You may want to check with Joint Commission- Several years ago- they had a "Project in a Box" for community falls prevention- and that would include outcome measures.
If I could pose a follow-on question here, from the body of literature in this area, what your position on direction of relationship between disability (for example, measured through ADLs) and falls? Would be quite essential to prevention efforts, but remains unclear from my reading of the literature. As a concrete example, we have a data set from six countries with fall-related injury and disability variables - and at this point have removed disability from the dependent variables in the model. Any insights would be appreciated.