Failure of Colonoscopy Knowledge to Predict Colonoscopy Uptake

Area of Science:

• Public Health
• Medical Education
• Gastroenterology

Background:

• Colorectal cancer (CRC) screening uptake remains suboptimal in individuals over 50.
• Educational interventions aim to improve CRC screening rates, but their effectiveness may be influenced by patient knowledge and barriers.

Purpose of the Study:

• To investigate the association between colonoscopy knowledge and both the intention and receipt of colonoscopy.
• To explore the relationship between colonoscopy knowledge and perceived barriers to the procedure.

Main Methods:

• A randomized controlled trial (RCT) evaluated three educational interventions to increase CRC screening.
• Colonoscopy knowledge, intention to receive a colonoscopy, and documented receipt of colonoscopy were assessed.
• Perceived barriers to colonoscopy were also evaluated in relation to knowledge scores.

Main Results:

• Colonoscopy knowledge scores were generally high.
• Higher knowledge was positively associated with the intention to receive a colonoscopy.
• Knowledge was not significantly associated with the actual receipt of a colonoscopy within one year.
• Knowledge scores positively correlated with perceived barriers such as embarrassment and the need for a strong laxative.

Conclusions:

• Colonoscopy knowledge alone is insufficient to drive screening uptake.
• Effective CRC screening promotion must address patients' emotional and practical barriers.
• Improving CRC screening rates requires interventions that go beyond simply providing information.