It's hard to say, because emergency shelter stays are shorter.
That said, studies have been conducted on the issue of children who have been exposed to domestic violence. For example, Simon Lapierre from the University of Ottawa has conducted a number of studies on the consequences of domestic violence on young children. In his research, he gave voice to children. It's interesting how, as survivors, they understand what violence is. As we have made very clear, being violent is a choice. Studies tend to show that experiencing violence at a young age doesn't doom these children. They don't necessarily become abusive men.