Bassett-Gunter Rebecca L, Levy-Milne Ryna, Naylor Patti Jean, Symons Downs Danielle, Benoit Cecilia, Warburton Darren E R, Blanchard Chris M, Rhodes Ryan E
School of Kinesiology and Health Science, York University, Toronto, Ontario, Canada.
British Columbia Cancer Agency, Vancouver, British Columbia, Canada.
J Nutr Educ Behav. 2015 May-Jun;47(3):216-24. doi: 10.1016/j.jneb.2015.01.003. Epub 2015 Mar 18.
To examine the relationship between Theory of Planned Behavior (TPB) beliefs and eating behavior, explore which beliefs have the greatest association with eating behavior, and explore differences between adults without children and first-time parents.
Longitudinal evaluation via questionnaires and food records at baseline and 6 and 12 months.
Couples without children (n = 72) and first-time parents (n = 100).
fruit and vegetable consumption and fat consumption.
TPB beliefs.
Pearson correlations between TPB beliefs and eating behavior; exploratory data reduction via linear regression.
Control beliefs were associated with eating behavior (r = .26-.46; P < .05). After controlling for past behavior, control beliefs were associated with eating behavior for first-time parents only. Control beliefs regarding preparation and time had the strongest associations with fruit and vegetable consumption for mothers (β = .26; P < .05) and fathers (β = .38; P < .01). The absence of a ceiling effect for control beliefs suggests room for improvement via intervention.
Interventions guided by TPB should target control beliefs to enhance healthy eating among new parents. Strategies (eg, individual, environmental, policy) to enhance control beliefs regarding healthy eating despite limited time and opportunity for preparation may be particularly valuable.
研究计划行为理论（TPB）信念与饮食行为之间的关系，探索哪些信念与饮食行为的关联最大，并探讨无子女成年人与初为人父母者之间的差异。
通过在基线、6个月和12个月时进行问卷调查和食物记录进行纵向评估。
无子女夫妇（n = 72）和初为人父母者（n = 100）。
水果和蔬菜摄入量以及脂肪摄入量。
TPB信念。
TPB信念与饮食行为之间的Pearson相关性；通过线性回归进行探索性数据简化。
控制信念与饮食行为相关（r = 0.26 - 0.46；P < 0.05）。在控制过去的行为后，控制信念仅与初为人父母者的饮食行为相关。母亲（β = 0.26；P < 0.05）和父亲（β = 0.38；P < 0.01）关于准备和时间的控制信念与水果和蔬菜摄入量的关联最强。控制信念不存在天花板效应表明通过干预有改善的空间。
以TPB为指导的干预措施应针对控制信念，以促进新父母的健康饮食。尽管准备时间和机会有限，但增强关于健康饮食的控制信念的策略（如个人、环境、政策方面的策略）可能特别有价值。
