ABSTRACT
Background: Throughout Wales and the world, health inequality remains a problem that is interconnected with a wider and complex social, economic and environmental dynamic. Subsequently, action to tackle inequality in health needs to take place at a structural level, acknowledging the constraints affecting an individual's (or community's) capability and opportunity to enable change. While the 'social determinants of health' is an established concept, fully understanding the composition of the health gap is dependent on capturing the relative contributions of a myriad of social, economic and environmental factors within a quantitative analysis. Method: The decomposition analysis sought to explain the differences in the prevalence of these outcomes in groups stratified by their ability to save at least £10 a month, whether they were in material deprivation, and the presence of a limiting long-standing illness, disability of infirmity. Responses to over 4,200 questions within the National Survey for Wales (n = 46,189; 2016-17 to 2019-20) were considered for analysis. Variables were included based on (1) their alignment to a World Health Organization (WHO) health equity framework ("Health Equity Status Report initiative") and (2) their ability to allow for stratification of the survey sample into distinct groups where considerable gaps in health outcomes existed. A pooled Blinder-Oaxaca model was used to analyse inequalities in self-reported health (fair/poor health, low mental well-being and low life satisfaction) and were stratified by the variables relating to financial security, material deprivation and disability status. Results: The prevalence of fair/poor health was 75% higher in those who were financially insecure and 95% higher in those who are materially deprived. Decomposition of the outcome revealed that just under half of the health gap was "explained" i.e., 45.5% when stratifying by the respondent's ability to save and 46% when stratifying by material deprivation status. Further analysis of the explained component showed that "Social/Human Capital" and "Income Security/Social Protection" determinants accounted the most for disparities observed; it also showed that "Health Services" determinants accounted the least. These findings were consistent across the majority of scenarios modeled. Conclusion: The analysis not only quantified the significant health gaps that existed in the years leading up to the COVID-19 pandemic but it has also shown what determinants of health were most influential. Understanding the factors most closely associated with disparities in health is key in identifying policy levers to reduce health inequalities and improve the health and well-being across populations.
Subject(s)
COVID-19 , Health Status Disparities , Humans , Pandemics , Wales/epidemiology , IncomeABSTRACT
Background The Welsh Health Equity Status Report initiative (WHESRi) applies an innovative WHO framework to map the wider impacts of COVID-19 on health equity. The framework is a mechanism to promote policy action and commitment for health equity and identifies five essential conditions needed to live a healthy life;namely, health services, income security, living conditions, social and human capital, and working conditions. We used the framework to assess the immediate health equity impacts of COVID-19 in Wales. Methods Ten relevant variables from Public Health Wales' public engagement survey on health and wellbeing during COVID-19 (captured April 3–July 25, 2020) were mapped to each of the five essential conditions, as defined by the European Health Equity Status Report initiative. Variables were chosen based on alignment to the essential conditions, research objectives and data quality. Estimated marginal means were disaggregated by sociodemographic factors on a nationally representative study sample ranging from 862 to 4747 participants (dependent on duration for which question was asked). Ethical approval was not required as per guidance from the National Health Service Health Research Association ethics decision tool. Findings The WHESRi framework allowed the assessment and quantification of the immediate impacts of COVID-19 on the wider determinants of health through the lens of the five essential conditions. For example, in relation to income security, a significantly higher proportion (181 [50·6%] of 358;p<0·05) of survey respondents aged 18–24 years reported being worried about losing their job, or not being able to find one, than any other age group. Of those respondents aged 18–24 years, 54·4% (p<0·05) of men (equivalent to 78 000) reported being worried, compared with 44·3% (p<0·05) of women (equivalent to 72 000), a difference of 10·1%. Interpretation Application of the WHESRi framework allowed us to draw a holistic picture of health and its determinants at the population level. This application has highlighted quantifiable differences in impacts between population groups, and encouraged the dialogue around policy action. A priority moving forward is to apply the framework to vulnerable population groups and population health priorities to assess the health equity impacts according to factors such as rurality, disability, and ethnicity. Our findings resulting from the application of this WHO framework can be used to enable an equitable and sustainable recovery from the pandemic;they form part of a European initiative for health equity and provide learning to other countries from Wales' role as an innovation site. Funding None.