Time-sensitive testing pressures and COVID-19 outcomes: are socioeconomic inequalities over the first year of the pandemic explained by selection bias?
Time-sensitive testing pressures and COVID-19 outcomes: are socioeconomic inequalities over the first year of the pandemic explained by selection bias?
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DOI:
10.1186/s12889-023-16767-5
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发表时间:
2023-09-26
影响因子:
4.5
通讯作者:
Griffith, Gareth J.
中科院分区:
文献类型:
--
作者:
Carter, Alice R.;Clayton, Gemma L.;Borges, M. Carolina;Howe, Laura D.;Hughes, Rachael A.;Smith, George Davey;Lawlor, Deborah A.;Tilling, Kate;Griffith, Gareth J.
There are many ways in which selection bias might impact COVID-19 research. Here we focus on selection for receiving a polymerase-chain-reaction (PCR) SARS-CoV-2 test and how known changes to selection pressures over time may bias research into COVID-19 infection. Using UK Biobank (N = 420,231; 55% female; mean age = 66.8 [SD = 8·11]) we estimate the association between socio-economic position (SEP) and (i) being tested for SARS-CoV-2 infection versus not being tested (ii) testing positive for SARS-CoV-2 infection versus testing negative and (iii) testing negative for SARS-CoV-2 infection versus not being tested. We construct four distinct time-periods between March 2020 and March 2021, representing distinct periods of testing pressures and lockdown restrictions and specify both time-stratified and combined models for each outcome. We explore potential selection bias by examining associations with positive and negative control exposures. The association between more disadvantaged SEP and receiving a SARS-CoV-2 test attenuated over time. Compared to individuals with a degree, individuals whose highest educational qualification was a GCSE or equivalent had an OR of 1·27 (95% CI: 1·18 to 1·37) in March-May 2020 and 1·13 (95% CI: 1.·10 to 1·16) in January-March 2021. The magnitude of the association between educational attainment and testing positive for SARS-CoV-2 infection increased over the same period. For the equivalent comparison, the OR for testing positive increased from 1·25 (95% CI: 1·04 to 1·47), to 1·69 (95% CI: 1·55 to 1·83). We found little evidence of an association between control exposures, and any considered outcome. The association between SEP and SARS-CoV-2 testing changed over time, highlighting the potential of time-specific selection pressures to bias analyses of COVID-19. Positive and negative control analyses suggest that changes in the association between SEP and SARS-CoV-2 infection over time likely reflect true increases in socioeconomic inequalities. The online version contains supplementary material available at 10.1186/s12889-023-16767-5.
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影响因子:
5
作者:
Fry A;Littlejohns TJ;Sudlow C;Doherty N;Adamska L;Sprosen T;Collins R;Allen NE
通讯作者:
Allen NE
DOI:
10.1097/ede.0000000000000504
发表时间:
2016-09
期刊:
Epidemiology (Cambridge, Mass.)
影响因子:
--
作者:
Arnold BF;Ercumen A;Benjamin-Chung J;Colford JM Jr
通讯作者:
Colford JM Jr
DOI:
10.1097/ede.0b013e3181d61eeb
发表时间:
2010-05
期刊:
Epidemiology (Cambridge, Mass.)
影响因子:
--
作者:
Lipsitch M;Tchetgen Tchetgen E;Cohen T
通讯作者:
Cohen T
影响因子:
6.3
作者:
Khalatbari-Soltani, Saman;Cumming, Robert G.;Kelly-Irving, Michelle
通讯作者:
Kelly-Irving, Michelle
DOI:
10.1161/atvbaha.119.313658
发表时间:
2020-03-01
影响因子:
8.7
作者:
Groot, Hilde E.;Sierra, Laura E. Villegas;van der Harst, Pim
通讯作者:
van der Harst, Pim