Abstract

Health inequalities in respiratory disease are widespread, and monitoring them is important for advocacy, the design and delivery of health services, and informing wider health policy. In this chapter, we introduce the different ways in which health inequalities can be quantified, including measures that quantify absolute and relative inequalities, and those that measure gaps between groups or differences across the entire social gradient. We consider the strengths and limitations of these different approaches and highlight things to look out for when reading a paper on health inequalities in respiratory health. These include how common the outcome is and whether other factors have been adjusted for, as both can have a crucial impact on interpretation and can lead to misleading conclusions.

Cite as: Pearce A, Katikireddi SV. How to read a paper about inequality in respiratory disease: basic epidemiological principles and how inequalities are measured. In: Sinha IP, Lee A, Katikireddi SV, et al., eds. Inequalities in Respiratory Health (ERS Monograph). Sheffield, European Respiratory Society, 2023; pp. 1–10 [https://doi.org/10.1183/2312508X.10003122].