Table 1.

Descriptive statistics of population-based families from the Colon Cancer Family Registry

AllAustraliaUnited StatesCanada
Relative of probandTotal no.No. of CRC affected (%)Mean age at CRC diagnosis (SD)Total no.No. of CRC affected (%)Mean age at CRC diagnosis (SD)Total no.No. of CRC affected (%)Mean age at CRC diagnosis (SD)Total no.No. of CRC affected (%)Mean age at CRC diagnosis (SD)
Proband5,7445,744 (100)52.5 (11.6)911911 (100)45.8 (8.0)3,6263,626 (100)54.7 (11.8)1,2071,207 (100)50.7 (10.9)
Father5,737305 (5)61.6 (11.0)91168 (7)61.3 (12.2)3,626164 (5)61.9 (10.8)1,200a73 (6)61.3 (10.5)
Mother5,737234 (4)61.5 (12.1)91148 (5)61.7 (11.1)3,626142 (4)62.2 (12.4)1,200a44 (4)59.2 (12.0)
Sibling15,095255 (2)56.0 (13.3)2,22826 (1)47.2 (14.1)9,437183 (2)57.3 (12.4)3,43046 (1)55.6 (14.4)
Offspring11,06512 (0.1)40.3 (14.4)1,7722 (0.1)23.0 (8.5)6,8848 (0.1)46.9 (11.0)2,4092 (0.1)31.5 (16.3)
  • Abbreviation: CRC, colorectal cancer.

  • a7 probands had no data for father and mother.