However, men in high risk groups - especially those who have a family history of prostate cancer - should begin at age 45. (bookbrowse.com)
High risk groups include male drivers under 25 years of age, unmarried women under age 21 and anyone with a poor driving record. (blog.agentinsure.com)
For example, the most commonly known highest risk group is young males, under the age of twenty - five, driving red sports cars. (carinsurancequote.net)