Background
According to the WHO, most chronic diseases, including cancer, can be prevented by identifying their risk factors such as unhealthy diet, smoking and physical inactivity. This study examined the effectiveness of educational interventions on colorectal cancer prevention-nutritional behaviors by employing a health belief model among the personnel of Shahid Beheshti University of Medical Sciences.
Methods
In this experimental study, 110 employees of Shahid Beheshti University of Medical Sciences were randomly divided into two groups (intervention and control) with cluster sampling. The data gathering tool was a researcher-made questionnaire containing two parts of 10-dimensional information and health belief model constructs. Educational intervention was conducted for one month and in four sessions in the form of classroom lecture, pamphlet, educational text messages via mobile phones and educational pamphlets through the office automation system. Two groups were evaluated in two stages, pre-test and post-test. Data were analyzed using SPSS-18 software, paired t-test and independent t-test (intergroup comparisons).
Results
Two groups were evaluated for variables such as age, sex, education level and family history of colorectal cancer, and there was no significant differences between the two groups (P <0.05). After the two months since intervention, except for the mean score of perceived barriers, which was not significant after intervention, the mean scores of knowledge, perceived susceptibility, perceived severity, perceived benefits, perceived self-efficacy, behavioral intention, and preventive behaviors were significantly increased after the intervention in the intervention group compared to the control group (P> 0.05).
Conclusion
Implementation of educational intervention based on health belief model was effective for the personnel, and can enhance the preventative nutritional behaviors related to colorectal cancer.

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On 07 Aug, 2020
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On 16 Apr, 2020
On 16 Apr, 2020
Posted 03 Jan, 2020
On 07 Apr, 2020
On 07 Mar, 2020
Received 07 Mar, 2020
Received 07 Mar, 2020
Received 04 Feb, 2020
On 31 Jan, 2020
On 31 Jan, 2020
Invitations sent on 17 Jan, 2020
On 16 Jan, 2020
On 31 Dec, 2019
On 31 Dec, 2019
On 21 Dec, 2019
On 07 Aug, 2020
On 30 Jul, 2020
On 29 Jul, 2020
On 29 Jul, 2020
On 18 Jul, 2020
Received 06 Jul, 2020
On 08 Jun, 2020
On 05 Jun, 2020
Invitations sent on 05 Jun, 2020
On 04 Jun, 2020
On 04 Jun, 2020
On 15 May, 2020
Received 10 May, 2020
On 22 Apr, 2020
On 22 Apr, 2020
Received 22 Apr, 2020
On 17 Apr, 2020
Invitations sent on 17 Apr, 2020
On 16 Apr, 2020
On 16 Apr, 2020
Posted 03 Jan, 2020
On 07 Apr, 2020
On 07 Mar, 2020
Received 07 Mar, 2020
Received 07 Mar, 2020
Received 04 Feb, 2020
On 31 Jan, 2020
On 31 Jan, 2020
Invitations sent on 17 Jan, 2020
On 16 Jan, 2020
On 31 Dec, 2019
On 31 Dec, 2019
On 21 Dec, 2019
Background
According to the WHO, most chronic diseases, including cancer, can be prevented by identifying their risk factors such as unhealthy diet, smoking and physical inactivity. This study examined the effectiveness of educational interventions on colorectal cancer prevention-nutritional behaviors by employing a health belief model among the personnel of Shahid Beheshti University of Medical Sciences.
Methods
In this experimental study, 110 employees of Shahid Beheshti University of Medical Sciences were randomly divided into two groups (intervention and control) with cluster sampling. The data gathering tool was a researcher-made questionnaire containing two parts of 10-dimensional information and health belief model constructs. Educational intervention was conducted for one month and in four sessions in the form of classroom lecture, pamphlet, educational text messages via mobile phones and educational pamphlets through the office automation system. Two groups were evaluated in two stages, pre-test and post-test. Data were analyzed using SPSS-18 software, paired t-test and independent t-test (intergroup comparisons).
Results
Two groups were evaluated for variables such as age, sex, education level and family history of colorectal cancer, and there was no significant differences between the two groups (P <0.05). After the two months since intervention, except for the mean score of perceived barriers, which was not significant after intervention, the mean scores of knowledge, perceived susceptibility, perceived severity, perceived benefits, perceived self-efficacy, behavioral intention, and preventive behaviors were significantly increased after the intervention in the intervention group compared to the control group (P> 0.05).
Conclusion
Implementation of educational intervention based on health belief model was effective for the personnel, and can enhance the preventative nutritional behaviors related to colorectal cancer.

Figure 1

Figure 2
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