Characteristics of composite deprivation indices used in public health: a scoping review protocol

Abstract Background: Deprivation index has become a more popular tool to rank levels of deprivation within different geographic areas. It is extensively used for monitoring health inequalities, evaluating health care services, developing and modifying health policies and programs, and allocating health resources equitably. In the current review, we will examine how in different countries deprivation indices were created. This is significant because indices have been used in public health for more than three decades. The first deprivation index was created in the UK in the late 1980s. A stock of knowledge and information about deprivation indices have been accumulated over this period. Our objectives are to explore the relevant literature to describe features of composite deprivation measures; create a list and classification of original deprivation indices. We will develop the classification of indices to systematize knowledge and improve the functional utility of the information. Moreover, the classification will provide an organized framework for planning and following through with the process of developing new deprivation measures.Methods: Any original deprivation index mentioned in peer-reviewed or grey literature documents will be eligible for inclusion if it assesses deprivation at a population level and used in relation to health. The study area will be limited to the geographic areas of North America, Europe, Australia, and New Zealand. PubMed and grey literature databases will be searched to identify all relevant studies, without publication date restriction. Papers published in any language will be included to avoid language bias. Papers will be screened for inclusion by two independent reviewers. Tables and a narrative summary will be used to describe features of deprivation indices. Diagrammatic form will be used to create the classification of deprivation indices.Discussion: The aim of creating a taxonomy is to systematize information related to the methodology for constructing and using deprivation indices in public health research and practice. Practically, the results of this study could facilitate finding a common language among researchers and specialists who create and use deprivation indices, thus helping the development and implementation of appropriate deprivation indices for different countries.