Critically discuss the relationship between social factors and health inequalities. Making reference to at least two theoretical approaches to explaining health inequalities, suggest how useful they are, as well as addressing their weaknesses.

Understanding the inequalities in health and their association with various social issues/factors is the objective of this essay. The essay also seeks to explain these underlying health inequalities with social factors using different theoretical methodologies.

But, before discussing the correlation between the various social factors and health inequalities we need to comprehend ourselves with the significance of Health. As per the World Health Organization (WHO): “

Health is a state


of complete physical, social and mental well-being and not merely the absence of disease or infirmity. The enjoyment of the highest attainable standard of health is one of the fundamental rights of every human being, without distinction of race, religion, political beliefs or economic and social conditions

”(WHO, 1948).1

Based on this definition, National Institute Health Excellence (NICE, 2012) defines Health Inequalities as “an inability to attain the health among different groups or individuals due to difference in their social, geographical, cultural/behavioural, biological or other factors.”2 In simpler terms, health inequalities can be defined as “

an unjust disparity in the health when these differences are not only preventable but are also unnecessary

”.3

To further explain these differences, different theoretical attempts were made including social class, material deprivation, behaviour and culture, artefact, environmental and selection theory, the geographical aspects, difference in genetics and the life course perception of health played a vital role in understanding the health inequalities.3

The diagram above shows the various causes of health inequalities divided into different categories of fundamental causes; environmental influences; and finally individual experiences which finally in-turn lead to the disparity in wellbeing and health of different groups or individuals.

The

fundamental causes

are the factors which cannot be undone such as, Global economic forces, socio-political environment and priorities lead to an unequal distribution of income, power and wealth which can further trigger poverty and marginalization of the individuals belonging to different social groups and classes.

These initial differences further influence the distribution of

environmental influences

, such as availability or accessibility of employment, schooling, better housing, health services and various societal & cultural opportunities. Thus, shaping the individual experiences across the population leading the inequalities in the health outcomes.

There are numerous examples across the globe which have claimed the link between these various social factors to the health of the individual or groups.

The very first information in this group is the

Black Report of 1980

stating the effect of the social classification of a person on his/her health.4 The findings reported a huge gap in the proportion of people suffering from ill-health increased as we go down the social ladder, which had nothing to do with the health services delivered by the National Health Services (NHS) in the country but was mainly due to unemployment, poor hygiene, low income and poor housing.4-7

Similarly, a publication by

Wilkinson and Pickett

(2009)  “

The Spirit Level

” also claimed that economically weaker sections of the societies have an additional ill-health and social problems compared to their stronger counterparts. This argument was further strengthened by the finding of “Strategic Review of Health Inequalities in England” (2010).8 Thus, advocating income inequality as a key explanation for all the prevailing health disparities.

However,the novel

Neoliberal discourse

was another factor which also provided an explanation to the health inequalities using factors other than income disparity. Few studies carried out in past have exhibited that more neoliberal countries (the United States of America) have poorer health compared to the less neoliberal countries (Canada).8 This was proven by a comparative study carried out by Siddiqui A et al.,(2013) to understand the effect of Neoliberal reform in both the countries. The findings of the study indicated that Canada was more resilient in terms of health inequalities despite the income inequality among various social groups. Canada was able to achieve this because of their policies of maintaining equality in the provision of various social goods like healthcare and education and maintaining a social cohesiveness across different racial/cultural & class-based groups.9  Additionally, Corburn D (2004), have also demonstrated the association of neo-liberalism (using infant mortality) with greater poverty and health inequalities and the countries with less neo-liberalism have better health compared to ones which are more neo-liberal.10

Another landmark example describing the effect of social factors on health disparity was the

Whitehall (I)Study.

The study concentrated on a group of British Civil Servants

–

wherein the people within each occupational grade tend to be similar, yet socially distinct between the grades. The study investigated the cardiovascular function, high blood pressure, smoking, hobbies etc among the individuals. The results showed that there was a steep inverse relationship between social class and high blood pressure. Summing up the outcomes, the researchers concluded more attention need to given to the social environment, job design and income inequality to avoid health disparities.11

These are a few pioneering examples depicting the effect of various social factors on the prevalence of health inequalities not only amongst different but also within similar social groups/ individuals.

