School of Psychology, University of Newcastle, Newcastle, NSW, Australia.
Int J Behav Nutr Phys Act. 2013 Apr 8;10:43. doi: 10.1186/1479-5868-10-43.
Consumption of non-core foods in childhood is associated with excessive weight gain in childhood. Parents play a vital role in establishing healthy diet behaviours in young children. The aim of this study was to assess the effectiveness of a telephone-based intervention in reducing child consumption of non-core foods, and to examine parent and home food environment mediators of change in child consumption.
The 'Healthy Habits' trial utilised a clustered randomised controlled design.
SETTING/PARTICIPANTS: Parents were recruited from 30 preschools (N=394 participants, mean age 35.2±5.6 years). Parents randomized to the intervention group received four telephone contacts and print materials. Parents allocated to the control condition receive generic print materials only. Non-core food consumption was assessed using a validated child dietary questionnaire at baseline, 2 and 6 months post recruitment in 2010.
The intervention was effective in reducing child consumption of non-core foods at 2 months (intention to treat analysis: z=-2.83, p<.01), however this effect was not maintained at 6 months. Structural equation modelling using 2 month data indicated that child access to non-core foods in the home and child feeding strategies mediated the effect of the intervention.
The telephone-based intervention shows promise in improving short term dietary behaviour in preschool age children, however further development is needed to sustain the effect in the long-term.
Australian Clinical Trials Registry: ACTRN12609000820202.
儿童时期食用非核心食物与儿童期体重过度增加有关。父母在培养幼儿健康饮食行为方面发挥着至关重要的作用。本研究旨在评估基于电话的干预措施在减少儿童食用非核心食物方面的有效性，并检验父母和家庭食物环境变化对儿童食用非核心食物的中介作用。
“健康习惯”试验采用了聚类随机对照设计。
设置/参与者：从 30 所幼儿园招募了家长（N=394 名参与者，平均年龄 35.2±5.6 岁）。随机分配到干预组的家长接受了四次电话联系和印刷材料。分配到对照组的家长只收到通用的印刷材料。在 2010 年招募后，使用经过验证的儿童饮食问卷在基线、2 个月和 6 个月时评估非核心食物的消耗情况。
干预措施在 2 个月时有效减少了儿童对非核心食物的消耗（意向治疗分析：z=-2.83，p<.01），但这种效果在 6 个月时并未维持。使用 2 个月的数据进行结构方程建模表明，家庭中非核心食物的可及性和儿童喂养策略中介了干预的效果。
基于电话的干预措施在改善学龄前儿童短期饮食行为方面显示出前景，但需要进一步发展以维持长期效果。
澳大利亚临床试验注册处：ACTRN12609000820202。
