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基于Nova分类系统的巴西成年人的新型FFQ:开发,可复制性和验证
Evelyn Oliveira da Silva Frade1,2, Kamila Tiemann Gabe2, Caroline Dos Santos Costa2
1Postgraduate Program in Nutrition and Health, Department of Nutrition, School of Public Health, University of São Paulo (USP), São Paulo, Brazil.
Public health nutrition
|March 27, 2025
概括
新食物频率问卷 (Nova FFQ) 是一种经过验证的工具,用于评估巴西成年人按加工级别的食物消费. 它显示出强大的可重复性和实质性的一致性,根据食物摄入量量对个人进行分类.
科学领域:
- 营养科学 营养科学
- 饮食评估 饮食评估
- 公共卫生 公共卫生
背景情况:
- 饮食模式对公共健康至关重要.
- 根据加工程度对食品进行分类 (例如Nova分类) 在营养研究中越来越重要.
- 需要经过验证的工具来评估不同人群中基于食品加工的饮食摄入量.
研究的目的:
- 为巴西成年人开发和验证Nova FFQ (新食物频率问卷).
- 评估Nova FFQ的可复制性和标准有效性.
- 评估Nova FFQ根据加工水平的食物消费来分类个体的能力.
主要方法:
- 开发一种自主管理的,半量化食物频率问卷 (FFQ),使用国家食物摄入数据.
- 通过比较两个时间点的NovaFFQ估计来评估可重复性.
- 通过比较NovaFFQ估计数与多个24小时的饮食回忆来评估标准有效性.
- 统计分析包括类内相关系数 (ICC) 和流行率和偏差调整的kappa (PABAK).
主要成果:
- 诺瓦FFQ表现出强大的可复制性,所有诺瓦组的ICC为0.91.
- 标准有效性显示中度的ICC,从加工食品和超加工食品的0.61到未加工食品和微加工食品的0.65.
- 在所有食品加工类别的消费五分位数中对个人进行排名时,发现了实质性的一致性.
结论:
- 诺瓦FFQ是根据巴西成年人的食品加工程度评估食品消费模式的有效和可靠工具.
- 调查问卷特别有效地根据所有Nova食品组的消费水平对个人进行歧视.
- 诺瓦FFQ可以成为巴西营养流行病学和公共卫生研究的宝贵工具.
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