Sociology, Department of


Date of this Version



Published in final edited form as: J Ethn Subst Abuse. 2018 ; 17(2): 199–222. doi:10.1080/15332640.2017.1326864


© 2017 Taylor & Francis. Used by permission.

This is the HHS Public Access Author manuscript.


Understanding the short- and long-term transmission dynamics of blood-borne illnesses in network contexts represents an important public health priority for people who inject drugs and the general population that surrounds them. The purpose of this article is to compare the risk networks of urban and rural people who inject drugs in Puerto Rico. In the current study, network characteristics are drawn from the sampling “trees” used to recruit participants to the study. We found that injection frequency is the only factor significantly related to clustering behavior among both urban and rural people who inject drugs.