There is an interesting article abt this on Andrew Vachss's website.Vachss is an attorney and child advocate who is also the author of an excellent but dark series of novels about a group of NY'ers who are outside of mainstream, fighting the bad guys as they see them.
The author of the paper queried 48 womens' shelters with the following:
Percent Respondents Answering "Yes" to Each Question
Do women who come into your shelter talk about incidents of pet abuse? 85.4%
Do children who come into your shelter talk about incidents of pet abuse? 63.0%
In your experience with shelters, have you observed the coexistence of domestic violence and pet abuse? 83.3%
Do you have any questions in your intake interview concerning pets? 27.1%
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I know one person whose very controlling spouse uses things like $$ to take a sick cat to the vet as part of his repetoire. x(
http://www.vachss.com/guest_dispatches/ascione_1.html">Link