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Table 5 Cluster description by categories of active and supplementary variables (Cluster 1 to 7)

From: Defining syndromes using cattle meat inspection data for syndromic surveillance purposes: a statistical approach with the 2005–2010 data from ten French slaughterhouses

Cluster

Number of condemned animals (%)

Variable category

Cla/Mod1

Mod/Cla2

Global3

|v.test|

1

9,268 (2.43%)

Fecal contamination=1

82.43

100

2.95

Inf

Lungs=1

10.92

81.26

18.10

Inf

Heart=1

14.79

61.45

10.10

Inf

Abattoir number=7

6.5

18.44

6.9

37.52

Other motive=1

6.56

14.10

5.23

32.64

Age=[8;24 months old)

4.1

34.19

20.30

31.55

Sex=Non castrated male

3.81

39.95

25.53

30.75

2

7,215 (1.89%)

Bronchopneumonia=1

15.39

28.68

3.53

Inf

Pericarditis=1

87.12

100

2.17

Inf

Lungs=1

4.81

45.99

18.10

Inf

Heart=1

18.68

99.7

10.10

Inf

Abattoir number=6

3.32

39.58

22.59

32.64

Production type=Dairy cattle

2.76

51.34

35.27

28.15

Region=Basse-Normandie

3.00

33.83

21.33

24.74

3

250,256 (65.65%)

Abattoir number=3

85.20

10.28

7.92

Inf

Abattoir number=2

77.97

23.40

19.70

Inf

AMI abnormality=No

66.98

98.03

96.09

Inf

Region=Rhône-Alpes

83.02

6.61

5.23

Inf

Region=Franche-Comté

82.73

3.70

2.94

Inf

Region=Burgundy

81.86

6.61

5.30

Inf

Region=Auvergne

76.63

11.32

9.70

Inf

Macular telangiectasia=1

87.65

11.08

8.30

Inf

Liver fluke=1

88.95

25.61

18.90

Inf

Sclerosis=1

80.97

12.50

10.13

Inf

Abscess=1

74.52

26.74

23.56

Inf

Liver=1

76.88

79.07

67.52

Inf

Production type=Beef cattle

71.97

48.53

44.27

Inf

Age=≥10 years old

74.72

14.91

13.10

Inf

Age=[5;10 years old)

71.21

40.54

37.37

Inf

Sex=Female

71.03

75.73

69.99

Inf

4

8,736 (2.29%)

Abattoir number=6

4.21

41.49

22.59

Inf

Peritonitis=1

63.52

100

3.61

Inf

Preventive motive=1

6.01

31.44

11.99

Inf

Abscess=1

4.18

42.96

23.56

Inf

Viscera=1

11.96

78.45

15.03

Inf

Udder=1

7.75

17.89

5.29

Inf

Part of the carcass=1

9.69

54.17

12.81

Inf

Region=Basse-Normandie

4.00

37.21

21.33

34.28

5

6,257 (1.64%)

Congestion=1

18.03

7.88

0.72

Inf

Pleurisy

22.99

8.17

0.58

Inf

AMI abnormality=Yes

8.75

20.86

3.91

Inf

Peritonitis=1

16.93

37.22

3.61

Inf

Whole carcass=1

40.91

85.47

3.43

Inf

Viscera=1

9.47

86.69

15.03

Inf

Tongue=1

42.38

99.76

3.86

Inf

Head=1

2.79

99.68

7.87

Inf

Kidneys=1

8.38

98.16

19.23

Inf

Lungs=1

7.93

87.45

18.10

Inf

Udder=1

21.89

70.50

5.29

Inf

Liver=1

2.40

98.59

67.52

Inf

Heart=1

16.15

99.39

10.10

Inf

6

15,538 (4.08%)

Abattoir number=8

13.26

16.08

4.94

Inf

Abattoir number=6

8.19

45.40

22.59

Inf

Region=Haute-Normandie

11.59

15.37

5.41

Inf

Region=Champagne Ardennes

20.49

8.32

1.66

Inf

Region=Basse-Normandie

7.39

38.67

21.33

Inf

Production type=Mixed cattle

7.66

38.43

20.46

Inf

Age=[2;3.5 years old)

26.65

86.70

13.26

Inf

Sex=Castrated male

91.00

100

4.48

Inf

7

5,120 (1.34%)

Abattoir number=6

2.82

47.40

22.59

Inf

Local muscular cysticercosis=1

99.77

100

1.35

Inf

Head=1

12.87

75.39

7.87

Inf

Heart=1

4.36

32.79

10.10

Inf

Age=[2;3.5 years old)

3.03

29.94

13.26

31.32

Sex=Castrated male

4.65

15.51

4.48

30.49

Region=Basse-Normandie

2.45

38.89

21.33

28.69

  1. 1 Proportion of cattle that had the variable category and were in the cluster e.g. 15.39% of cattle that had a bronchopneumonia lesion in the whole population were in the cluster 2.
  2. 2 Proportion of cattle in the cluster that had the variable category e.g. 28.68% of cattle in the cluster 2 had a bronchopneumonia lesion.
  3. 3 Proportion of cattle in the global population that had the variable category e.g. 3.53% of the whole population had a bronchopneumonia lesion.
  4. Categories of supplementary variables are underlined. Categories are presented according to decreasing absolute value of v-test. Inf= infinite, AMI= Ante-Mortem Inspection.
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BMC Veterinary Research

ISSN: 1746-6148

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