Improving low fruit and vegetable intake in children: Findings from a system dynamics, community group model building study
Improving low fruit and vegetable intake in children: Findings from a system dynamics, community group model building study
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DOI：
10.1371/journal.pone.0221107
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发表时间：
2019-08-15
期刊：
影响因子：
3.7
通讯作者：
Swinburn, Boyd
中科院分区：
文献类型：
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作者：
Gerritsen, Sarah;Renker-Darby, Ana;Swinburn, Boyd
全球许多儿童不符合政府的每日水果和蔬菜摄入量指南，在新西兰，对蔬菜摄入量建议的遵守率正在下降。本研究旨在确定儿童满足水果和蔬菜（FV）指南的系统性障碍，并在当地社区内采取可持续行动，以改善儿童的FV摄入量。采用定性系统动力学方法建立社区群体模型。该研究小组与卫生部资助的预防计划Healthy Families Waitakere合作，从新西兰西奥克兰的一个低收入，种族多样化的社区招募了17名参与者（包括学生，家长，教师，社区领袖，当地零售商和健康促进者）。举办了三个小组模型建设讲习班，在此期间创建了一个系统图，并通过考虑系统中的因果路径和强化循环来确定行动。参与者确定的儿童FV摄入的障碍是社区中快餐店的饱和和这些产品的无处不在的营销，与快餐相比，新鲜农产品的成本高，父母几乎没有时间准备食物，加上烹饪技能和知识下降。确定了通过改善当地食品环境来提高儿童维生素摄入量的若干行动，将由一个有社区领导人参加的协作小组进一步共同设计和测试。该项目突出了群体模型建设的有效性，使当地社区参与系统变革，以改善儿童营养，并提供了未来的定性系统动力学研究的蓝图。
Many children globally do not meet government guidelines for daily fruit and vegetable intake, and in New Zealand, adherence to the vegetable intake recommendation is declining. This study aimed to identify systemic barriers to children meeting fruit and vegetable (FV) guidelines and generate sustainable actions within a local community to improve children's FV intake. A qualitative system dynamics method of community group model building was used. The research team partnered with Healthy Families Waitakere, a Ministry of Health funded prevention initiative, to recruit 17 participants (including students, parents, teachers, community leaders, local retailers and health promoters) from a low-income, ethnically-diverse community in West Auckland, New Zealand. Three group model building workshops were held during which a systems map was created and used to identify actions by considering causal pathways and reinforcing loops in the system. Barriers to children's FV intake identified by participants were the saturation of fast-food outlets in the community and ubiquitous marketing of these products, the high cost of fresh produce compared to fast food, and parents having little time for food preparation plus declining cooking skills and knowledge. Several actions to improve children's FV intake by improving the local food environment were identified, which will be co-designed further and tested by a collaborative group involving community leaders. This project highlights the effectiveness of group model building for engaging a local community in systems change to improve child nutrition, and supplies a blueprint for future qualitative system dynamics research.