A 1992 survey studying father-daughter incest in Finland reported that of the 9,000 15-year old high school girls who filled out the questionnaires, of the girls living with their biological fathers, 0.2% reported father-daughter incest experiences; of the girls living with a stepfather, 3.7% reported sexual experiences with him.
原帖太长,link在此,http://en.wikipedia.org/wiki/Child_sexual_abuse