Theoretical Framework: The conceptual and theoretical framework of this study is the revised behavioral model of health services use (Andersen 1974, 1968, 1983, 1995). The model posits that people's use of health services is a function of their predisposition to use services, factors that enable or impede use, and their need for care (Andersen 1995). Trust in physicians and the health system falls under health beliefs (attitudes toward health services), which is one of the predisposing factors that is thought to predict health services utilization and health outcomes. Thus, people with high levels of trust in physicians and the health care system are expected to have more effective access, appropriate health utilization, and better health outcomes. The model has been revised to include veteran-specific variables such as level of service entitlement, period of service, duration in the VA system, and disability status and to measure both health services use and health outcomes.