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document
Effectiveness of a theory-based intervention to increase colorectal cancer screening among Iranian health club members : a randomized trial . Colorectal cancer is the third most commonly diagnosed cancer and the fourth leading cause of death in the world . There are few published studies that have used theory-based interventions designed to increase colorectal cancer screening in community lay health organizations . The present study was guided by the theoretical concepts of the preventive health model . Twelve health clubs of a municipal district in Tehran were randomized to two study groups with equal ratio . The control group received usual services throughout the study while the intervention group also received a theory-based educational program on colorectal cancer screening plus a reminder call . Screening behavior , the main outcome , was assessed 4 months after randomization . A total of 360 members aged 50 and older from 12 health clubs completed a baseline survey . Participants in the intervention group reported increased knowledge of colorectal cancer and screening tests at 4 months follow-up ( p 's < .001 ) . Moreover , exposure to the theory-based intervention significantly improved self-efficacy , perceived susceptibility , efficacy of screening , social support , and intention to be screened for colorectal cancer , from baseline to 4 months follow-up ( p 's < .001 ) . The screening rate for colorectal cancer was significantly higher in the intervention group compared to the control group ( odds ratio = 15.93 , 95 % CI = 5.57 , 45.53 ) . Our theory-based intervention was found to have a significant effect on colorectal cancer screening use as measured by self-report . The findings could have implications for colorectal cancer screening program development and implementation in primary health care settings and through other community organizations .
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Intervention_Physical
theory-based intervention
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Intervention_Physical
theory-based interventions
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Intervention_Control
received usual services throughout the study
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Intervention_Other
received a theory-based educational program on colorectal cancer screening plus a reminder call
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Intervention_Educational
theory-based intervention
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Outcome_Mental
colorectal cancer screening
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Outcome_Mental
Screening behavior
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Outcome_Mental
increased knowledge of colorectal cancer and screening tests
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Outcome_Mental
improved self-efficacy , perceived susceptibility , efficacy of screening , social support , and intention to be screened for colorectal cancer
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Outcome_Mental
screening rate for colorectal cancer
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Outcome_Mental
colorectal cancer screening
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Participant_Condition
colorectal cancer screening
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Participant_Sample-size
members
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Participant_Sample-size
Twelve
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Participant_Sample-size
total of 360 members
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Participant_Age
aged 50 and older
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Participant_Sample-size
12