Discipline of Public Health, The University of Adelaide, Adelaide, Australia.
PLoS One. 2013 Oct 14;8(10):e76111. doi: 10.1371/journal.pone.0076111. eCollection 2013.
This paper presents the development of the Complementary Feeding Utility Index (CFUI), a composite index aimed to measure adherence to infant feeding guidelines. Through an axiomatic characterization this paper shows the advantages in using the CFUI are the following: it avoids the use of arbitrary cut-offs, and by converting observed diet preferences into utilities, summing the score is meaningful. In addition, as the CFUI is designed to be scored continuously, it allows the transition from intake of beneficial foods (in low quantities) and intake of detrimental foods (in high quantities) to be more subtle. The paper first describes the rationale being the development of the CFUI and then elaborates on the methodology used to develop the CFUI, including the process of selecting the components. The methodology is applied to data collected from the Avon Longitudinal Study of Parents and Children to show the advantages of the CFUI over traditional diet index approaches. Unlike traditional approaches, the distribution of the CFUI does not peak towards mean value but distributes evenly towards the tails of the distribution.
本文提出了补充喂养实用指数（CFUI）的发展，这是一个旨在衡量婴儿喂养指南依从性的综合指数。通过公理化特征化，本文表明使用 CFUI 的优势在于：它避免了使用任意的截断点，并且通过将观察到的饮食偏好转换为效用，得分的总和是有意义的。此外，由于 CFUI 被设计为连续评分，它允许从有益食物（少量摄入）和有害食物（大量摄入）的摄入过渡更加微妙。本文首先描述了开发 CFUI 的基本原理，然后详细阐述了开发 CFUI 所使用的方法，包括选择成分的过程。该方法应用于从雅芳纵向父母与子女研究中收集的数据，以展示 CFUI 优于传统饮食指数方法的优势。与传统方法不同，CFUI 的分布不是向平均值峰值集中，而是向分布的尾部均匀分布。
