Table 5.
κ values for the strength of agreement between assays according to Endocrine Society's Guidelines. κ < 0.20 (poor), 0.21–0.4 (fair), 0.41–0.60 (moderate), 0.61–0.80 (good), 0.81–1.00 (very good). Figures in bold represent very good agreement.
| 25(OH)D | DiaSorin vs Elecsys |
DiaSorin vs Lumipulse |
Elecsys vs Lumipulse |
|---|---|---|---|
| Κ (% agreement) | |||
| <10 ng/mL | 0.94 (98.1) | 0.90 (96.2) | 0.84 (94.3) |
| 11–20 ng/mL | 0.66 (90.5) | 0.79 (92.4) | 0.49 (83.0) |
| 21–29 ng/mL | 0.83 (94.4) | 0.79 (94.3) | 0.64 (88.7) |
| 30–100 ng/mL | 0.88 (94.3) | 0.87 (94.3) | 0.77 (88.7) |
κ, Cohen index.