A Randomized Trial of E-Cigarettes versus Nicotine-Replacement Therapy
Hajek P,
Whillips-Waller A, Przulj, et al. N Engl J Med 2019; 380:629-637
DOI: 10.1056/NEJMoa1808779
This study showed thsat when accompanied by behavioral support, E-cigarettes were more effective for smoking cessation than nicotine-replacement therapy. So even though they may be bad for those who have never smoked, they could be useful for those that are trying to quit.