Salimzadeh Hamideh, Delavari Alireza, Montazeri Ali, Mirzazadeh Ali
Health Education and Promotion Department, Health Faculty, Tehran University of Medical Sciences, Tehran, Iran.
Int J Prev Med. 2012 Jan;3(1):29-35.
Colorectal cancer (CRC) is the third most common malignancy in Iran. Limited data are available on knowledge and barriers in regard to CRC and screening tests in Iran. The aim of the study was to characterize knowledge, practice, and barriers toward CRC and its screening tests among an Iranian at-risk population.
This cross-sectional study was conducted with participation of 200 individuals of both genders aged 50 years or older in a teaching hospital in Tehran, Iran. Data were collected via face-to-face interviews. A questionnaire containing demographics; knowledge about CRC and screening tests; screening practice; and reasons for not being screened was administered. The reliability alpha for knowledge items was 0.52.
The age of the participants ranged from 50 to 83 years (mean 60.13). Overall, 11% of the respondents reported prior screening by either fecal occult blood test (6.5%) or colonoscopy (4.5%). The majority of individuals had poor knowledge although respondents with prior screening obtained slightly higher score in comparison with nonparticipants in screening (26.74 vs. 23.24; P<0.05). Four commonly cited reasons for not having CRC tests were "doctor did not recommend the test," "did not think it was needed," "never think of the test," and "no symptoms/problems" which were reported by 29%, 26%, 20%, and 17% of the participants, respectively.
It is necessary to design appropriate educational interventions to increase the general population's knowledge about CRC and screening before implementing preventive programs in Iran.
结直肠癌（CRC）是伊朗第三大常见恶性肿瘤。关于伊朗结直肠癌及筛查检测方面的知识和障碍，现有数据有限。本研究旨在描述伊朗高危人群对结直肠癌及其筛查检测的知识、实践情况和障碍。
本横断面研究在伊朗德黑兰一家教学医院中，纳入了200名年龄在50岁及以上的男女个体。通过面对面访谈收集数据。发放了一份包含人口统计学信息、关于结直肠癌和筛查检测的知识、筛查实践以及未进行筛查原因的问卷。知识项目的信度α为0.52。
参与者年龄在50至83岁之间（平均60.13岁）。总体而言，11%的受访者报告曾通过粪便潜血试验（6.5%）或结肠镜检查（4.5%）进行过筛查。大多数个体知识水平较差，不过与未参与筛查者相比，曾进行过筛查的受访者得分略高（26.74对23.24；P<0.05）。未进行结直肠癌检测的四个常见原因分别是“医生未推荐检测”“认为不需要检测”“从未考虑过检测”以及“没有症状/问题”，分别有29%、26%、20%和17%的参与者报告了这些原因。
在伊朗实施预防项目之前，有必要设计适当的教育干预措施，以提高普通人群对结直肠癌和筛查的认识。
