This article reviews 10 techniques used to identify opinion leaders to promote behavior
change. Opinion leaders can act as gatekeepers for interventions, help change social …

Background Injecting drug use is a major risk factor for the acquisition and transmission of
HIV and Hepatitis C virus (HCV). Prevention of these infections among people who inject …

Relationships and the pattern of relationships have a large and varied influence on both
individual and group action. The fundamental distinction of social network analysis research …

Objectives. We examined the effectiveness of the Sources of Strength suicide prevention
program in enhancing protective factors among peer leaders trained to conduct schoolwide …

Diffusion of innovations theory attempts to explain how new ideas and practices spread
within and between communities. The theory has its roots in anthropology, economics …

Harm reduction is both a policy approach and used to describe a specific set of
interventions. These interventions aim to reduce the harms associated with drug use …

We review findings from research on smoking, alcohol, and other drug use, which show that
the network approach is instructive for understanding social influences on substance use. A …

Objectives. Our study tested the effectiveness of network methods for identifying opinion
leaders and for constructing groups. Methods. Three conditions—random, teacher, and …

Worldwide, men who have sex with men (MSM) remain one of the most HIV-vulnerable
community populations. A global public health priority is develo** new methods of …

Background People who inject drugs have been central to the development of harm
reduction initiatives. Referred to as peer workers, peer helpers, or natural helpers, people …