The income gradient in COVID-19 mortality and hospitalisation: An observational study with social security administrative records in Mexico.
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ABSTRACT: Background
The COVID-19 pandemic revealed large structural inequalities that led to disparities in health outcomes related to socioeconomic status. So far, most of the evidence is based on aggregated data or simulations with individual data, which point to various possible mechanisms behind the association. To date, there have been no studies regarding an income gradient in COVID-19 mortality based on individual-level data and adjusting for comorbidities or access to healthcare.Methods
In this paper, we use linked employee-patient data for patients tested for COVID-19 at the Mexican Institute of Social Security. We estimate the association of the probability of dying with income centiles, using a probit estimation and adjusting for COVID-19 diagnosis, sociodemographic variables, and comorbidities.Findings
After controlling for all these variables, we find that persons in the lowest income decile still had a probability of dying from COVID-19 five times greater than those at the top decile.Interpretation
Our results imply that the association between income and COVID outcomes is not explained by the prevalence of comorbidities or by a lack of access to healthcare among the low-income population.Funding
This study was not supported by any external funding source.
SUBMITTER: Arceo-Gomez EO
PROVIDER: S-EPMC8578731 | biostudies-literature |
REPOSITORIES: biostudies-literature
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