Dowd A J, Jung M E, Chen M Y, Beauchamp M R
School of Health and Exercise Sciences, The University of British Columbia at Okanagan, Kelowna, BC, Canada.
Department of Education and Counselling Psychology, The University of British Columbia, Vancouver, BC, Canada.
J Hum Nutr Diet. 2016 Jun;29(3):391-8. doi: 10.1111/jhn.12321. Epub 2015 Apr 28.
Coeliac disease is a chronic autoimmune disease that requires strict adherence to a gluten-free diet. However, strict adherence to a gluten-free diet is difficult, with findings from a recent review suggesting that up to 42% of individuals with coeliac disease do not eat a strict gluten-free diet.
The present study aimed to examine psychosocial predictors of adherence (purposeful and accidental) to a gluten-free diet among adults with coeliac disease over a 1-month period. In this longitudinal study, 212 North American adults with coeliac disease completed online questionnaires at two time points, baseline and 1 month later.
The results revealed that intentions partially mediated the effects of symptom severity, self-regulatory efficacy, planning and knowledge on purposeful gluten consumption. Intentions did not mediate the effects of severity, response cost, self-regulatory efficacy, planning and knowledge for accidental gluten consumption but, interestingly, self-regulatory efficacy directly predicted fewer accidental incidents of gluten-consumption.
These findings delineate the differential psychological processes in understanding accidental and purposeful gluten consumption among adults with coeliac disease and emphasise the importance of bolstering self-regulatory efficacy beliefs to prevent accidental and purposeful consumption of gluten.
乳糜泻是一种慢性自身免疫性疾病，需要严格坚持无麸质饮食。然而，严格坚持无麸质饮食很困难，最近一项综述的结果表明，高达42%的乳糜泻患者没有严格遵循无麸质饮食。
本研究旨在调查成年乳糜泻患者在1个月内坚持（有意和无意）无麸质饮食的心理社会预测因素。在这项纵向研究中，212名北美成年乳糜泻患者在两个时间点，即基线和1个月后，完成了在线问卷调查。
结果显示，意图部分介导了症状严重程度、自我调节效能、计划和知识对有意食用麸质的影响。意图并未介导严重程度、反应代价、自我调节效能、计划和知识对意外食用麸质的影响，但有趣的是，自我调节效能直接预测了较少的意外麸质食用事件。
这些发现描绘了成年乳糜泻患者在理解意外和有意食用麸质方面的不同心理过程，并强调了增强自我调节效能信念以预防意外和有意食用麸质的重要性。
