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Table 2 Linearity and recovery

From: Evaluation of a novel quantitative canine species-specific point-of-care assay for C-reactive protein

Dilution Factor

Expected concentration [mg/l]

Mean measured concentration [mg/l]

Recovery [%]

Biasobs [%]

%Biasobs < TEdes (29.6%)

%Biasobs < TEmin (44.4%)

A

0.025

6.1

6.5

106.8

6.8

Yes

Yes

0.05

12.2

11.9

97.0

3.1

Yes

Yes

0.1

24.5

19.8

81.0

19.0

Yes

Yes

0.2

49.0

36.5

74.6

25.5

Yes

Yes

0.4

97.9

59.8

61.0

39.0

No

Yes

0.6

146.9

79.8

54.3

45.7

No

No

0.8

195.8

88.0

44.9

55.1

No

No

1

244.8

122.3

50.0

50.1

No

No

B

0.025

9.0

6.2

68.7

31.3

No

No

0.05

18.1

12.3

68.3

31.7

No

No

0.1

36.1

20.4

56.6

43.4

No

No

0.2

72.2

36.7

50.8

49.2

No

No

0.4

144.4

72.5

50.2

49.8

No

No

0.6

216.6

85.8

39.6

60.4

No

No

0.8

288.8

112.6

39.0

61.0

No

No

1

361.3

132.4

36.7

63.4

No

No

  1. Linearity and recovery rates of CRP measurements performed with a canine serum sample containing A) 244.8 mg/l or B) 361.3 mg/l CRP respectively as determined on the ABX Pentra 400 analyzer
  2. Quality parameters exceeding the quality criteria reported previously [32, 36], are marked in bold letters
  3. Abbreviations: Bias obs observed bias, TE total allowable error, TE des desirable TE, TE min minimally acceptable TE