This is I think the Clifton study, and if you read the fine print you will see they got these statistics from MEDIA REPORTS....which makes them worth virtually nothing.
This is from the same site:
An older study published in the Journal of Pediatrics reported 109 fatalities from 1989 to 1994 in the US, with 37% inflicted by pit bulls and Rottweilers. (Sacks JJ, Lockwood R, Hornreich J, Sattin RW. Fatal dog attacks, 1989-1994. Pediatrics 1996; 97:891-5.)
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This study was conducted by a reputable organization using accurate date and found that 37% of fatal dog bites were from pits or rotweillers, that leaves SIXTY THREE PERCENT of fatalities by other breeds.....
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Maybe pit bulls and rottweillers do attack more frequently, but using media coverage as the baseline data point is scientifically worthless.
It also doesn't account for any variables such as the dog being chained, abused, teased, neutered or not..that may have as much more more of an affect as the breed of dog.
60 million dogs--20 fatalities a year, with more than half coming from non pit bulls and non rotweillers, even by your own estimate......
Maybe I'm crazy, but I don't find this particularly compelling....especially in light of say the real world experience of the Michael Vick dogs that were definitely abused and bred for aggression, and don't you know half of them have been adopted with some becoming service dogs, one of them goes to the hospital to visit sick children. He must be sooooo ferocious.....