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Table 7 Cluster description by active and illustrative variables

From: Unsupervised clustering of wildlife necropsy data for syndromic surveillance

Cluster

Size

Type of variable

Modality

% clustera

% globalb

V test

1

1057

active

haemorrhage = yes

70.6

33.9

26.1

   

hypertrophy = no

98.0

73.6

22.9

   

other inflammation = no

95.0

70.3

21.3

   

spleen = not affected

97.4

75.9

20.5

  

illustrative

cause of death = anticoag. pois.

12.8

2.3

18.7

   

agent = anticoagulants

9.1

1.5

16.2

   

species = roe deer

9.3

25.4

-14.0

2

1117

active

diarrhoea = yes

46.5

8.6

infinite

   

intestines = affected

80.9

30.3

37.8

  

illustrative

cause of death = coccidiosis

11.3

2.9

14.6

   

cause of death = other int. paras.

10.4

4.1

9.8

   

cause of death = other poisoning

6.0

2.4

7.4

   

cause of death = DNR

36.3

27.0

7.3

3

1632

active

haemorrhage = no

99.3

66.1

37.5

   

spleen = not affected

99.0

75.9

29.2

   

trachea = not affected

97.2

72.4

29.0

   

liver = not affected

86.3

56.1

28.7

   

congestion = no

86.0

56.0

28.5

   

hypertrophy = no

95.9

73.6

25.9

   

altered texture = no

99.0

82.7

23.4

  

illustrative

cause of death = other

16.2

6.6

15.4

   

species = wood pigeon

5.6

1.9

10.6

   

cause of death = resp. infection

8.7

4.1

10.6

   

cause of death = shoot. accident

9.3

4.1

10.5

   

species = roe deer

32.9

25.4

7.6

   

cause of death = VHD

0.4

3.6

-9.3

   

species = European brown hare

31.1

47.8

-15.1

   

cause of death = EBHS

0.3

7.5

-15.5

4

518

active

stomach = affected

51.0

8.5

26.7

   

other inflammation = yes

75.7

29.7

22.3

   

heart = affected

41.7

8.5

21.6

   

parasitic lesions = yes

34.9

6.8

19.8

   

transudates = yes

32.8

8.1

16.9

   

necrosis = yes

33.0

9.4

15.5

   

lung = affected

81.7

50.2

15.3

  

illustrative

agent = strongylida

75.7

33.2

20.4

   

species = roe deer

64.1

25.4

19.2

   

agent = trichurida

32.2

11.1

13.4

   

species = European brown hare

10.8

47.8

-18.5

5

750

active

other inflammation = yes

77.2

29.7

28.2

   

lung = affected

92.1

50.2

25.8

   

heart = affected

29.7

8.5

18.0

  

illustrative

agent = pasteurellaceae

20.1

7.9

11.3

   

cause of death = resp. infection

13.2

4.1

10.8

   

cause of death = pasteurellosis

14.0

5.0

10.0

   

species = wild boar

8.4

3.7

6.3

6

892

active

traumatic lesions = yes

75.2

9.2

infinite

   

musculoskeletal system = yes

87.6

14.3

infinite

   

haematoma = yes

41.7

10.9

25.9

  

illustrative

cause of death = other trauma

49.7

11.0

31.6

   

species = roe deer

48.3

25.4

15.6

   

cause of death = shoot. accident

9.5

3.7

8.3

7

808

active

trachea = affected

84.9

27.6

36.0

   

haemorrhage = yes

84.3

33.9

31.2

   

altered texture = yes

51.9

17.3

23.9

   

liver = affected

80.0

43.9

22.0

   

congestion = yes

78.6

44.0

21.1

   

lung = affected

83.8

50.2

20.8

   

respiratory organs = affected

38.5

13.8

18.6

  

illustrative

cause of death = EBHS

30.7

7.5

21.2

   

cause of death = VHD

19.4

3.6

19.2

   

species = wild rabbit

25.4

9.0

14.6

   

cause of death = other trauma

2.7

11.0

-9.1

   

species = roe deer

6.4

25.4

-14.6

8

1306

active

spleen = affected

87.9

24.1

infinite

   

hypertrophy = yes

89.4

26.4

infinite

   

liver = affected

66.3

43.9

17.7

   

purulent inflammation = yes

44.7

25.3

16.6

  

illustrative

cause of death = yersiniosis

34.2

8.9

29.3

   

species = European brown hare

82.4

47.8

28.0

   

agent = yersinia

32.8

9.1

27.3

   

cause of death = other trauma

4.1

11.0

-9.6

   

species = roe deer

6.8

25.4

-18.6

9

629

active

hypertrophy = yes

84.7

26.4

32.1

   

spleen = affected

81.6

24.1

31.8

   

trachea = affected

77.6

27.6

27.2

   

altered texture = yes

63.1

17.3

27.0

   

urinary/genital organs = affected

70.9

23.0

26.7

   

congestion = yes

89.8

44.0

25.1

   

liver = affected

88.6

43.9

24.3

   

lymph nodes = affected

45.5

10.4

23.9

   

haemorrhage = yes

71.5

33.9

20.0

  

illustrative

species = European brown hare

72.3

47.8

12.9

   

cause of death = EBHS

23.1

7.5

12.9

   

agent = eucoccidiorida

52.5

32.3

10.8

   

cause of death = other trauma

2.7

11.0

-8.0

   

species = roe deer

12.7

25.4

-8.0

  1. a Frequency of modality in cluster
  2. b Frequency of modality in the whole dataset
  3. Higher V-test values, p < 0.05