And many more people attempting to escape abusive relationship end up dead.
Murder
Women are more likely than men to be murdered by an intimate partner. Of those killed by an intimate partner, about three quarters are female and about a quarter are male. In 1999 in the United States, 1,218 women and 424 men were killed by an intimate partner,[30] and 1,181 females and 329 males were killed by their intimate partners in 2005.[31][32]
My "thanks" button is MIA again but please consider yourself thanked.
I've read that leaving is the most dangerous time and I've seen it firsthand. The abuse victim cannot depend on law enforcement for help. In a case I know of firsthand, the woman who was leaving went to the sheriff's dept and asked if they would just stand by while she got her belongings out of the house. They told her that since she had never signed a complaint against her husband for past abuse, they would not.
And, of course, as any abuse victim will tell you, signing a complaint against your abuser is a really good way to get the crap beat out of you.
Its easy to blame the abuse victim for staying but its not usually easy for him/her to leave.