Differences in Response to a Dietary Intervention Between the General Population and First-Degree Relatives of Colorectal Cancer Patients
| Autor: | Melanie K. Bean, Patrica Carcaise-Edinboro, Diane B. Wilson, Hali Esinhart, Donna K. McClish |
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| Rok vydání: | 2014 |
| Předmět: |
Male
Rural Population Gerontology Health Knowledge Attitudes Practice Mediation (statistics) Population Medicine (miscellaneous) Health Promotion Article Cohort Studies Humans Medicine Family First-degree relatives Family history education Health Education Analysis of Variance education.field_of_study Nutrition and Dietetics business.industry Confounding Virginia Middle Aged Diet Risk perception Propensity score matching Female Colorectal Neoplasms business Cohort study |
| Zdroj: | Journal of Nutrition Education and Behavior. 46:376-383 |
| ISSN: | 1499-4046 |
| DOI: | 10.1016/j.jneb.2014.02.015 |
| Popis: | Objective To determine whether response to a dietary intervention is greater among people with family history of colorectal cancer (CRC) compared with a general population. Design Cohort study examining participants from 2 related studies. Setting Rural Virginia. Participants Seventy people with first-degree relatives with CRC and 113 participants from the intervention arm of a trial in the general population. Intervention Both studies implemented a low-intensity intervention delivered via telephone and mail, including low-literacy self-help booklets and personalized dietary feedback. Main Outcome Measures Fat, fiber, and fruit and vegetable behavior. Analysis Propensity score matching controlled for confounders. Mixed-model ANOVAs compared samples; mediation by perceived cancer risk was assessed. Results Participants in both groups significantly improved fat, fiber, and fruit and vegetable behavior at 1-month follow-up; there was significantly greater improvement in the general population sample. Cancer risk perception did not mediate the relationship between study sample and dietary change. Conclusions and Implications Contrary to expectations, first-degree relatives of CRC patients did not respond better to a dietary intervention than the general population, nor was risk perception related to dietary change. Given the role of diet in CRC risk, additional research should investigate targeted strategies to improve dietary intakes of people at higher cancer risk. |
| Databáze: | OpenAIRE |
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