Koutoukidis, D;
Lopes, S;
Croker, H;
Atkins, L;
Knobf, MK;
Lanceley, A;
Beeken, R;
(2018)
Use of intervention mapping to adapt a health behavior change intervention for endometrial cancer survivors: the Shape-Up following cancer treatment program.
BMC Public Health
, 18
, Article 415. 10.1186/s12889-018-5329-5.
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Abstract
Background: About 80% of endometrial cancer survivors (ECS) are overweight or obese and have sedentary behaviors. Lifestyle behavior interventions are promising for improving dietary and physical activity behaviors, but the constructs associated with their effectiveness are often inadequately reported. The aim of this study was to systematically adapt an evidence-based behavior change program to improve healthy lifestyle behaviors in ECS. Methods: Following a review of the literature, focus groups and interviews were conducted with ECS (n=16). An intervention mapping protocol was used for the program adaptation, which consisted of six steps: a needs assessment, formulation of matrices of change objectives, selection of theoretical methods and practical applications, program production, adoption and implementation planning, and evaluation planning. Social Cognitive Theory and Control Theory guided the adaptation of the intervention. Results: The process consisted of eight 90-minute group sessions focusing on shaping outcome expectations, knowledge, self-efficacy, and goals about healthy eating and physical activity. The adapted performance objectives included establishment of regular eating, balanced diet, and portion sizes, reduction in sedentary behaviors, increase in lifestyle and organized activities, formulation of a discrepancy-reducing feedback loop for all above behaviors, and trigger management. Information on managing fatigue and bowel issues unique to ECS were added. Conclusions: Systematic intervention mapping provided a framework to design a cancer survivorcentered lifestyle intervention. ECS welcomed the intervention and provided essential feedback for its adaptation. The program has been evaluated through a randomized controlled trial.
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