Just over 55% of adults who quit smoking cigarettes less than a year before had tried an electronic cigarette, and 22% were currently using them in 2014, the National Center for Health Statistics reports.
Overall, almost 13% of adults had ever tried an electronic cigarette, and close to 4% were using them regularly. Among current smokers, 47% had tried an e-cigarette, and nearly 16% were currently using them, according to data from the 2014 National Health Interview Survey.
Former smokers who quit more than a year before were much less likely to have tried an e-cigarette (9%) or to be a current user (2%), while 3% of never cigarette smokers reported that they had tried an e-cigarette and 0.4% were currently using them, the NCHS said.