Sigma matrix of vitamin D analysis using six reference target values
| ABVD-13 | ABVD-14 | ABVD-15 | ABVD-16 | ABVD-17 | ABVD-18 | |
|---|---|---|---|---|---|---|
| Reference (ng/mL) | 9.45 | 25.10 | 34.60 | 22.29 | 36.70 | 8.75 |
| Sigma metrics | 1.00 | 1.85 | 2.42 | 1.01 | 1.54 | 0.78 |
Abbreviation: ABVD, accuracy-based vitamin D.
