Posted by Professor Vinnie Boombatz ( aka Jack Boyd ) (167.206.58.39) on January 03, 19100 at 16:51:44:
Listen carefully everyone:
Clusters are rare. Whether you have no one in your family with clusters or a few with clusters your chances of having them are small.
However a genetic tendency goes something like this:
If, for argument sake, 1% of the general population has clusters AND
2% of those people who come from families with another person having clusters, in turn have clusters than
there is a statistically significant heredity component. ( twice as likely to have clusters if someone else in your family has clusters ).
To put it yet another way - breast cancer has a heredity factor. If you have someone in your family with breast cancer you are more likely to get breast cancer than someone with no family history ( that is why they ask these questions in the Drs. office ). It should aslo be said that MOST people who get breast cancer have NO other family member with breast cancer.
It is all about statistically significant greater probabilities.
Forgive me for this academic, condescending, pedantic diatribe ( or bullshit if you like ) but this is true- I swear it.
PS - I am absolutely convinced that if someone in your family has clusters than other family members are more likely to get clusters than people from families with no history of clustering.