Fearfulness. Aggression was mostly caused by fear. Greater than breed or other characteristics.
Older dogs were more aggressive. Perhaps chronic disease suffering makes them less tolerant with people.
Gender. Male dogs were more aggressive. Sterilization did not affect aggression.
Size. Small dogs attacked more than big ones. Perhaps because they dread humans and larger animals more.
Experienced owner. First-time dog owners had more aggressive pets.
Socialization. Dogs without canine mates were more hostile toward people.
Pisces Hear your inner voice. It will lead you to the proper solutions to all your questions. This lets you make judgments without errors.