开发和验证基于照片的仪器来评估营养素质:NUTLY项目
Sofia Sousa1, Gabriela Albuquerque1, Milton Severo2
1EPIUnit - Instituto de Saúde Pública da Universidade do Porto, Portugal; Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Portugal.
Appetite
|April 28, 2024
概括
一种新的基于照片的工具,即营养素质素养 (NUTLY) 尺度,被开发用于评估成年人的实际食物选择技能. NUTLY被证明是营养素质的有效和可靠的衡量标准,它区分了充足和不足的水平.
科学领域:
- 营养科学 营养科学
- 衡量健康识字能力的方法
- 心理测量 心理测量 心理测量
背景情况:
- 传统的营养素质评估往往侧重于理论知识,可能没有反映出做出明智的食物选择的实际技能.
- 需要有效可靠的工具来衡量功能营养素养,特别是使用与日常食物选择相关的视觉辅助工具.
研究的目的:
- 开发和验证一个以照片为基础的仪器,称为营养素养 (NUTLY),用于评估葡萄牙成年人的营养素养.
- 评估NUTLY尺度的心理测量特性,包括其维度,内部一致性,构造有效性和测试-重新测试可靠性.
主要方法:
- 使用专家和普通人的评估开发了NUTLY尺度,然后对多样化的成年人样本 (n=329) 进行了应用.
- 统计分析包括潜伏特征模型的维度,Cronbach的alpha的内部一致性,并与现有的措施 (医疗术语识别测试,最新的生命体征) 进行比较,以建立有效性.
- 用接收器操作特征 (ROC) 分析来确定足够的营养素养的切断分数,并评估了测试-重试可靠性 (n=158).
主要成果:
- 最终的NUTLY尺度是单维的,包括48个项目 (33能量,15) 具有良好的内部一致性 (α=0.74).
- 在拥有高等教育和营养/健康培训的人群中观察到较高的NUTLY分数,以及根据最新的生命体征识字能力充足的人群.
- 充足的营养素养的最佳切线分数被定义为NUTLY ≥35,表明高灵敏度 (89.3%) 和特异性 (93.7%).
- 试验重复试验的可靠性很高 (ICC=0.77).
结论:
- 营养素养 (NUTLY) 尺度是衡量成人实际营养素养的有效和可靠工具.
- NUTLY有效地评估了根据能量和含量区分食物的能力,反映了对健康食物选择至关重要的技能.
- 这种基于照片的仪器为评估不同人群的营养素质提供了一种实际方法.
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