Both socioeconomic and environmental inequalities occur in all health outcome variables, both in morbidity and mortality.
Although it is true that we will all die eventually, the causes of such mortality can differ greatly and it has been seen that these causes can exhibit differences per geographical region, time period, and different variables, such as sex.
In Spain, the general mortality rate (per 1000 inhabitants) still differs greatly among the different Autonomous Regions. In 2018, the Autonomous Regions with the lowest mortality rates were Madrid and the Balearic Islands, whereas those with the highest mortality rates were Asturias and Castile and Leon. In the case of Asturias and Castile and Leon, this increased rate is probably explained by the greater aging of the population. Furthermore, and as expected, mortality among men continues to be higher than among women, and has gradually increased in both sexes over the years.
We observed that mortality due to pneumonia and influenza has increased, probably due to the greater mean age of the population, as these diseases are associated with much higher mortality rates among the elderly and people with concomitant diseases.
It should be noted that the Autonomous Regions with a lower per capita gross domestic product (GDP) are characterized by a lower life expectancy and higher mortality rates, both overall and from different causes. In some cases, a notable inequality can be observed within the Autonomous Regions themselves, a fact that should be addressed together with the impact of socioeconomic level on these inequalities.
Studying the distribution of both mortality and morbidity is of great value for prevention, as it reflects the distribution of the risk factors affecting the studied causes.
Thus, nowadays there is still a need to reduce inequalities, in both life expectancy and mortality, which have proven to continue to be very important, and to consider them in the prevention and treatment of different health events, such as in the highly predictable outbreaks of COVID-19.