8.58 (1.05) | 7.34 (0.16) | 6.77 (1.09) | 6.80 (1.02) | 7.05 (0.86) | 1.44 × 10−13 |
| Hemopexin, ng/ml, mean (SD) ELISA | 6.23 (1.87) | 7.21 (0.42) | 6.51 (0.47) | 5.91 (1.06) | 5.85 (1.01) | 6.29 (0.94) | 6.54 × 10−8 |
BILAG, British Isles Lupus Assessment Group; ELISA, enzyme-linked immunosorbent assay; KIM-1, kidney injury molecule−1; MCP-1, monocyte chemoattractant protein−1; MPL, multiplex platform; NGAL, neutrophil gelatinase−associated lipocalin.