I'm pretty sure it has to do with women and children are seen as more important and if any gender is suppose to survive a conflict, it's the women and children.

I'm pretty sure it has to do with women and children are seen as more important and if any gender is suppose to survive a conflict, it's the women and children. Men are supposed to accept the situation and allow women and children to survive. I find this very old and outdated but it still fits when it comes to statistics.