Table 1. Descriptive statistics of 25-OHD values as measured by 4 automated immunoanalytical methods in 100 serum samples taken from a healthy population in the Czech Republic. Percentage of samples bellow 50 nmol/L and 75 nmol/L are included in the table.
| Median 1st–3rd quartile (min–max) (nmol/L) | 2.5–97.5 percentile (nmol/L) | 5–95 percentile (nmol/L) | Samples <50 nmol/L (%) | Samples <75 nmol/L (%) | |
|---|---|---|---|---|---|
| Architect i1000 | 65.2 53.7–77.8 (24.9–136.2) | 35.0–123.3 | 41.3–108.8 | 17% | 70% |
| Unicel Dxl800 | 51.6 42.5–62.4 (23.4–122.5) | 27.9–92.5 | 33.1– 85.8 | 47% | 89% |
| Liaison XL | 48.1 38.6–58.4 (17.0–92.0) | 23.5–86.3 | 26.8–82.7 | 55% | 92% |
| Cobas e411 | 61.0 48.6–78.9 (27.6–140.4) | 30.9–130.5 | 35.1–129.4 | 28% | 71% |