Clinical and molecular analysis of hereditary non-polyposis colorectal cancer in Chinese colorectal cancer patients

Table 2 Number and size of families classified according to different clinical criteria for hereditary non-polyposis colorectal cancer

Clinical criteria	No. of families	Family size	Mean variance
Amsterdam I	9	15.2	37.2
Amsterdam II	21	14.3	20.5
Japanese criteria	65	6.7	13.2
Set A	26	8.7	9.3
Set B	61	6.9	10.6
Bethesda	145	8.3	9.6
Condition 1	9	15.2	37.2
Condition 2	58	13.6	20.7
Condition 3	89	11.7	8.9
Condition 4	105	10.9	7.6
Condition 5	9	7.2	8.5
Condition 6	2	9.9	12.6