Association between community-based self-reported COVID-19 symptoms and social deprivation explored using symptom tracker apps: a repeated cross-sectional study in Northern Ireland

Autor: Conor Graham, Hugo van Woerden, Neil Anderson, Peter M Atkinson, Declan T Bradley, Jennifer M McKinley, Ute Mueller
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: BMJ Open, Vol 11, Iss 6 (2021)
Druh dokumentu: article
ISSN: 2044-6055
DOI: 10.1136/bmjopen-2020-048333
Popis: Objectives The aim of the study was to investigate the spatial and temporal relationships between the prevalence of COVID-19 symptoms in the community-level and area-level social deprivation.Design Spatial mapping, generalised linear models, using time as a factor and spatial-lag models were used to explore the relationship between self-reported COVID-19 symptom prevalence as recorded through two smartphone symptom tracker apps and a range of socioeconomic factors using a repeated cross-sectional study design.Setting In the community in Northern Ireland, UK. The analysis period included the earliest stages of non-pharmaceutical interventions and societal restrictions or ‘lockdown’ in 2020.Participants Users of two smartphone symptom tracker apps recording self-reported health information who recorded their location as Northern Ireland, UK.Primary outcome measures Population standardised self-reported COVID-19 symptoms and correlation between population standardised self-reported COVID-19 symptoms and area-level characteristics from measures of multiple deprivation including employment levels and population housing density, derived as the mean number of residents per household for each census super output area.Results Higher self-reported prevalence of COVID-19 symptoms was associated with the most deprived areas (p
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