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Traveler's alert: Business travel linked to obesity and poor health

03.05.2011
Study finds that self-rated health, body mass index and cholesterol levels worsen with heavy travel

Road warriors who travel for business two weeks or more a month have higher body mass index, higher rates of obesity and poorer self-rated health than those who travel less often, according to researchers at Columbia University's Mailman School of Public Health.

The study, conducted by Andrew G. Rundle, DrPH and Catherine A. Richards, MPH, drew data from medical records of more than 13,000 employees in a corporate wellness program provided by EHE International. Nearly 80% of employees traveled at least one night a month and 1% traveled more than 20 nights a month. Findings are online in the Journal of Occupational and Environmental Medicine.

Overall, the researchers found that business people who traveled the most (20 or more days a month) have poorer health on a number of measures compared with those who travel between 1 and 6 days a month. For example, extensive travelers:

Had a mean Body Mass Index (BMI) of 27.5 kg/m2 versus 26.1 for light travelers
Had a mean HDL level of 53.3 mg/DLversus 56.1 for light travelers
Had a mean Diastolic pressure of 76.2 mmHG versus 74.6 for light travelers
Were 260% more likely to rate their health as fair to poor compared to light travelers

Employees who did not travel at all also scored poorly on health measures. For example, non-travelers were about 60% more likely than light travelers to rate their health as fair to poor and had a mean body mass index of 26.7 kg/m2. According to the authors, poor health among non-travelers may reflect a "healthy worker effect," with employees who have health problems being less likely to travel.

"Consistently we found that health outcomes were worse for those not traveling and those traveling the most," said Catherine Richards, doctoral candidate in the Mailman School Department of Epidemiology and first author. "And while the differences in clinical values for diastolic blood pressure and HDL were small, the results for self rated health are of concern because this simple measure is a very robust predictor of mortality. Similarly, the associations between business travel and obesity are noteworthy because of the many negative health consequences of this condition."

The authors note that 81% of business travel is done in personal automobiles, which is associated with long hours of sitting and a high probability of poor food choices.

While research to date has associated business travel with infectious disease health risks, this is the one of the first studies to report the effects of business travel on health risks associated with cardiovascular disease.

According to Dr. Rundle, associate professor of Epidemiology and senior author, the analyses represent an important first step in investigating the associations between chronic health conditions and business travel, suggesting that individuals who travel extensively for work are at increased risk for health problems and should be encouraged to monitor their health. "Should further research substantiate a link between business travel and obesity and other chronic disease health outcomes, there are several possibilities for workplace interventions. Employee education programs and strategies to improve diet and activity while traveling are a simple start."

About the Mailman School of Public Health

Founded in 1922 as one of the first three public health academies in the nation, Columbia University's Mailman School of Public Health pursues an agenda of research, education, and service to address the critical and complex public health issues affecting New Yorkers, the nation and the world. The Mailman School is the third largest recipient of NIH grants among schools of public health. Its 300 multi-disciplinary faculty members work in more than 100 countries around the world, addressing such issues as infectious and chronic diseases, environmental health, maternal and child health, health policy, climate change & health, and public health preparedness. It is a leader in public health education with over 1,000 graduate students from more than 40 nations pursuing a variety of master's and doctoral degree programs. The Mailman School is also home to numerous world-renowned research centers including the International Center for AIDS Care and Treatment Programs (ICAP), the National Center for Disaster Preparedness and the Center for Infection and Immunity. For more information, please visit www.mailman.columbia.edu

Stephanie Berger | EurekAlert!
Further information:
http://www.columbia.edu

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