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A University of Iowa vaping study proved more can be less.

Releasing data from a recent study, Hawkeyes researchers suggested more adults have experienced e-cigarettes, but a dwindling number are vaping consistently, according to dailyiowan.com.

Analyzing data from the U.S. Centers for Disease Control and Prevention (CDC), Iowa officials, led by Bao, an assistant professor of epidemiology, concluded the number of adults who tried vaping increased 2.7 percent from 2014 to 2016. CDC determined 15.3 percent of Americans vaped in 2016.

Published in recent editions of the Journal of the American Medical Association, the study also pointed to a .5 percent drop of regular e-cigarette users two years ago. There were approximately 3.2 percent in 2016, according to CDC.

Iowa Department of Public Health Community Health Consultant Garin Buttermore expected to see similar results.

“I don’t think it was terribly surprising to me that more adults are using e-cigarettes, as was reported,” Buttermore told newspaper.

Offering a counter perspective, Mark Vander Weg offered caution to his peers. More research is required on long-term exposure, said the Univerisity of Iowa Professor of Internal Medicine and Psychological and Brain Sciences.

“We really know almost nothing about the long-term health effects of it, and that’s going to take a while, of course, to figure out,” Vander Weg told dailyiowan.com. “What we do know is a little bit about the chemicals that people who use these get exposed to.”

Critical observers of the study were not rounded out with enough data regarding the smoking histories of the subjects and what impact has vaping had on their tobacco intake. Additional research is expected from the University of Iowa.

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