We present a model for HIV-related behaviors that emphasizes the dynamic and social nature of the structural factors that influence HIV prevention and detection. Key structural dimensions of the model include resources, science and technology, formal social control, informal social influences and control, social interconnectedness, and settings. These six dimensions can be conceptualized on macro, meso, and micro levels. Given the inherent complexity of structural factors and their interrelatedness, HIV prevention interventions may focus on different levels and dimensions. We employ a systems perspective to describe the interconnected and dynamic processes of change among social systems and their components. The topics of HIV testing and safer injection facilities are analyzed using this structural framework. Finally, we discuss methodological issues in the development and evaluation of structural interventions for HIV prevention and detection.
KeywordsHIV; AIDS; structural factors; diagnosis; prevention Structural interventions have had a profound impact on public health. Even a casual observer of history can see the connection between structural changes such as water purification or highway safety and reductions in morbidity and mortality. Structural interventions can have a tremendous effect on individual-level health behaviors as well. Legislative changes such as regulating tobacco sales and usage have led individuals to modify their health behaviors and dramatically reduced smoking rates. 1Although structural approaches to health promotion are clearly effective, they are often viewed as outside the purview of behavioral interventionists. Prevailing conceptions of "cause" as immediate and necessary antecedents of health outcomes consider factors that affect outcomes in more indirect and indefinite ways as less important or less relevant. 2,3 Structural factors have also been neglected because researchers in the field of HIV prevention are often unprepared to develop and evaluate strategies to change laws, social organizations, or physical structures. Moreover, because of the scope and focus of structural interventions, randomized controlled trials, the gold standard to evaluate interventions'