KingRolo, figures such as yours depend somewhat on what you feel constitutes "domestic violence". If we take the Women's Aid definition (that all forms of domestic abuse are a kind of violence even if nobody's been touched) then 1 in 4 women in the UK have reported as having been subjected to domestic violence, while 1 in 6 men have.
That being said, other studies have shown that men are drastically less likely to report it than women are, or even to recognise that their (ex-)partner's abusive behaviour is actually abusive. As a result, the actual prevalence is up for discussion and the 1 in 6 figure should be considered as very much on the low side.
I've not heard the 89% statistic before. Do you have a source for that? Wherever you got that statistic from, did it compare it against the number of men staying in abusive relationships because they know that, if they left, they'd likely never see their children again?
Yes, you're right in saying that, on average, 100 women are year are killed by partners or ex-partners. That's awful. Around 30 men a year are killed in similar circumstances and the conviction rates for their killers is significantly lower. That's pretty awful, too.
The 2004/05 British Crime Survey reported that 2.7% of women and 2.0% of men had been subject to physical assault from their partner in the last year. 1.8% of women and 1.6% of men classified these assaults as "severe". (source)
Women's refuges are a great thing and I'd never knock that. It's a real shame that there aren't more than a handful of men's refuges though. Recognition, support and assistance for male victims of domestic abuse are 20-30 years behind that available for women. It's virtually impossible for a man fleeing domestic violence to find somewhere that will take him in, and even harder to find somewhere that will take him plus his children. That's not because those services are not needed, it's more because the need is ignored. The Government-funded Domestic Violence Helpline won't even talk to you if you're a man trying to get out of an abusive relationship, for example, even though the Government's own figures show that the prevalence isn't really that different.
You can say "in the vast majority of cases" that women abduct children because of domestic abuse on the part of the father as if you have some proof of that. Do you?