Dr. Ashley Buchanan presented at Joint Statistical Meetings (JSM) 2019 as a part of the “Novel Statistical Methods for Network-Based Studies Among People Who Use Drugs” session. Her talk was titled “Toward Evaluation of Dissemination of HIV Prevention Interventions Among Networks of People Who Inject Drugs” and covers research on the application of cluster based disseminated effects methods to networked data. It included results from an analysis on the effects of individual attitudes towards HIV risk on engagement with HIV care among people who inject drugs (PWID) from the Social Factors and HIV Risk study.