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\nCDC adapted the social ecological model (SEM) of health promotion to represent the Colorectal Cancer Control Program\u2019s (CRCCP\u2019s) multi-level approach to colorectal cancer prevention. The SEM is a systems model with multiple bands of influence. A rainbow-like figure of five bands represents the SEM. At the core of the model is the individual, surrounded by four bands of influence representing the interpersonal, organizational, community, and policy levels. CRCCP grantees implement public health activities at these five levels to maximize synergies of intervention for the greatest impact. Each of these bands of influence in the model is described below.
\nThe innermost band of the SEM rainbow represents the individual who might be affected by the CRCCP. The CRCCP aims to increase the individual\u2019s knowledge and influence his or her attitudes toward, and beliefs regarding\u2014
\nThe CRCCP SEM highlights the importance of providing individuals with high-quality, appropriate colorectal cancer screening and surveillance and ensuring timely initiation of treatment for people who are diagnosed with cancer.
\nThe second band of the SEM rainbow surrounds the individual band and represents colorectal cancer prevention activities implemented at the interpersonal level. These activities are intended to facilitate individual behavior change by affecting social and cultural norms and overcoming individual-level barriers. Friends, family, health care providers, community health workers or promotoras, and patient navigators represent potential sources of interpersonal messages and support. The CRCCP SEM highlights several interventions appropriate for this level, including\u2014
\nThe third band of the SEM rainbow surrounds the interpersonal band and represents colorectal cancer prevention activities implemented at the organization level. These activities are intended to facilitate individual behavior change by influencing organizational systems and policies. Health care systems, employers or worksites, health care plans, local health departments, tribal urban health clinics, and professional organizations represent potential sources of organizational messages and support. The CRCCP SEM highlights several interventions appropriate for this level, including\u2014
\nThe fourth band of the SEM rainbow surrounds the organizational band and represents colorectal cancer prevention activities implemented at the community level. These activities are intended to facilitate individual behavior change by leveraging resources and participation of community-level institutions such as comprehensive cancer control coalitions, tribal health departments, media, and community advocacy groups, which represent potential sources of community communication and support. The CRCCP SEM highlights several interventions appropriate for this level, including\u2014
\nThe fifth and outermost band of the SEM rainbow surrounds the community band and represents colorectal cancer prevention activities at the policy level. These activities involve interpreting and implementing existing policy. Federal, state, local, and tribal government agencies may support policies that promote healthy behavior, including screening. Examples include\u2014
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