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西斯万食品摄入量标记:巴西的结构和测量不变性
Bárbara Hatzlhoffer Lourenço1, Bianca de Melo Guedes2, Thanise Sabrina Souza Santos3
1Universidade de São Paulo . Faculdade de Saúde Pública . Departamento de Nutrição . São Paulo , SP , Brazil.
Revista de saude publica
|August 16, 2023
概括
食品和营养监测系统 (Sisvan) 的食物摄入标记可靠地测量了巴西各地的健康和不健康的饮食模式. 这种结构在区域,年龄组和时间上是一致的,支持监测和健康指导.
科学领域:
- 营养流行病学 营养流行病学
- 公共卫生监督是对公共卫生的监督.
- 饮食评估 饮食评估
背景情况:
- 粮食和营养监测系统 (Sisvan) 收集巴西人对食物摄入量的数据.
- 了解Sisvan的食物摄入标记物的内部结构对于准确的饮食评估至关重要.
- 以前的分析可能没有完全探索跨不同人群和时间的测量特性.
研究的目的:
- 描述Sisvan食物摄入标记的内部结构,用于两岁以上的人.
- 为了研究这些标记物的测量不变性跨越巴西宏观区域,生命阶段,并纵向随时间推移.
主要方法:
- 在大型数据集上进行了探索性和确认性因子分析 (2015年n=298,253).
- 多组确认因子分析评估了跨宏观区域和生命阶段的配置,度量和标量不变性.
- 用2015年至2019年的数据评估了纵向不变性 (n=4,578,960).
主要成果:
- 一个二维模型证明了可接受的合适性,区分超加工食品和未加工/最小加工食品.
- 在巴西的宏观区域和生命阶段 (配置不变) 中,二维结构是不变的.
- 各组物品的重量和尺度属性均,证实了尺度和标量不变性.
结论:
- 西斯万食品摄入量标记物的内部结构与其概念基础保持一致,反映了健康和不健康的饮食模式.
- 这些因素在不同的人口群体中的稳定性和随着时间的推移验证了它们的使用.
- 这些发现增强了Sisvan标记在巴西统一卫生系统内的研究,监测和健康指导方面的实用性.
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