As mentioned previously in the essay there are different theories explaining the health inequalities. However,  there are four main theories which are mostly applied to explain them ie., 5,6

1. 
   Behavioural Theory
   
   : Explaining the health-damaging/ promoting behaviour among the individuals/ groups such as diet choices, intake of alcohol and tobacco, usage of maternal & child care and other health services. This theory is useful in establishing a clear link between certain practices and outcomes (smoking and lung cancer), thus helping in planning for future health promotive/preventive measure. However, cohort studies (Whitehall’s study) have shown that health behaviour justifies only one-third of social differences in mortality. Furthermore, evaluations of these promotive/preventive interventions have seldom given any clear cut improvements in health.
2. 
   Materialist Theory:
   
   Poverty imperils individuals to health risks. Deprived individuals are more likely to reside in areas with higher risks like inadequate housing, air pollution etc.  The Black Report (1980) gave a materialist description to the importance of social class variances in health.4 However, many experts find the model to be insufficient since the so-called disadvantaged individuals are often provided with numerous benefits by the state making food or housing an unlikeable cause for disparity in health outcomes.
3. 
   Psycho-social Theory:
   
   Relates to the aspects of the social life affecting people’s state of mind. the researchers through the Whitehall Study have explained the effect of social environment on the health outcome of individuals working in different occupational rank.11 The theory is also been able to explain certain risky behaviour (smoking) prevalent among a certain group of people. However, it cannot fully explain the uneven distribution of employment and services between various classes and races.
4. 
   Life-course Theory:
   
   A relatively recent theory undertaking various social, psycho-social and biological factors experienced by a person during their lifetime. For example, a child experiencing inadequate living condition is more likely to have an educational and occupational disadvantage in future. The theory, on one hand, allows us to understand the implication of life experiences on future life outcomes. However, investigating life-course explanations becomes difficult as they require longitudinal data which is difficult to obtain.

A brief explanation of The Black Report (1980) using the above-mentioned theories

These theories help to differentiate the characteristics affecting health across different social classes over their lifetime.

For instance, the

behavioural theory

was used to describe the difference among numerous health-related choices such as dietary patterns, consumption of tobacco, alcohol and drugs, utilization of preventive healthcare services among different social groups.4-6 Similarly, the

materialist theory

was aptly used in the report as a decisive factor leading the health inequalities. The theory encompassed the factors like air pollution, infestations and respiratory hazards which has risen due to poor income condition.4,5,7

Likewise, the

psycho-social theory

explains the concept of people’s experiences determining the changes in the physiology of their body. For instance, a hectic social atmosphere associated with the lower working groups of an organization can produce a negative biological effect in the body leading to a greater incidence of morbidity and mortality among the people belonging to that societal section.

And finally, the

life-course theory

which focused on all the aspects of societal, emotional and biological advantages and disadvantages occurring during the lifetime of a person which eventually defines the health outcome of that particular individuals. This could be again be used for the people living in the poorer section of society who were at a disadvantage since their birth, thus ultimately resulting in inferior health and social outcomes during their entire lifetime.

Therefore, in the end, there are few things which can be concluded through this essay. Firstly, even though there are many theories explaining health inequalities among different social groups, its mainly the socio-economic conditions along with the political, societal and environmental forces which predominantly create or destroy a person’s health and wellbeing. Secondly, there isn’t one full-proof theory which can explain prevailing gaps in the healthcare system. Finally, despite having numerous theoretical explanations to numerous health inequalities the political and societal forces across the nations have failed to address these social factors. Henceforth, there is a dire need to address these factors in order to ensure an equal chance of a healthy life for everyone.

References

1. World Health Organization. Constitution. World Health Organization.1989.
2. The National Insititute for Health and Care Excellence. Health Inequality and population health. The National Institute for Health and Care Excellence. 2012.
3. Arcaya MC, Arcaya AL, Subramanian SV. Inequalities in health: definitions, concepts, and theories. Global health action. 2015 Dec 1;8(1):27106.
4. Black SD. Inequalities in health: report of a Research Working Group. Department of Health and Social Security; 1980.
5. Bartley M. Health Inequality: An Introduction to Theories, Concepts and Methods Cambridge. Polity. 2004.
6. Bartley M, Blane D. Inequality and social class. Sociology as applied to medicine. Elsevier. 2008 Jun 27.
7. Steinbach R. Inequalities in the distribution of health and health care and its access, including inequalities relating to social class, gender, culture and ethnicity, and their causes. Equality, equity and policy: inequalities in the distribution of health and health care and its access.2009
8. Peacock M, Bissell P, Owen J. Dependency denied: health inequalities in the neo-liberal era. Social Science & Medicine. 2014 Oct 1;118:173-80.
9. Siddiqi A, Kawachi I, Keating DP, Hertzman C. A comparative study of population health in the United States and Canada during the neoliberal era, 1980–2008. International Journal of Health Services. 2013 Apr;43(2):193-216.
10. Coburn D. Beyond the income inequality hypothesis: class, neo-liberalism, and health inequalities. Social science & medicine. 2004 Jan 1;58(1):41-56.
11. Marmot MG, Shipley MJ, Rose G. Inequalities in death—specific explanations of a general pattern?. The Lancet. 1984 May 5;323(8384):1003-6.