I know I'm late responding to this, but, if I've read correctly over the last few months, Watchtower has the highest incident rate currently known of a religious organization.
The scope of abuse in the Jehovah's Witnesses is a matter of considerable debate. The church has recently been sued by eight plaintiffs in four lawsuits alleging abuse, one filed in July in Minnesota. Mr. Bowen says that his victims support group, "silentlambs," has collected reports from more than 5,000 Witnesses contending that the church mishandled child sexual abuse.
If these numbers are accuate then that means the amount of child abuse is far greater proportionally to the church. They have far more reports/claims than the church (which has less than 3,000 cases) but with far fewer numbers (more than 100times fewer witnessss than Catholics). Granted, the article does not say these 5,000 claim to be victims. But I also remember reading there were an incredible amount of claims made in Australia.
frankly tho, looking at the kids as statistics makes me feel kinda bad. Regardless of the prevalence it's happening and they aren't admitting it; even going so far as calling the victims liars. At least the church finally owned their wrongs.