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Table 4 Distribution of mortality by organic system, according to sex and body size

From: Morbidity and mortality in elderly dogs – a model for human aging

  

Sex

Body size

Total % (n = 211)

Males (n = 99)

Females (n = 112)

P value

≤20 kg (n = 87)

> 20 kg (n = 66)

P value

Cardiovascular

46 (21.8)

25

21

0.249

18

17

0.459

Digestive

20 (9.5)

10

10

0.981

8

3

0.270

Endocrine

8 (3.8)

6

2

0.104

3

1

Genital

7 (3.3)

4

3

3

2

Hematopoietic

20 (9.5)

13

7

0.087

8

10

0.257

Liver

12 (5.7)

4

8

0.330

3

2

Mammary gland

24 (11.3)

0

24

0.000

9

9

0.531

Musculoskeletal

11 (5.2)

3

8

0.179

5

1

0.181

Nervous

7 (3.3)

3

4

4

2

Pancreas

3 (1.4)

1

2

1

1

Peritoneum

5 (2.4)

4

1

1

2

Respiratory

12 (5.7)

5

7

0.707

4

8

0.086

Skin/subcutaneous

12 (5.7)

7

5

0.414

3

6

0.141

Urinary

24 (11.4)

14

10

0.232

17

2

0.002

  1. Notes: --- not applicable (low number of counts)