http://newgon77idcem62vqlfge3jkidjenvf6afhxwr2napk4kpp2labjbdid.onion/wiki/index.php?title=Research:_Prevalence_of_Harm_and_Negative_Outcomes
"For data analysis, raw scores were weighted based on participants' reported network size. Of 575 participants (85% men and 15% transgender), 32% reported childhood sexual experiences with an older partner. Mean age at first experience was 9 years, partners being, on average, 19 years old, and mostly men.