Stage I

n = 83

Stage II

n = 160

Stage III

n = 113

Stage IV

n = 54

Tumour not removed

n = 32

Colorectal cancer

8 (23.5)

53 (55.8)

60 (72.3)

49 (98.0)

29 (90.1)

Other malignancy

10 (29.4)

7 (7.4)

5 (6.0)

1 (2.0)

2 (6.2)

Heart disease

9 (26.5)

8 (8.4)

6 (7.2)

0 (0)

0 (0)

Cerebral disease

2 (5.9)

12 (12.6)

4 (4.8)

0 (0)

0 (0)

Lung disease

1 (2.9)

8 (8.4)

3 (3.6)

0 (0)

1 (3.1)

Others

4 (11.8)

7 (7.4)

5 (6.0)

0 (0)

0 (0)

All deaths

34 (100)

95 (100)

83 (100)

50 (100)

32 (100)