Your risk is also greater if you're of Northern European ancestry. In that case, you have a one in 29 chance of carrying the gene. Among other ethnic groups in the United States, Hispanics have a one in 46 chance of carrying the gene, blacks have a one in 65 chance and Asian-Americans a one in 90 chance.
Prevalence among sexes is also about equal, though females may tend to die at a younger age from it.
I know three people with CF; one little girl, two guys. The girl has a family history...two of her female cousins died in their early twenties.
One of the guys is a HS friend of my husband...he's still going strong at near 40; he doesn't even attempt to take care of himself. Actually, he always assumed that he would be dead by now, and has literally lived his life as though each day could be his last...as in, party on!