Table 1 Basic clinicopathological characteristics of the Lynch and sporadic tumors investigated

Lynch

  Number of mutation carriers

34

8

13

  Number of samples

35^c

9

14^g

 Grade^a

   G1

18 (55%)^d

N/A

6 (46%)^h

   G2

12 (36%)^d

N/A

6 (46%)^h

   G3

3 (9%)^d

N/A

1 (8%)^h

 Stage^b

   I

25 (71%)

5 (56%)

7 (50%)

   II

4 (11%)

2 (22%)

4 (29%)

   III

4 (11%)

1 (11%)

3 (21%)

   IV

0 (0%)

0 (0%)

0 (0%)

   N/A

2 (6%)

1 (11%)^f

 Average age at diagnosis (years)

49.3

45.8

47.6

Sporadic

  Number of samples

36^e

39

28

 Grade^a

   G1

15 (42%)

N/A

11 (39%)

   G2

5 (14%)

N/A

10 (36%)

   G3

16 (44%)

N/A

7 (25%)

 Stage^b

   I

22 (61%)

21 (55%)

12 (43%)

   II

4 (11%)

2 (5%)

2 (7%)

   III

10 (28%)

14 (37%)

14 (50%)

   IV

0 (0%)

2 (5%)

0 (0%)

 Average age at diagnosis (years)

65.3

57.1

59.7