Introduction

Although screening has been proven to reduce the mortality rate of colorectal cancer (CRC), national surveys indicate that utilization rates are less than 50%. (1)

This module will address two important questions:

• Why are some people motivated to obtain CRC screening while others choose not to be screened?

• How can clinicians improve the adherence of their patients to prescribed regimens? 

There is no single model to explain all behaviors.  However, theories of health behavior can give insight and suggest strategies that can enhance patient adherence.

This module includes information about four theoretical frameworks:

• The Health Belief Model
• Social Cognitive Theory
• The Transtheoretical Model (also called Stages of Change)
• The Precaution Adoption Model