Every Year of Education Can Add Years to Your Life
By NORWEGIAN UNIVERSITY OF
SCIENCE AND TECHNOLOGY
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Researchers have known that those who reach higher levels of schooling live longer than others, but they didn’t know to what extent until now.
What they found was that the risk of death drops by two percent with every additional year of education.
That means those who completed
six years of primary school had a lower risk of death by an average of 13
percent. After graduating from secondary school, the risk of dying was cut by
nearly 25 percent, and 18 years of education lowered the risk by 34 percent.
Comparing Education with Other Health Factors
Researchers also compared the effects of education to other risk factors such as eating a healthy diet, smoking, and drinking too much alcohol, and they found the health outcomes to be similar.
For example, the benefit of 18 years of education can be compared to that of
eating the ideal amount of vegetables, as opposed to not eating vegetables at
all. Not going to school at all is as bad for you as drinking five or more
alcoholic drinks per day or smoking ten cigarettes a day for 10 years.
“Education is important in its own right, not
just for its benefits on health, but now being able to quantify the magnitude
of this benefit is a significant development,” said Dr. Terje Andreas Eikemo,
co-author and head of Centre for Global Health Inequalities Research (CHAIN) at
the Norwegian University of Science
and Technology (NTNU).
While the benefits of education are greatest
for young people, those older than 50 and even 70 years still benefit from the
protective effects of education.
Global
Impact of Education on Health
Researchers found no significant difference
in the effects of education between countries that have reached different
stages of development. This means that more years of education is just as
effective in rich countries as in poor countries.
“We need to increase social investments to enable access to better and more education around the globe to stop the persistent inequalities that are costing lives,” said Mirza Balaj, co-lead author and postdoctoral fellow at NTNU’s Department of Sociology and Political Science.
“More education leads to better employment and higher income, better
access to healthcare, and helps us take care of our own health. Highly educated
people also tend to develop a larger set of social and psychological resources
that contribute to their health and the length of their lives.”
“Closing the education gap means closing the mortality gap, and we need to interrupt the cycle of poverty and preventable deaths with the help of international commitment,” said Claire Henson, co-lead author and researcher at Institute for Health Metrics and Evaluation (IHME) at the University of Washington’s School of Medicine.
“In order to
reduce inequalities in mortality, it’s important to invest in areas that
promote people’s opportunities to get an education. This can have a positive
effect on population health in all countries.”
The study identified data from 59 countries
and included over 10,000 data points collected from over 600 published
articles. Most of the studies reviewed for this study were from high-income
settings, highlighting the need for more research in low- and middle-income
countries, particularly from sub-Saharan and north Africa where data are
scarce.
“Our focus now should be on regions of the
world where we know access to schooling is low, and where there is also limited
research on education as a determinant of health,” said Dr. Emmanuela Gakidou,
co-author and professor at IHME.
Reference: “Effects of education on adult
mortality: a global systematic review and meta-analysis” by Mirza Balaj, Claire
A. Henson, Amanda Aronsson, Aleksandr Aravkin, Kathryn Beck, Claire Degail,
Lorena Donadello, Kristoffer Eikemo, Joseph Friedman, Anna Giouleka, Indrit
Gradeci, Simon I. Hay, Magnus Rom Jensen, Susan A. Mclaughlin, Erin C. Mullany,
Erin M. O’connell, Kam Sripada, Donata Stonkute, Reed J.D. Sorensen, Solvor
Solhaug, Hanne Dahl Vonen, Celine Westby, Peng Zheng, Talal Mohammad, Terje Andreas
Eikemo and Emmanuela Gakidou, 23 January 2024, The Lancet
Public Health.
DOI:
10.1016/S2468-2667(23)00306-7