This looks like just some data dump prepared by pit bull supporters to have easy link they can distract people with. Seriously, why would someone create a page with dog bite studies specifically?

But I looked at the very first article and....

"f you consider only the much smaller number of cases that resulted in very severe injuries or fatalities, pit bull-type dogs are more frequently identified."

Yeah, no shit. This entire website is trying to purposefully confuse "dog bites" incidents with dogs killing people and then claims "Look, Chow Chows also bite people. It's the same!". It's not. When people talk about banning dangerous breeds they mean breeds that cause severe injuries.