Explain the multicausation disease model.
The multicausation disease model demonstrates the complex causes of noncommunicable diseases. At the center, the host is represented showing its unique genetic endowment. The host is surrounded by a complex environment. The first layer of this environment is the host’s personality, beliefs, and behavioral choices that can impact health outcomes. The outer layer represents factors that can contribute to disease process such as access to the health care system, air pollution, water quality, and infectious disease outbreaks.