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Completed

NCT Number: NCT07778875

Health Belief Model-Based Education for Colorectal Cancer Screening

This randomized controlled experimental study evaluated the effect of a Health Belief Model-based colorectal cancer education, screening, and prevention program among adults aged 50-70 years. A total of 176 participants were randomly assigned to an intervention group or a control group. The intervention group received individual face-to-face education supported by a video and an informational brochure. The control group received no structured education before the immediate post-intervention assessment and was subsequently provided with the brochure. Colorectal cancer knowledge, health beliefs, and attitudes toward cancer screening were assessed before and immediately after the intervention, and screening behavior was evaluated one month later. It was hypothesized that participants receiving the structured educational program would demonstrate greater improvements in colorectal cancer-related knowledge, health beliefs, screening attitudes, and screening uptake than participants in the control group.

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Key information

Conditions

Colorectal Cancer Control and Prevention Adherence Interventions Behavior Health Behavior Health Education Medication Adherence Patient Acceptance of Health Care Patient Compliance Treatment Adherence and Compliance

Age range

50 year–70 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Bartın Yaşam Merkezi

Bartın, Merkez, 74100, Turkey (Türkiye)

About this study

This two-arm, parallel-group randomized controlled experimental study was conducted at Bartın Yaşam Merkezi in Bartın, Türkiye. Community-dwelling adults aged 50-70 years were assigned to the intervention or control group using simple randomization.

The intervention group received an individual educational program developed according to the Health Belief Model. The program combined face-to-face education, video-based education, and an informational brochure. It addressed colorectal cancer risk factors, symptoms, prevention, recommended screening methods, and the importance of early detection. The educational content was structured to address perceived susceptibility, perceived severity, perceived benefits, perceived barriers, health motivation, and confidence in engaging in screening behavior.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Aged 50-70 years Residing in Bartın city center No history of colorectal cancer Willing to participate in the study Provided written informed consent

Exclusion criteria

Previous diagnosis of or treatment for colorectal cancer Communication difficulties that prevented completion of the questionnaires Cognitive impairment that prevented completion of the questionnaires

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Treatment and study plan

Health Belief Model-Based Colorectal Cancer Education Program

Behavioral

The individual educational program combined face-to-face instruction, video-based educational content, and an informational brochure. It addressed colorectal cancer risk factors, symptoms, prevention, early detection, recommended screening methods, health beliefs, and participation in colorectal cancer screening.

Primary outcomes

  1. Colorectal Cancer Screening Uptake

    Time frame: Baseline and 4 weeks after the intervention

    The number and proportion of participants who underwent colorectal cancer screening during the follow-up period were assessed. Screening included fecal occult blood testing or colonoscopy.

Secondary outcomes

  1. Change From Baseline in Colorectal Cancer Knowledge Score

    Time frame: Baseline and 4 weeks after the intervention

    Colorectal cancer knowledge was assessed using the knowledge section of the Colorectal Cancer Early Diagnosis Knowledge and Screening Practices Questionnaire. Scores range from 0 to 18, with higher scores indicating greater knowledge of colorectal cancer risk factors, symptoms, and screening.

  2. Change From Baseline in Perceived Confidence and Benefits

    Time frame: Baseline and 4 weeks after the intervention

    Perceived confidence and benefits were assessed using the corresponding subscale of the Colorectal Cancer Health Belief Model Scale. Scores range from 11 to 55, with higher scores indicating greater confidence in and perceived benefits of colorectal cancer screening.

  3. Change From Baseline in Perceived Barriers

    Time frame: Baseline and 4 weeks after the intervention

    Perceived barriers to colorectal cancer screening were assessed using the corresponding subscale of the Colorectal Cancer Health Belief Model Scale. Scores range from 6 to 30, with higher scores indicating greater perceived barriers.

  4. Change From Baseline in Health Motivation

    Time frame: Baseline and 4 weeks after the intervention

    Perceived seriousness of colorectal cancer was assessed using the corresponding subscale of the Colorectal Cancer Health Belief Model Scale. Scores range from 5 to 25, with higher scores indicating greater perceived seriousness.

Sponsors and collaborators

Lead sponsor

Bartın Unıversity

Other

Registry information

Official study title

Effect of a Health Belief Model-Based Colorectal Cancer Education, Screening, and Prevention Program on Health Beliefs, Screening Attitudes, and Screening Behavior Among Adults Aged 50-70 Years: A Randomized Controlled Experimental Study

Acronym: CRC-HBM

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Aug 21, 2026
Registry last updated
Aug 21, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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