The purpose of this research was to provide a systematic review of, and assign an evidence grade to, the research articles on elder abuse. Sixteen health care and criminal justice literature databases were searched. Publications were reviewed by at least two independent readers who graded each from A (evidence of well-designed meta-analysis) to D (evidence from expert opinion or multiple case reports) on the quality of the evidence gained from the research. Of 6,676 titles identified in the search, 1,700 publications met inclusion criteria; omitting duplicates, 590 publications were annotated and graded.