Most of us know someone who has tried to stop smoking. Patches, gum, nicotine lozenges, a long walk around the block when a craving hits. For a lot of people it takes more than one try, and often more than one method.
The latest update to the Cochrane living review of quit-smoking methods points to regulated nicotine e-cigarettes as more effective than nicotine patches or gum. The review is led by the University of Oxford and the University of Massachusetts Amherst.
Pooling 80 randomized trials with 29,861 smokers, the researchers found that nicotine vapes helped about 4 more people per 100 quit than nicotine replacement therapy did. In raw numbers, roughly 8 to 10 of every 100 vape users had stopped six months later.
For patches and gum, it was about 6 in 100.
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What the review actually tested
The analysis is part of a living systematic review that updates as new trials come in. The latest version in the Cochrane Database of Systematic Reviews added 9 new trials, bringing the total to 80 and the participant pool to just under 30,000.
Cochrane reviews are considered the gold standard in evidence medicine. They pool trials, grade how certain the evidence is, and feed into guidelines used by health authorities around the world.
The strongest finding, graded high-certainty, was the head-to-head with nicotine replacement therapy such as patches and gum. Nicotine vapes also outperformed vapes without nicotine, and beat behavioral support alone or no support at all.
The caveat the researchers want you to hear
The team is firm on one point. The finding applies only to regulated, nicotine-containing e-cigarettes. Unlicensed products, including devices filled with THC or unknown liquids, carry their own risks, from unstable batteries to harmful chemicals.
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Jamie Hartmann-Boyce, the senior author at the University of Massachusetts Amherst, put the trade-off plainly. "We have very strong evidence that regulated nicotine e-cigarettes are substantially less harmful than smoking," she said.
The researchers also flagged concerns that reach beyond adults who smoke. Nicotine is addictive, and vape use among children and teenagers has raised worries that e-cigarettes may pull non-smokers into dependence.
That matters because nicotine itself is not harmless. Early signs of blood vessel damage from nicotine have shown up in young, otherwise healthy adults.
Where this leaves people trying to quit
Patches, gum and nicotine lozenges are still the most common tools in US stop-smoking programs, and they do work for many people. The Cochrane review does not call them useless. It argues that, on average, regulated nicotine vapes work slightly better.
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For readers weighing their options, the review's authors suggest treating e-cigarettes as one choice among several, not the only one. People with underlying heart or lung disease, or who are pregnant, should talk through the options with a doctor or a stop-smoking service.
The reviewers plan another update as more trials report. Tobacco causes more than 7 million deaths a year worldwide, including over 1.6 million non-smokers from secondhand smoke, according to the World Health Organization.
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This article is made and published by Jesper Bengtson, who may have used AI in the preparation.