Providing free electronic cigarettes or other stop-smoking products to employees to get them to give up real cigarettes is less effective than the threat of taking away a cash reward for quitting, according to a new study that weighs the effectiveness of a variety of workplace incentive programs.

一项衡量了各种工作场所激励计划的有效性的新研究称，与其为员工提供免费电子香烟或其他戒烟产品让他们戒烟，还不如采用现金奖励的方法更有效。

The findings, published in The New England Journal of Medicine, call into question the claims by e-cigarette enthusiasts that the devices may be better than traditional quit aids at helping smokers to stop.

这项发表在《新英格兰医学杂志》上的研究结果，质疑了电子烟爱好者关于电子烟可能比传统戒烟方法更能帮助吸烟者戒烟的观点。

"Do they help people stop smoking? The answer to that is clearly no," lead author Dr. Scott Halpern, of the University of Pennsylvania Perelman School of Medicine in Philadelphia, said in a telephone interview.

费城宾夕法尼亚大学佩雷尔曼医学院的斯科特·哈尔伯恩博士在接受电话采访时表示：“它们能帮助人们戒烟吗？答案显然是否定的。”

"We cannot detect any evidence that they are better than offering free conventional smoking cessation aids or just providing information."

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