Skip to main content
Opens in a new tab External site
Global Medical Costs Expected to Increase in 2018 as Local Rates of Inflation Rise
New Aon analysis reveals poor lifestyle habits and increased utilization of health care are key contributors in cost increases around the world

CHICAGO, Ill. (December 14, 2017) – Global inflation rates are projected to rise around the world in 2018, and cost increases for employer-sponsored medical plans are likely to follow suit, according to a new report from Aon, the leading global professional services firm providing a broad range of risk, retirement and health solutions. Global average cost increases are projected to be 8.4 percent in 2018—nearly three times the projected rate of inflation of 3.1 percent.

Aon’s report reflects the medical trend expectations of employer-sponsored medical plans in 99 countries based on reported data from Aon professionals, clients and carriers represented in the portfolio of Aon medical plan business in each country. 

Projected medical trend rates for 2018 are expected to vary significantly by region. For example, countries in the Middle East/Africa and Latin America regions should continue to see the highest average medical premium rates of any region, at 15.3 percent and 13.9 percent respectively. In contrast, Asia Pacific, Europe and North America are projected to see average rate increases in the single digits, with Europe seeing the lowest rate of increase at 5.8 percent.

Despite variations in regional trend rates, all regions are expected to exceed average regional inflation levels by nearly four percentage points. According to Aon, the gap between average global medical trend rates and average general inflation rates have remained above 5 percentage points over the past five years, leading to a nominal cumulative increase of 69 percent from 2013 to 2018.

“Medical cost trend rates continue to increase due to many factors, including global population aging, poor lifestyle habits in emerging countries, cost shifting from social health care programs and the increased prevalence and utilization of employer-sponsored health plans in many countries,” said Wil Gaitan, senior vice president and global consulting actuary at Aon. “Today’s multinational employers are experiencing the increased costs and complexities across their organizations with lower employee productivity levels due to the aforementioned factors.”

Average Medical Trend Rates by Region





Gross medical trend rate

Annual general inflation rate

Gross medical trend rate

Annual general inflation rate

Asia Pacific










Latin America and Caribbean*





Middle East and Africa





North America











*Includes Mexico

Poor Health Habits Primary Driver of Cost Increases

Aon's report revealed the increasing impact of non-communicable diseases worldwide on health care costs. Cancer, cardiovascular ailments such as high blood pressure, diabetes and respiratory conditions were the most prevalent health conditions driving health care claims around the world.  Aon’s report also confirms the growing prevalence of risks from unhealthy personal habits around the world—such as physical inactivity, poor stress management, bad nutrition and obesity, high cholesterol and high blood pressure.

"Many of the global risk factors often lead to chronic conditions with long medical cost tails that make them expensive to treat and result in long-term medical cost increases,” noted Tim Nimmer, chief health care actuary at Aon.  “Employers can play a key role by motivating individuals and their families to take a more active role in managing their health, including participating in health and wellness activities and better managing  chronic conditions that are fueling medical cost escalation around the world.”  

Employer Strategies for Alleviating Medical Costs

To mitigate costs, Aon’s report revealed a growing number of companies are moving away from traditional strategies such as tweaking plan designs and negotiating with carriers and focusing more on impacting the root causes of high health care costs. This includes targeted programs to reduce chronic conditions and more education tools to help consumers better use their health care benefits.

These strategies vary in prominence based on region. For example, cost containment was the most prevalent strategy in countries in Asia Pacific and Europe. A focus on basic wellness strategies, such as detection and education, as well as preventive strategies like vaccinations, were more prevalent in countries in Latin America and in the Middle East/Africa.

“Employers need to adopt more innovative strategies to mitigate costs and influence the health and wellbeing of their employee population, although the task is made difficult by the lack of available detailed claim data from company plans and social programs. A good start is educating employees on the importance of good health, particularly in regions like Europe and Latin America where non-communicable diseases have a high impact on premium costs,” said Francois Choquette, leader of Aon’s Global Benefits practice.


About Aon

Aon plc (NYSE:AON) is a leading global professional services firm providing a broad range of risk, retirement and health solutions. Our 50,000 colleagues in 120 countries empower results for clients by using proprietary data and analytics to deliver insights that reduce volatility and improve performance.

For further information on our capabilities and to learn how we empower results for clients, please visit

Follow Aon on Twitter:

Sign up for News Alerts:

Media Contact:

Maurissa Kanter, +1 847.442.0952,

Media Resources

Access international media contacts, the full library of Aon media releases, and a media kit with fact sheet and executive bios, via links below.

Media Contacts
Media Releases
Media Kit
Featured Updates