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Table 1 Measurement uncertainties of two levels of Hcy in amniotic fluid

From: Value of amniotic fluid homocysteine assay in prenatal diagnosis of combined methylmalonic acidemia and homocystinuria, cobalamin C type

True value of Hcy (μmol/L)

Measured median value of Hcy (μmol/L)

CVW (%)

CVB (%)

CVBias (%)

U (%)

2.00

1.95

2.13

4.45

4.29

13.07

16.00

16.45

1.61

3.90

5.71

14.20

  1. Hcy homocysteine, CVW within-day imprecision, CVB between-day imprecision, CVBias method bias imprecision, U measurement uncertainty
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Orphanet Journal of Rare Diseases

ISSN: 1750-1172