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Updated: Aug 14, 2025
Evaluation of Colorectal Cancer Risk and Prevalence by Stool DNA Integrity Detection
Published on: June 8, 2020
Assessing the effects of pharmacist education on colorectal cancer screening and access to a stool-based DNA test
Background:
Colorectal cancer is the third most common cancer and is anticipated to cause 52,580 deaths in 2022 in the United States. Despite the effectiveness of colorectal cancer screening (CRCS), only 74% of adults eligible for CRCS complete the screening. Community pharmacists are well positioned to provide preventive care education and recommendations to the general population.
Objectives:
This study aimed to evaluate overall participants' knowledge, perceptions, and barriers on CRCS before and after receiving pharmacist-led education in the outpatient, community pharmacy setting and to assess the impact of pharmacist intervention on screening uptake with the stool-based DNA test.
Methods:
A 16-item prequestionnaire/postquestionnaire was administered by clinical pharmacists in a grocery store pharmacy chain in the Kansas City area. The questionnaire assessed participants' knowledge, perceptions, barriers, CRCS intentions, and demographics. After completing the prequestionnaire, participants received verbal and written education. For those participants interested in the stool-based DNA test, a facsimile transmission was sent to the participant's provider. The postquestionnaire was administered by the pharmacist coach at visit two 6 to 10 weeks later. Participant demographics were assessed using descriptive statistics. Wilcoxon signed rank test was used to assess prechanges/postchanges in perceptions, awareness, and knowledge. We reported the stool-based DNA test completion rate as an overall percentage.
Results:
Participants' knowledge of CRCS reached statistical significance after pharmacist-led education (score 4.5-6, P = 0.003). There was no change in perception pre/post. The 3 most common reported barriers were cost of screening, not being concerned with colon cancer, and lack of follow-up from a physician. Of 42 participants, 23 (54.8%) were indicated for CRCS and 4 (17%) completed screening during the study.
Conclusion:
Not all eligible participants completed CRCS, but pharmacists improved participants' knowledge of CRCS.
