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Association of socioeconomic deprivation with asthma care, outcomes, and deaths in Wales: A 5-year national linked primary and secondary care cohort study

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  • Mohammad A Alsallakh
  • Sarah E Rodgers
  • Ronan A Lyons
  • Aziz Sheikh
  • Gwyneth A Davies

Abstract

Background: Socioeconomic deprivation is known to be associated with worse outcomes in asthma, but there is a lack of population-based evidence of its impact across all stages of patient care. We investigated the association of socioeconomic deprivation with asthma-related care and outcomes across primary and secondary care and with asthma-related death in Wales. Methods and findings: We constructed a national cohort, identified from 76% (2.4 million) of the Welsh population, of continuously treated asthma patients between 2013 and 2017 using anonymised, person-level, linked, routinely collected primary and secondary care data in the Secure Anonymised Information Linkage (SAIL) Databank. We investigated the association between asthma-related health service utilisation, prescribing, and deaths with the 2011 Welsh Index of Multiple Deprivation (WIMD) and its domains. We studied 106,926 patients (534,630 person-years), 56.3% were female, with mean age of 47.5 years (SD = 20.3). Compared to the least deprived patients, the most deprived patients had slightly fewer total asthma-related primary care consultations per patient (incidence rate ratio [IRR] = 0.98, 95% CI 0.97–0.99, p-value

Suggested Citation

  • Mohammad A Alsallakh & Sarah E Rodgers & Ronan A Lyons & Aziz Sheikh & Gwyneth A Davies, 2021. "Association of socioeconomic deprivation with asthma care, outcomes, and deaths in Wales: A 5-year national linked primary and secondary care cohort study," PLOS Medicine, Public Library of Science, vol. 18(2), pages 1-27, February.
    • Handle: RePEc:plo:pmed00:1003497
    DOI: 10.1371/journal.pmed.1003497
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