Influence of socioeconomic status on access to temporal artery biopsy and rates of biopsy positivity in patients with suspected giant cell arteritis

Abstract Background Data regarding the relationship between socioeconomic status (SES) and incidence of Giant Cell Arteritis (GCA) is conflicting. No previous studies have explored whether SES influences the likelihood of undergoing temporal artery biopsy (TAB). The aim of this study was to determin...

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Main Authors: Suellen Anne Lyne, Susan Lester, Oscar Kenneth Russell, Carlee Deanne Ruediger, Kathryn Dyer, Jem Ninan, Ernst Michael Shanahan, Catherine Louise Hill
Format: Article
Language:English
Published: BMC 2025-05-01
Series:BMC Rheumatology
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Online Access:https://doi.org/10.1186/s41927-025-00503-0
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author Suellen Anne Lyne
Susan Lester
Oscar Kenneth Russell
Carlee Deanne Ruediger
Kathryn Dyer
Jem Ninan
Ernst Michael Shanahan
Catherine Louise Hill
author_facet Suellen Anne Lyne
Susan Lester
Oscar Kenneth Russell
Carlee Deanne Ruediger
Kathryn Dyer
Jem Ninan
Ernst Michael Shanahan
Catherine Louise Hill
author_sort Suellen Anne Lyne
collection DOAJ
description Abstract Background Data regarding the relationship between socioeconomic status (SES) and incidence of Giant Cell Arteritis (GCA) is conflicting. No previous studies have explored whether SES influences the likelihood of undergoing temporal artery biopsy (TAB). The aim of this study was to determine whether SES influences access to TAB and rate of biopsy positivity in those with suspected GCA. Methods This retrospective study included consecutive patients who underwent TAB examined at SA Pathology between 2017 and 2022; age ≥ 50 years and resident in South Australia (SA). Patients’ addresses were used to identify precise geographical areas. Area-level SES was determined using Index of Relative Socioeconomic Advantage and Disadvantage (IRSAD) scores, derived from 2016 Census data. IRSAD scores were grouped into population quintiles and analysed by multinomial regression. Results 626 participants were included, of whom 155 (25%) were TAB positive. Those with positive TAB were older (76 v 72 years) and a smaller proportion were female (63% v 71%). There was a shift towards a lower SES for patients undergoing TAB, with 161 (26%) in the lowest quintile and 107 (17%) in the highest (plinear<0.001). However, SES was not associated with TAB positivity; 34/161 (21%) participants were TAB positive in the lowest quintile compared to 33/107 (31%) in the highest (p = 0.19). Conclusion SES did not influence incidence of GCA. However, those from lower SES population quintiles were more likely to undergo TAB at a State Pathology service provider. Encouragingly, this suggests there is no issue with access to TAB in SA based on SES.
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spelling doaj-art-dd1f4aaa15864312b7a70e772dfc798c2025-08-20T03:43:31ZengBMCBMC Rheumatology2520-10262025-05-01911610.1186/s41927-025-00503-0Influence of socioeconomic status on access to temporal artery biopsy and rates of biopsy positivity in patients with suspected giant cell arteritisSuellen Anne Lyne0Susan Lester1Oscar Kenneth Russell2Carlee Deanne Ruediger3Kathryn Dyer4Jem Ninan5Ernst Michael Shanahan6Catherine Louise Hill7School of Medicine, The University of AdelaideSchool of Medicine, The University of AdelaideSchool of Medicine, The University of AdelaideSchool of Medicine, The University of AdelaideSchool of Medicine, The University of AdelaideSchool of Medicine, The University of AdelaideFlinders Medical CentreSchool of Medicine, The University of AdelaideAbstract Background Data regarding the relationship between socioeconomic status (SES) and incidence of Giant Cell Arteritis (GCA) is conflicting. No previous studies have explored whether SES influences the likelihood of undergoing temporal artery biopsy (TAB). The aim of this study was to determine whether SES influences access to TAB and rate of biopsy positivity in those with suspected GCA. Methods This retrospective study included consecutive patients who underwent TAB examined at SA Pathology between 2017 and 2022; age ≥ 50 years and resident in South Australia (SA). Patients’ addresses were used to identify precise geographical areas. Area-level SES was determined using Index of Relative Socioeconomic Advantage and Disadvantage (IRSAD) scores, derived from 2016 Census data. IRSAD scores were grouped into population quintiles and analysed by multinomial regression. Results 626 participants were included, of whom 155 (25%) were TAB positive. Those with positive TAB were older (76 v 72 years) and a smaller proportion were female (63% v 71%). There was a shift towards a lower SES for patients undergoing TAB, with 161 (26%) in the lowest quintile and 107 (17%) in the highest (plinear<0.001). However, SES was not associated with TAB positivity; 34/161 (21%) participants were TAB positive in the lowest quintile compared to 33/107 (31%) in the highest (p = 0.19). Conclusion SES did not influence incidence of GCA. However, those from lower SES population quintiles were more likely to undergo TAB at a State Pathology service provider. Encouragingly, this suggests there is no issue with access to TAB in SA based on SES.https://doi.org/10.1186/s41927-025-00503-0Giant cell arteritisTemporal arteritisVasculitisHealth statusRisk factorsEmployment
spellingShingle Suellen Anne Lyne
Susan Lester
Oscar Kenneth Russell
Carlee Deanne Ruediger
Kathryn Dyer
Jem Ninan
Ernst Michael Shanahan
Catherine Louise Hill
Influence of socioeconomic status on access to temporal artery biopsy and rates of biopsy positivity in patients with suspected giant cell arteritis
BMC Rheumatology
Giant cell arteritis
Temporal arteritis
Vasculitis
Health status
Risk factors
Employment
title Influence of socioeconomic status on access to temporal artery biopsy and rates of biopsy positivity in patients with suspected giant cell arteritis
title_full Influence of socioeconomic status on access to temporal artery biopsy and rates of biopsy positivity in patients with suspected giant cell arteritis
title_fullStr Influence of socioeconomic status on access to temporal artery biopsy and rates of biopsy positivity in patients with suspected giant cell arteritis
title_full_unstemmed Influence of socioeconomic status on access to temporal artery biopsy and rates of biopsy positivity in patients with suspected giant cell arteritis
title_short Influence of socioeconomic status on access to temporal artery biopsy and rates of biopsy positivity in patients with suspected giant cell arteritis
title_sort influence of socioeconomic status on access to temporal artery biopsy and rates of biopsy positivity in patients with suspected giant cell arteritis
topic Giant cell arteritis
Temporal arteritis
Vasculitis
Health status
Risk factors
Employment
url https://doi.org/10.1186/s41927-025-00503-0
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