According to a new study, electronic cigarettes help people trying to quit smoking. The Verge reports: For the study, published today in the journal BMJ, researchers analyzed survey data from over 160,000 people spanning almost 15 years. They found that smokers who used e-cigs tried to quit smoking more often and succeeded (for at least three months) more often than smokers who didn't use e-cigs. Overall, more people quit in the latest year that data was available -- the 2014 -- 15 year -- than in the 2010 -- 11 year. Today's study didn't address whether e-cigs are luring people who would otherwise be nonsmokers. But it did find that e-cigs do have a role in helping people quit. The researchers looked at several population surveys that cover the years 2001 to 2015. These surveys provided smoking-cessation rates, and the most recent survey, from 2014 to 2015, had information about e-cigarette usage. The results show that 65 percent of e-cigarette users had tried to quit smoking, versus 40 percent of people who smoked but didn't use e-cigs. About 8 percent of e-cig users succeeded in quitting for at least three months, compared to about 5 percent of non-users. Overall, the number of people who quit smoking increased by 1.1 percentage points in 2015 from 2011. This might not seem that impressive, but it still represents about 350,000 people.