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Table 1 Results for trueness, precision and the expanded measurement uncertainty for cortisol analysis in modified Shieh

From: Cortisol directly impacts Flavobacterium columnare in vitro growth characteristics

Cortisol level (µg/L)

Outliers (n)

Values (n)

AR (%)

VCr (%)

VCR (%)

Ua (k = 2) (%)

Ua (k = 3) (%)

Ub (k = 2) (%)

0.05

1

19

104.21

8.01

9.62

23.45

33.07

45.17

0.25

0

20

95.18

2.94

2.91

10.64

13.55

36.86

1.00

0

20

99.10

1.92

2.85

6.60

9.45

35.60

5.00

0

20

99.40

1.76

1.89

4.38

6.27

35.07

50.00

0

20

98.79

1.74

2.20

5.61

7.81

35.27

  1. AR: apparent recovery, VCr: variation coefficient (repeatability), VCR: variation coefficient (reproducibility), U: expanded measurement uncertainty.
  2. aCalculation of U using linear summation with k = 2 (95% confidentiality interval) and k = 3 (99% confidentiality interval).
  3. bCalculation of U using quadratic summation with k = 2 (95% confidentiality interval).