The Scottish Health Survey 2008

The Scottish Health Survey 2008


Table 2.10 Internal quality control results for cotinine a

2008

Date (2008/2009)

Level (ng/ml) Target/Achieved

S.D. (ng/l) Achieved

C.V (%) Achieved

December 2008

80/77.09

3.89

5.05

8/7.53

0.29

3.82

0.3/0.29

0.03

8.62

na

na

na

na

na

na

na

na

na

January 2009

80/77.02

1.48

1.92

8/7.86

0.22

2.76

0.3/0.31

0.02

6.09

750/718.80

25.69

3.57

250/249.85

2.52

1.01

30/31.06

0.19

0.60

February

80/74.30

5.01

6.74

8/7.97

0.32

4.02

0.3/0.31

0.02

4.87

750/721.26

48.23

6.69

250/231.65

7.71

3.33

30/32.60

1.79

5.49

3/2.82

0.16

5.79

March

80/82.56

2.70

3.27

8/8.30

0.48

5.75

0.30.31

0.02

6.89

750/738.53

10.84

1.47

250/243.10

9.11

3.75

30/30.14

1.31

4.33

April

80/76.49

8.22

10.74

8/8.55

0.13

1.49

0.3/0.30

0.03

10.74

750/744.53

22.20

2.98

250/253.67

4.83

1.90

30/30.81

0.44

1.43

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