| Level |
Definition |
| Intrapersonal |
Individual characteristics that influence behaviors, such as knowledge, attitudes, beliefs, and personality traits |
| Interpersonal |
Interpersonal processes and primary groups, including families, friends, and peers that provide social identity, support, and role definition |
| Organizational |
Rules, regulations, policies, and informal structures that may constrain or promote recommended behaviors |
| Community |
Social networks and norms, or standards, which exist formally or informally among individuals, groups, and organizations |
| Policy |
Policies and laws that regulate or support healthy actions and practices for disease prevention, early detection, control, and management |