Inequalities in SARS-CoV-2 case rates by ethnicity, religion, measures of socioeconomic position, English proficiency, and self-reported disability: cohort study of 39 million people in England during the alpha and delta waves

<p><strong>Objective</strong> To examine sociodemographic inequalities in people with SARS-CoV-2 during the second (alpha) and third (delta) waves of the covid-19 pandemic.</p> <p><strong>Design</strong> Retrospective, population based cohort study.</p&g...

Full description

Bibliographic Details
Main Authors: Larsen, T, Bosworth, ML, Ayoubkhani, D, Schofield, R, Ali, R, Khunti, K, Walker, AS, Glickman, M, Harrison, C, Nafilyan, V
Format: Journal article
Language:English
Published: BMJ Publishing Group 2023
_version_ 1797109482612850688
author Larsen, T
Bosworth, ML
Ayoubkhani, D
Schofield, R
Ali, R
Khunti, K
Walker, AS
Glickman, M
Harrison, C
Nafilyan, V
author_facet Larsen, T
Bosworth, ML
Ayoubkhani, D
Schofield, R
Ali, R
Khunti, K
Walker, AS
Glickman, M
Harrison, C
Nafilyan, V
author_sort Larsen, T
collection OXFORD
description <p><strong>Objective</strong> To examine sociodemographic inequalities in people with SARS-CoV-2 during the second (alpha) and third (delta) waves of the covid-19 pandemic.</p> <p><strong>Design</strong> Retrospective, population based cohort study.</p> <p><strong>Setting</strong> Resident population of England.</p> <p><strong>Participants</strong> 39 006 194 people aged 10 years and older who were enumerated in the 2011 census, registered with the NHS, and alive on 1 September 2020.</p> <p><strong>Main outcome measures</strong> Age standardised SARS-CoV-2 case rates (ie, the number of people who received a positive test result per 100 000 person weeks at risk) during the second wave (1 September 2020 to 22 May 2021) or third wave (23 May to 10 December 2021) of the pandemic. Age standardised rates were calculated by sociodemographic characteristics and adjusted rate ratios were estimated using generalised linear regression models with a Poisson distribution (models were adjusted for covariates including sex, age, geographical variables, and sociodemographic characteristics).</p> <p><strong>Results</strong> During the study period, 5 767 584 people (14.8% of the study population) tested positive for SARS-CoV-2. In the second wave, the fully adjusted relative risks of having a positive test were highest for the Bangladeshi and Pakistani ethnic groups compared with the white British group, with rate ratios of 1.75 (95% confidence interval 1.73 to 1.77) and 1.69 (1.68 to 1.70), respectively. Muslim and Sikh religious groups had fully adjusted rate ratios of 1.51 (1.50 to 1.51) and 1.64 (1.63 to 1.66), respectively, compared with the Christian group. Greater area deprivation, disadvantaged socioeconomic position, living in a care home, and low English language proficiency were also associated with higher relative risk of having a positive test. However, the inequalities among groups varied over time. Being Christian, white British, without a disability, and from a more advantaged socioeconomic position were associated with increased relative risk of testing positive during the third wave.</p> <p><strong>Conclusion</strong> Research is urgently needed to understand the large sociodemographic inequalities in SARS-CoV-2 case rates in order to inform policy interventions in future waves or pandemics.</p>
first_indexed 2024-03-07T07:42:33Z
format Journal article
id oxford-uuid:7782ed03-0821-417d-98d2-0443ecc89707
institution University of Oxford
language English
last_indexed 2024-03-07T07:42:33Z
publishDate 2023
publisher BMJ Publishing Group
record_format dspace
spelling oxford-uuid:7782ed03-0821-417d-98d2-0443ecc897072023-05-09T15:05:29ZInequalities in SARS-CoV-2 case rates by ethnicity, religion, measures of socioeconomic position, English proficiency, and self-reported disability: cohort study of 39 million people in England during the alpha and delta wavesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7782ed03-0821-417d-98d2-0443ecc89707EnglishSymplectic ElementsBMJ Publishing Group2023Larsen, TBosworth, MLAyoubkhani, DSchofield, RAli, RKhunti, KWalker, ASGlickman, MHarrison, CNafilyan, V<p><strong>Objective</strong> To examine sociodemographic inequalities in people with SARS-CoV-2 during the second (alpha) and third (delta) waves of the covid-19 pandemic.</p> <p><strong>Design</strong> Retrospective, population based cohort study.</p> <p><strong>Setting</strong> Resident population of England.</p> <p><strong>Participants</strong> 39 006 194 people aged 10 years and older who were enumerated in the 2011 census, registered with the NHS, and alive on 1 September 2020.</p> <p><strong>Main outcome measures</strong> Age standardised SARS-CoV-2 case rates (ie, the number of people who received a positive test result per 100 000 person weeks at risk) during the second wave (1 September 2020 to 22 May 2021) or third wave (23 May to 10 December 2021) of the pandemic. Age standardised rates were calculated by sociodemographic characteristics and adjusted rate ratios were estimated using generalised linear regression models with a Poisson distribution (models were adjusted for covariates including sex, age, geographical variables, and sociodemographic characteristics).