Yes, exactly the same issue has been part of the U.K. experience, that witnesses find it very difficult to deal with this process of rebuilding their lives in new communities. Generally, they come from places that are very close knit in terms of the existing communities, in terms of their friends, their relatives, and so on, having a history of all living in one particular community. They therefore aren't, if you like, as mobile as other populations, and they find it incredibly difficult to sustain a new life in a new community.
So certainly the U.K. experience is very similar to what you're describing--people returning, probably, as you say, within 18 months or two years to their home community and basically accepting that they will face increased risks by doing that. But they would rather do that than live with the kind of mental anguish and psychological challenges of trying to lead new lives in completely new communities.