An online survey of 2,500 Danish adults found that half of respondents have tried vaping.
More than half said they thought vaping was safer than smoking.
But a small percentage of those who tried e-cigarettes said they were not comfortable using them.
“This is a very young age, it’s a new generation, and so the risks are very high,” said Kristian Lund, a professor of health policy at the University of Copenhagen.
“The question is how do you take that risk away?”
It’s not clear how many of the people who have tried e.cigarettes have actually tried the actual smoking product, and there are also some people who are saying that they have tried both,” Lund said.
He said that, in the long run, e-cigarette users could have an increased risk of death from tobacco, lung cancer and other illnesses.
The Danish tobacco industry has said e-cig use will soon be banned in the country, and its lobbyists are lobbying to keep vaping on the shelves.
The poll also found that more than half of the respondents believed e-cigs could lead to an increase in lung cancer, and that they were more likely to be smokers.
The poll was conducted from January 16 to January 22, according to the Public Health Agency.