</p> <p><strong>Results</strong> During the study period, 5 767 584 people (14.8% of the study population) tested positive for SARS-CoV-2. In the second wave, the fully adjusted relative risks of having a positive test were highest for the Bangladeshi and Pakistani ethnic groups compared with the white British group, with rate ratios of 1.75 (95% confidence interval 1.73 to 1.77) and 1.69 (1.68 to 1.70), respectively. Muslim and Sikh religious groups had fully adjusted rate ratios of 1.51 (1.50 to 1.51) and 1.64 (1.63 to 1.66), respectively, compared with the Christian group. Greater area deprivation, disadvantaged socioeconomic position, living in a care home, and low English language proficiency were also associated with higher relative risk of having a positive test. However, the inequalities among groups varied over time. Being Christian, white British, without a disability, and from a more advantaged socioeconomic position were associated with increased relative risk of testing positive during the third wave.</p> <p><strong>Conclusion</strong> Research is urgently needed to understand the large sociodemographic inequalities in SARS-CoV-2 case rates in order to inform policy interventions in future waves or pandemics.</p>
spellingShingle Larsen, T
Bosworth, ML
Ayoubkhani, D
Schofield, R
Ali, R
Khunti, K
Walker, AS
Glickman, M
Harrison, C
Nafilyan, V
Inequalities in SARS-CoV-2 case rates by ethnicity, religion, measures of socioeconomic position, English proficiency, and self-reported disability: cohort study of 39 million people in England during the alpha and delta waves
title Inequalities in SARS-CoV-2 case rates by ethnicity, religion, measures of socioeconomic position, English proficiency, and self-reported disability: cohort study of 39 million people in England during the alpha and delta waves
title_full Inequalities in SARS-CoV-2 case rates by ethnicity, religion, measures of socioeconomic position, English proficiency, and self-reported disability: cohort study of 39 million people in England during the alpha and delta waves
title_fullStr Inequalities in SARS-CoV-2 case rates by ethnicity, religion, measures of socioeconomic position, English proficiency, and self-reported disability: cohort study of 39 million people in England during the alpha and delta waves
title_full_unstemmed Inequalities in SARS-CoV-2 case rates by ethnicity, religion, measures of socioeconomic position, English proficiency, and self-reported disability: cohort study of 39 million people in England during the alpha and delta waves
title_short Inequalities in SARS-CoV-2 case rates by ethnicity, religion, measures of socioeconomic position, English proficiency, and self-reported disability: cohort study of 39 million people in England during the alpha and delta waves
title_sort inequalities in sars cov 2 case rates by ethnicity religion measures of socioeconomic position english proficiency and self reported disability cohort study of 39 million people in england during the alpha and delta waves
work_keys_str_mv AT larsent inequalitiesinsarscov2caseratesbyethnicityreligionmeasuresofsocioeconomicpositionenglishproficiencyandselfreporteddisabilitycohortstudyof39millionpeopleinenglandduringthealphaanddeltawaves
AT bosworthml inequalitiesinsarscov2caseratesbyethnicityreligionmeasuresofsocioeconomicpositionenglishproficiencyandselfreporteddisabilitycohortstudyof39millionpeopleinenglandduringthealphaanddeltawaves
AT ayoubkhanid inequalitiesinsarscov2caseratesbyethnicityreligionmeasuresofsocioeconomicpositionenglishproficiencyandselfreporteddisabilitycohortstudyof39millionpeopleinenglandduringthealphaanddeltawaves
AT schofieldr inequalitiesinsarscov2caseratesbyethnicityreligionmeasuresofsocioeconomicpositionenglishproficiencyandselfreporteddisabilitycohortstudyof39millionpeopleinenglandduringthealphaanddeltawaves
AT alir inequalitiesinsarscov2caseratesbyethnicityreligionmeasuresofsocioeconomicpositionenglishproficiencyandselfreporteddisabilitycohortstudyof39millionpeopleinenglandduringthealphaanddeltawaves
AT khuntik inequalitiesinsarscov2caseratesbyethnicityreligionmeasuresofsocioeconomicpositionenglishproficiencyandselfreporteddisabilitycohortstudyof39millionpeopleinenglandduringthealphaanddeltawaves
AT walkeras inequalitiesinsarscov2caseratesbyethnicityreligionmeasuresofsocioeconomicpositionenglishproficiencyandselfreporteddisabilitycohortstudyof39millionpeopleinenglandduringthealphaanddeltawaves
AT glickmanm inequalitiesinsarscov2caseratesbyethnicityreligionmeasuresofsocioeconomicpositionenglishproficiencyandselfreporteddisabilitycohortstudyof39millionpeopleinenglandduringthealphaanddeltawaves
AT harrisonc inequalitiesinsarscov2caseratesbyethnicityreligionmeasuresofsocioeconomicpositionenglishproficiencyandselfreporteddisabilitycohortstudyof39millionpeopleinenglandduringthealphaanddeltawaves
AT nafilyanv inequalitiesinsarscov2caseratesbyethnicityreligionmeasuresofsocioeconomicpositionenglishproficiencyandselfreporteddisabilitycohortstudyof39millionpeopleinenglandduringthealphaanddeltawaves