biostudies-literatureUnknown22(1)Coube M<h4>Background</h4>One of the primary objectives of the Brazilian health care system is to improve the health and well-being of all citizens. Since the establishment of the Unified Health System/Sistema Único de Saúde (SUS) in 1988, Brazil has made strides towards reducing inequalities in health care services utilisation. However, there are currently no comprehensive and up-to-date studies focused on inequalities in both curative and preventive health care services utilisation.<h4>Methods</h4>We evaluated data from the National Household Sample Survey and the Brazilian National Health Survey, which are two nationally representative studies that include findings from 1998, 2003, and 2008 and 2013 and 2019, respectively. We calculated Erreygers-corrected Concentration Indices (CInds) to evalInternational journal for equity in health25https://www.ebi.ac.uk/biostudies/studies/S-EPMC9893569biostudies-literaturePersistent inequalities in health care services utilisation in Brazil (1998-2019).PMC9893569Coube MNikoloski ZMossialos EMrejen MfalsePersistent inequalities in health care services utilisation in Brazil (1998-2019).<h4>Background</h4>One of the primary objectives of the Brazilian health care system is to improve the health and well-being of all citizens. Since the establishment of the Unified Health System/Sistema Único de Saúde (SUS) in 1988, Brazil has made strides towards reducing inequalities in health care services utilisation. However, there are currently no comprehensive and up-to-date studies focused on inequalities in both curative and preventive health care services utilisation.<h4>Methods</h4>We evaluated data from the National Household Sample Survey and the Brazilian National Health Survey, which are two nationally representative studies that include findings from 1998, 2003, and 2008 and 2013 and 2019, respectively. We calculated Erreygers-corrected Concentration Indices (CInds) to eval2023-01-01T00:00:00Z2023 Feb2026-06-03T17:09:13.69Z2025-05-29T19:45:38.915ZS-EPMC98935693673274910.1186/s12939-023-01828-3